dental composites
17 likes3,214 views
This document provides an overview of dental composites, including their classification, properties, polymerization, applications, and recent advancements. It discusses various ways composites can be classified, such as by particle size (Skinner, Bayne & Hayman, Phillips & Lutz classifications) or viscosity. Key properties like coefficient of thermal expansion, water absorption, wear resistance, and aesthetics are covered. The document also summarizes factors that influence composite polymerization and recommendations for different types of restorations. Recent developments like compomers, antibacterial composites, and silorane composites are briefly mentioned. Indirect composites including fibre reinforced composites and ceromers are also listed.
1 of 14
Recommended
Microleakage and adhesion / endodontic courses
Microleakage and adhesion / endodontic coursesIndian dental academy
油
The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and
offering a wide range of dental certified courses in different formats.Glass ionomer cement
Glass ionomer cementDrJayesh Tiwari
油
This document provides an overview of glass ionomer cement (GIC), including:
1. The history and development of GIC from its invention in 1972 to current modifications.
2. Classifications of GIC based on various criteria such as type, clinical use, and curing method.
3. The composition of GIC including glass powder, polyacrylic acid liquid, and their roles in the setting reaction.
4. Key properties of GIC such as working time, strength, fluoride release, biocompatibility, and indications/contraindications for use.
5. Modifications to traditional GIC including water-hardening and metal-modified versions.Tooth colored restorative materials
Tooth colored restorative materialsEnosh Steward
油
Tooth Colored Restorative Materials describes in brief regarding the various materials used as cements and crown for loss of tooth structure either by caries or other factors like trauma, GERD, Abrasion etc Chemical Plaque Control
Chemical Plaque ControlMehul Shinde
油
This document discusses chemical plaque control agents. It begins by defining terms like antimicrobial agents, antiplaque agents, and antigingivitis agents. It describes ideal properties of antiplaque agents such as eliminating pathogens selectively and exhibiting substantivity. The document then examines various approaches to chemical plaque control like using antiadhesive, antimicrobial, plaque removal, and antipathogenic agents. Specific agents discussed in detail include chlorhexidine, povidone-iodine, triclosan, and delmopinol. The modes of action, effectiveness, and potential side effects of different agents are summarized.Dental Ceramics and Porcelain fused to metal 
Dental Ceramics and Porcelain fused to metal isabel
油
This document discusses ceramics and porcelain fused to metal restorations. It describes the composition and properties of dental ceramics and porcelains, including feldspathic and aluminous porcelains. The applications and parts of porcelain fused to metal restorations are outlined. The benefits and drawbacks of metal-ceramic restorations are summarized. Requirements for the metal coping and bonding of porcelain to the coping are also summarized.Liner Bases & Varnishes
Liner Bases & VarnishesNishant Khurana
油
This document provides information on cavity liners and bases used for pulp protection. It begins with an introduction and overview of steps for tooth preparation. It then discusses the objectives of pulp protection including sealing smear layers and providing chemical, electrical, thermal and mechanical protection.
It classifies intermediary bases according to different authors and lists ideal requirements. It describes different types of liners in detail - solution liners (varnishes), suspension liners, and cement liners. Their compositions, thicknesses, functions and applications are explained. Finally, it defines cavity bases, their types (high strength and low strength), and purposes of providing thermal protection and mechanical support to the pulp.Isolation: The Rubber Dam
Isolation: The Rubber DamDr Aaron Sarwal
油
The Rubber Dam, in dentistry is the most important tool for isolation. read about how it is used and what are the recent advancements in this field.Cast restorations
Cast restorationsDeepthi P Ramachandran
油
History
Indications
Contraindications
Advantages
Disadvantages
Materials for cast restorations
Mouth preparation prior to cast restorations
Dental ceramics
Dental ceramicsRajan Kumar
油
Ceramics have many applications in dentistry due to their esthetic qualities, strength, and biocompatibility. Ceramics are used in crowns, bridges, veneers, dentures, and more. There are several types of ceramics including metal-ceramics, which combine a ceramic material fused to a metal framework for strength, and all-ceramic options made of materials like alumina and zirconia. Ceramic materials are fabricated through processes like sintering, heat pressing, slip-casting, and CAD/CAM milling. Ceramics provide natural-looking and long-lasting restorations but also have limitations like brittleness which new materials continue to addressPulp capping 
Pulp capping shekhar star
油
This document summarizes different techniques for pulp capping including direct and indirect pulp capping. It discusses the history of various materials used for pulp capping such as calcium hydroxide and mineral trioxide aggregate. Key points covered include the indications and contraindications for pulp capping, the ideal properties of capping materials, and the histological response after pulp capping including zone formation. The document provides an overview of pulp capping procedures and factors influencing their success.Pulp protection
Pulp protectionAbhijeet Pallewar
油
This document discusses various methods and materials used for pulp protection during restorative procedures. It describes the pulp-dentin complex and factors that can irritate the pulp. Methods for protecting the pulp include indirect and direct pulp capping. Direct pulp capping involves placing a biocompatible material over an exposed pulp. Indirect pulp capping leaves a thin layer of dentin and caries to avoid exposure. Materials traditionally used include calcium hydroxide, zinc oxide eugenol, and glass ionomers. Newer materials like Biodentine, a calcium silicate-based cement, have shown promising results for pulp capping and stimulation of reparative dentin formation.Pulpal reactions to caries and dental procedures
Pulpal reactions to caries and dental proceduresMohammed Alshehri
油
This document discusses pulpal reactions to various dental procedures and materials. It covers:
1. Protective pulpal reactions to dental caries, including decreased dentin permeability, tertiary dentin formation, and inflammatory immune responses.
2. Pulpal reactions to local anesthetics, restorative procedures, and materials can range from reversible inflammation to irreversible pathology depending on factors like pretreatment pulp health, physical/chemical irritation level, and proximity to the pulp.
3. Direct effects of restorative materials include cytotoxic components, while indirect effects involve faulty bonds leading to hypersensitivity or recurrent decay. Conditioning dentin properly during restorations is important to minimize pulpal irritation.Detection and diagnosis of dental caries
Detection and diagnosis of dental cariesGhaith Abdulhadi
油
Here's a presentation about how we can detect and diagnose the carious lesion.
Uploaded by; Dr. Ghaith Abdulhadi Al-Otaibi
College Of DentistryMuscles surrounding Complete Denture
Muscles surrounding Complete DentureNaveed AnJum
油
As we know that the muscles play an important role in stability and support of a prosthesis,hence we should be well learned about their peripheries and actions.Trauma from occlusion
Trauma from occlusionNavneet Randhawa
油
- Trauma from occlusion occurs when occlusal forces exceed the adaptive capacity of the periodontium, causing injury. It can be acute or chronic.
- The magnitude, direction, duration, and frequency of forces impact the periodontium's ability to adapt. Excessive pressure or tension can damage tissues.
- Primary trauma from occlusion is caused by changes in occlusal forces, while secondary trauma occurs when reduced bone support impairs the tissues' resistance to normal forces.
- The periodontium responds to trauma in three stages - injury, repair through new tissue formation, and adaptive remodeling to better withstand forces. Trauma can cause reversible damage if forces are reduced, or lead to irreversible injury ifGlass ionomer cement
Glass ionomer cementAbhijeet Pallewar
油
glass ionomer cements ...with all recent advanves
by dr.abhijit pallewar MDS endodontics sibar dental college Wasting diseases of teeth final
Wasting diseases of teeth finalPrachee Hendre
油
The wasting diseases of teeth, namely attrition, abrasion and dental erosion have taken their toll in the population around the world due to the changing lifestyles, increase in the stress levels and many others factors that were persistent earlier but have suddenly increased drastically. This presentation brings to light the new factors that have attributed to this condition as well as discusses the previous ones.Composite resins I
Composite resins IMettinaAngela
油
Composite resins are composed of three main components: a cross-linked polymeric matrix, coupling agents, and glass/resin fillers. They have evolved from macrofilled composites in the 1960s to modern nanofilled and self-adhesive composites. Composites are classified based on filler size and type, as well as their intended application area. Photocuring units such as LED lamps are used to activate the initiator-accelerator system and initiate polymerization. Properties such as degree of conversion, matrix constraint, and wear resistance are influenced by factors like filler loading and size. Recent advancements continue to improve longevity, placement time, and biocompatibility of these resin-based materials.Gingival crevicular fluid
Gingival crevicular fluidNavneet Randhawa
油
gingival crevicular fluid, contents, nature, functions, studies related to gcf, GCF as a diagnostic tool in periodontitisInlay
InlayAnubhuti Singh
油
An inlay may cap none, or may cap all but one cusp.
Sturdevants 4th ed. page579
Inlays may be used as single-tooth restorations for proximo-occlusal or gingival lesions with minimal to moderate extensions
Shillingburg page 1
An inlay may be defined as a restoration which has been constructed out of mouth from gold, porcelain, or other material & then cemented into the prepared cavity of a tooth.
William McGehee pg410
Recent Advances in Dental Ceramics
Recent Advances in Dental CeramicsDr. Prathamesh Fulsundar
油
There have been several changes since inception in the field of dental ceramics. Need for newer materials with improved aesthetics, flexural strength and optical properties made it necessary for introduction of advanced technology in fabrication of dental ceramics.Strength and creep of dental amalgam
Strength and creep of dental amalgamPrateek Mathur
油
The document discusses the properties of dental amalgam materials used for fillings. It notes that amalgam is strongest in compression but weaker in tension and shear. It also discusses the importance of strength and creep resistance for amalgam alloys, listing typical compressive and tensile strength values. The document describes factors that influence the strength and creep of amalgam, and methods for testing these properties.Luting cements
Luting cementsKrittika Kuhar
油
The document discusses different types of luting cements used to cement indirect dental restorations. It describes the ideal requirements of luting cements and provides classifications based on ingredients and application. Specific cements are discussed in detail, including their composition, setting reactions, indications, advantages and disadvantages. The key cements covered are zinc phosphate, polycarboxylate, zinc oxide eugenol, and glass ionomer.Caries Vaccine ppt
Caries Vaccine pptVenkitachalam R
油
This document discusses the potential for a dental caries vaccine. It begins by defining dental caries and explaining why it is a major public health problem. It then covers how the immune system works and classifications of immunity. Key aspects of the microbiology of dental caries are explained, focusing on Streptococcus mutans and its antigenic determinants. The document discusses the need for a caries vaccine, potential routes of administration including mucosal and systemic routes, and advantages and disadvantages of passive immunization approaches. It concludes by considering the public health perspective on a potential caries vaccine and analyzing whether it could help reduce the global burden of dental caries.Impression techniques
Impression techniquesDr. Meenal Atharkar
油
This document discusses various techniques for dental impressions, including:
1. Techniques are categorized based on mouth position (open vs closed), pressure applied (positive, negative, selective), mixing technique (double mix, putty-wash, monophase), and tray used (custom vs stock).
2. The putty-wash technique involves injecting light-body material around a tooth preparation and seating a tray filled with heavy-body material over it to capture both materials.
3. The monophase or single-mix technique uses a medium-viscosity material both in a stock tray and syringe to reduce waste and time compared to custom trays.Rationale of endodontics
Rationale of endodonticsalka shukla
油
This document provides an overview of endodontics. It defines endodontics as the branch of dentistry concerned with the morphology, physiology, and pathology of the dental pulp and periradicular tissues. The scope of endodontics includes treating diseases of the pulp, such as pulpal inflammation and infection, through both nonsurgical and surgical root canal treatment and periradicular surgery. Pathogenesis is discussed, noting that while physical and chemical factors can induce inflammation, microbial infection is essential for progression of pulpal and periradicular disease. Routes of canal infection and the focal infection theory are also summarized.Residual Ridge Resorption
Residual Ridge ResorptionSk Aziz Ikbal
油
This document discusses residual ridge resorption (RRR), which is the ongoing loss of jawbone that occurs after tooth extraction. It begins with definitions and an overview of the extraction healing process. It then covers the basic bone structure, cells involved in bone remodeling, and the mechanisms of bone resorption. The pathology, pathophysiology, and pathogenesis of RRR are explained. Changes to the maxilla and mandible due to RRR are described. The document lists anatomical, metabolic, functional, and prosthetic factors that contribute to RRR and discusses its epidemiology and etiology.SURVEYORS & SURVEYING PROCEDURES IN REMOVABLE PARTIAL PROSTHODONTICS
SURVEYORS & SURVEYING PROCEDURES IN REMOVABLE PARTIAL PROSTHODONTICSKanika Manral
油
The document discusses the history and procedures of surveying for removable partial dentures. It describes how surveying has evolved from being done by eye to using specialized surveyor instruments. It outlines the key parts and uses of surveyors, including orienting the cast, marking survey lines to identify contours and undercuts, measuring retention, and identifying interferences. The purpose of surveying is to determine the optimal path of insertion and locations for retention and support of a removable partial denture.Composite resin restoration in dentistry
Composite resin restoration in dentistryDr. Mayank Nahta
油
Dr. Mayank Nahta presented on dental composites. Composites are polymers reinforced with filler particles that are bound together. Dr. Ray Bowen developed the first dental composite in 1962 using Bis-GMA resin and glass/quartz fillers. Composites are used for restorations, veneers, cores, and more. They are classified based on properties like filler size, composition, and curing method. Composites provide strength, polishability, aesthetics, and more depending on their formulation. Developments include microfilled, small particle, hybrid, and flowable composites to optimize properties.@@@@Copy of posterior composit restorations
@@@@Copy of posterior composit restorationsIbraheem El-shenawe
油
This document summarizes the history and types of posterior composite resin restorations. It discusses the introduction of microfill, hybrid, and microhybrid composites in the 1980s-1990s with improvements in physical properties but continued problems with wear. More recent developments include packable and flowable composites, with packables having high filler loading and strength for larger restorations, while flowables are low viscosity for non-stress areas. The document outlines techniques for isolation, cavity preparation, pulp protection, finishing, and polishing of posterior composite resins.More Related Content
What's hot (20)
Dental ceramics
Dental ceramicsRajan Kumar
油
Ceramics have many applications in dentistry due to their esthetic qualities, strength, and biocompatibility. Ceramics are used in crowns, bridges, veneers, dentures, and more. There are several types of ceramics including metal-ceramics, which combine a ceramic material fused to a metal framework for strength, and all-ceramic options made of materials like alumina and zirconia. Ceramic materials are fabricated through processes like sintering, heat pressing, slip-casting, and CAD/CAM milling. Ceramics provide natural-looking and long-lasting restorations but also have limitations like brittleness which new materials continue to addressPulp capping
Pulp capping shekhar star
油
This document summarizes different techniques for pulp capping including direct and indirect pulp capping. It discusses the history of various materials used for pulp capping such as calcium hydroxide and mineral trioxide aggregate. Key points covered include the indications and contraindications for pulp capping, the ideal properties of capping materials, and the histological response after pulp capping including zone formation. The document provides an overview of pulp capping procedures and factors influencing their success.Pulp protection
Pulp protectionAbhijeet Pallewar
油
This document discusses various methods and materials used for pulp protection during restorative procedures. It describes the pulp-dentin complex and factors that can irritate the pulp. Methods for protecting the pulp include indirect and direct pulp capping. Direct pulp capping involves placing a biocompatible material over an exposed pulp. Indirect pulp capping leaves a thin layer of dentin and caries to avoid exposure. Materials traditionally used include calcium hydroxide, zinc oxide eugenol, and glass ionomers. Newer materials like Biodentine, a calcium silicate-based cement, have shown promising results for pulp capping and stimulation of reparative dentin formation.Pulpal reactions to caries and dental procedures
Pulpal reactions to caries and dental proceduresMohammed Alshehri
油
This document discusses pulpal reactions to various dental procedures and materials. It covers:
1. Protective pulpal reactions to dental caries, including decreased dentin permeability, tertiary dentin formation, and inflammatory immune responses.
2. Pulpal reactions to local anesthetics, restorative procedures, and materials can range from reversible inflammation to irreversible pathology depending on factors like pretreatment pulp health, physical/chemical irritation level, and proximity to the pulp.
3. Direct effects of restorative materials include cytotoxic components, while indirect effects involve faulty bonds leading to hypersensitivity or recurrent decay. Conditioning dentin properly during restorations is important to minimize pulpal irritation.Detection and diagnosis of dental caries
Detection and diagnosis of dental cariesGhaith Abdulhadi
油
Here's a presentation about how we can detect and diagnose the carious lesion.
Uploaded by; Dr. Ghaith Abdulhadi Al-Otaibi
College Of DentistryMuscles surrounding Complete Denture
Muscles surrounding Complete DentureNaveed AnJum
油
As we know that the muscles play an important role in stability and support of a prosthesis,hence we should be well learned about their peripheries and actions.Trauma from occlusion
Trauma from occlusionNavneet Randhawa
油
- Trauma from occlusion occurs when occlusal forces exceed the adaptive capacity of the periodontium, causing injury. It can be acute or chronic.
- The magnitude, direction, duration, and frequency of forces impact the periodontium's ability to adapt. Excessive pressure or tension can damage tissues.
- Primary trauma from occlusion is caused by changes in occlusal forces, while secondary trauma occurs when reduced bone support impairs the tissues' resistance to normal forces.
- The periodontium responds to trauma in three stages - injury, repair through new tissue formation, and adaptive remodeling to better withstand forces. Trauma can cause reversible damage if forces are reduced, or lead to irreversible injury ifGlass ionomer cement
Glass ionomer cementAbhijeet Pallewar
油
glass ionomer cements ...with all recent advanves
by dr.abhijit pallewar MDS endodontics sibar dental college Wasting diseases of teeth final
Wasting diseases of teeth finalPrachee Hendre
油
The wasting diseases of teeth, namely attrition, abrasion and dental erosion have taken their toll in the population around the world due to the changing lifestyles, increase in the stress levels and many others factors that were persistent earlier but have suddenly increased drastically. This presentation brings to light the new factors that have attributed to this condition as well as discusses the previous ones.Composite resins I
Composite resins IMettinaAngela
油
Composite resins are composed of three main components: a cross-linked polymeric matrix, coupling agents, and glass/resin fillers. They have evolved from macrofilled composites in the 1960s to modern nanofilled and self-adhesive composites. Composites are classified based on filler size and type, as well as their intended application area. Photocuring units such as LED lamps are used to activate the initiator-accelerator system and initiate polymerization. Properties such as degree of conversion, matrix constraint, and wear resistance are influenced by factors like filler loading and size. Recent advancements continue to improve longevity, placement time, and biocompatibility of these resin-based materials.Gingival crevicular fluid
Gingival crevicular fluidNavneet Randhawa
油
gingival crevicular fluid, contents, nature, functions, studies related to gcf, GCF as a diagnostic tool in periodontitisInlay
InlayAnubhuti Singh
油
An inlay may cap none, or may cap all but one cusp.
Sturdevants 4th ed. page579
Inlays may be used as single-tooth restorations for proximo-occlusal or gingival lesions with minimal to moderate extensions
Shillingburg page 1
An inlay may be defined as a restoration which has been constructed out of mouth from gold, porcelain, or other material & then cemented into the prepared cavity of a tooth.
William McGehee pg410
Recent Advances in Dental Ceramics
Recent Advances in Dental CeramicsDr. Prathamesh Fulsundar
油
There have been several changes since inception in the field of dental ceramics. Need for newer materials with improved aesthetics, flexural strength and optical properties made it necessary for introduction of advanced technology in fabrication of dental ceramics.Strength and creep of dental amalgam
Strength and creep of dental amalgamPrateek Mathur
油
The document discusses the properties of dental amalgam materials used for fillings. It notes that amalgam is strongest in compression but weaker in tension and shear. It also discusses the importance of strength and creep resistance for amalgam alloys, listing typical compressive and tensile strength values. The document describes factors that influence the strength and creep of amalgam, and methods for testing these properties.Luting cements
Luting cementsKrittika Kuhar
油
The document discusses different types of luting cements used to cement indirect dental restorations. It describes the ideal requirements of luting cements and provides classifications based on ingredients and application. Specific cements are discussed in detail, including their composition, setting reactions, indications, advantages and disadvantages. The key cements covered are zinc phosphate, polycarboxylate, zinc oxide eugenol, and glass ionomer.Caries Vaccine ppt
Caries Vaccine pptVenkitachalam R
油
This document discusses the potential for a dental caries vaccine. It begins by defining dental caries and explaining why it is a major public health problem. It then covers how the immune system works and classifications of immunity. Key aspects of the microbiology of dental caries are explained, focusing on Streptococcus mutans and its antigenic determinants. The document discusses the need for a caries vaccine, potential routes of administration including mucosal and systemic routes, and advantages and disadvantages of passive immunization approaches. It concludes by considering the public health perspective on a potential caries vaccine and analyzing whether it could help reduce the global burden of dental caries.Impression techniques
Impression techniquesDr. Meenal Atharkar
油
This document discusses various techniques for dental impressions, including:
1. Techniques are categorized based on mouth position (open vs closed), pressure applied (positive, negative, selective), mixing technique (double mix, putty-wash, monophase), and tray used (custom vs stock).
2. The putty-wash technique involves injecting light-body material around a tooth preparation and seating a tray filled with heavy-body material over it to capture both materials.
3. The monophase or single-mix technique uses a medium-viscosity material both in a stock tray and syringe to reduce waste and time compared to custom trays.Rationale of endodontics
Rationale of endodonticsalka shukla
油
This document provides an overview of endodontics. It defines endodontics as the branch of dentistry concerned with the morphology, physiology, and pathology of the dental pulp and periradicular tissues. The scope of endodontics includes treating diseases of the pulp, such as pulpal inflammation and infection, through both nonsurgical and surgical root canal treatment and periradicular surgery. Pathogenesis is discussed, noting that while physical and chemical factors can induce inflammation, microbial infection is essential for progression of pulpal and periradicular disease. Routes of canal infection and the focal infection theory are also summarized.Residual Ridge Resorption
Residual Ridge ResorptionSk Aziz Ikbal
油
This document discusses residual ridge resorption (RRR), which is the ongoing loss of jawbone that occurs after tooth extraction. It begins with definitions and an overview of the extraction healing process. It then covers the basic bone structure, cells involved in bone remodeling, and the mechanisms of bone resorption. The pathology, pathophysiology, and pathogenesis of RRR are explained. Changes to the maxilla and mandible due to RRR are described. The document lists anatomical, metabolic, functional, and prosthetic factors that contribute to RRR and discusses its epidemiology and etiology.SURVEYORS & SURVEYING PROCEDURES IN REMOVABLE PARTIAL PROSTHODONTICS
SURVEYORS & SURVEYING PROCEDURES IN REMOVABLE PARTIAL PROSTHODONTICSKanika Manral
油
The document discusses the history and procedures of surveying for removable partial dentures. It describes how surveying has evolved from being done by eye to using specialized surveyor instruments. It outlines the key parts and uses of surveyors, including orienting the cast, marking survey lines to identify contours and undercuts, measuring retention, and identifying interferences. The purpose of surveying is to determine the optimal path of insertion and locations for retention and support of a removable partial denture.Similar to dental composites (20)
Composite resin restoration in dentistry
Composite resin restoration in dentistryDr. Mayank Nahta
油
Dr. Mayank Nahta presented on dental composites. Composites are polymers reinforced with filler particles that are bound together. Dr. Ray Bowen developed the first dental composite in 1962 using Bis-GMA resin and glass/quartz fillers. Composites are used for restorations, veneers, cores, and more. They are classified based on properties like filler size, composition, and curing method. Composites provide strength, polishability, aesthetics, and more depending on their formulation. Developments include microfilled, small particle, hybrid, and flowable composites to optimize properties.@@@@Copy of posterior composit restorations
@@@@Copy of posterior composit restorationsIbraheem El-shenawe
油
This document summarizes the history and types of posterior composite resin restorations. It discusses the introduction of microfill, hybrid, and microhybrid composites in the 1980s-1990s with improvements in physical properties but continued problems with wear. More recent developments include packable and flowable composites, with packables having high filler loading and strength for larger restorations, while flowables are low viscosity for non-stress areas. The document outlines techniques for isolation, cavity preparation, pulp protection, finishing, and polishing of posterior composite resins.Composite and acid etching
Composite and acid etchingMasuma Ryzvee
油
This document provides an overview of composite resins, including their composition, classification, performance factors, and clinical applications and considerations. It discusses the organic resin matrix and inorganic filler particles that make up composite, how they are classified based on filler size and type, and factors that influence their performance such as polymerization shrinkage and wear resistance. The document reviews the history of composites and their development over time. It also outlines the indications and contraindications for composite use as well as the advantages and disadvantages.Manish Composites ppt
Manish Composites pptjangidmanish816
油
The document discusses several fabrication techniques for composites, including physical vapor deposition (PVD), filament winding, and reaction bonding. PVD involves evaporating or condensing materials in a vacuum to form thin films. Filament winding uses fibers pulled through a resin bath and wound around a mandrel to form cylindrical parts. Reaction bonding forms ceramics by infiltrating a fiber preform with a matrix material using a chemical reaction at high temperatures, avoiding shrinkage issues.Ceramic membrane.pptx
Ceramic membrane.pptxKareem Hossam
油
This document discusses key production variables that affect ceramic membranes, including raw materials, fabrication methods, sintering temperature, and coating techniques. Raw materials like kaolin clay and fly ash can lower costs, while additives like zeolites and apatite suit different applications. Fabrication by slip casting, extrusion or pressing yields different strengths. Higher sintering temperatures increase properties but must be below melting points. Coating methods like sol-gel, CVD and ALD can precisely control layer thickness but require specialized equipment. Process variables must be optimized to produce high-performance ceramic membranes.RECENT ADVANCES AND DEVELOPMENTS IN COMPOSITE DENTAL RESTORATIVE [Autosaved]....![RECENT ADVANCES AND DEVELOPMENTS IN COMPOSITE DENTAL RESTORATIVE [Autosaved]....](https://cdn.slidesharecdn.com/ss_thumbnails/recentadvancesanddevelopmentsincompositedentalrestorativeautosaved-220719151352-01a90a41-thumbnail.jpg?width=560&fit=bounds)
RECENT ADVANCES AND DEVELOPMENTS IN COMPOSITE DENTAL RESTORATIVE [Autosaved]....nupur239418
油
Recent advances in dental composite materials can be summarized as follows:
1. Composites have evolved from macrofilled to microhybrid and nanohybrid formulations with smaller filler particles for improved esthetics, polishability and mechanical properties.
2. New low-shrinkage silorane and flowable composites were developed to reduce polymerization shrinkage and improve adaptability to tooth structure.
3. Packable composites with elongated fillers were introduced for posterior restorations to resist slumping during placement.Dental composites and advances
Dental composites and advancesSindhuVemula1
油
This document provides an overview of dental composites, including their history, composition, properties, classification and advances. Dental composites are resin-based materials used as restorative materials or adhesives in dentistry. They are composed of resin matrix, fillers, coupling agents and other additives. Key properties discussed include polymerization shrinkage, coefficient of thermal expansion, water sorption, color stability and radiopacity. The document also describes various types of composites and recent developments in composites aimed at improving properties like antibacterial activity and self-healing ability.Nilcra Zirconia ceramic for severe service pumps and valves
Nilcra Zirconia ceramic for severe service pumps and valvesraymondmouw
油
Nilcra Zirconia has found to provide excellent life cycle performance in areas where maintenance is high and control poorDentalcomposite
DentalcompositeShaker Samea
油
This document provides an overview of dental composites, including their chemistry, materials, filler types, bonding agents, curing methods, classifications, and clinical applications and techniques. Key points include:
- Dental composites consist of a resin matrix and filler materials, along with coupling agents to bond resin to fillers. They are polymerized through heat, chemical, or photochemical initiation.
- Fillers improve physical properties but characteristics depend on filler type, size, shape, and load. Larger and smaller filler particles reduce shrinkage.
- Bonding agents like silanes chemically coat fillers to improve strength, but can degrade with moisture.
- Composites are classified by initiation methodComposite resin
Composite resinWilda Bianca
油
Composite materials are made of a resin matrix and filler particles. They have superior properties to their individual components. There are several types of composites classified by filler particle size: macrofilled (8-12 亮m), small particle (1-5 亮m), microfilled (0.04-0.4 亮m), and hybrid (1 亮m). Macrofilled composites have the largest particles and produce the roughest surfaces, while microfilled composites have the smallest particles and smoothest surfaces. Hybrid composites have a mixture of particle sizes. The different types have various indications for use depending on their mechanical properties and ability to be polished.Composite
CompositeIpsita Pathak
油
This document provides an overview of composite resin materials used in dental restorations. It defines composite resin as a compound of two or more materials with superior properties to the individual components. Composite resins are classified based on filler size, percentage, resin type, viscosity, and curing method. The document outlines the composition of composite resins including resin matrix, filler particles, coupling agents, and initiators. It discusses advantages like esthetics and disadvantages like polymerization shrinkage. Properties like coefficient of thermal expansion, wear resistance, water absorption, and mechanical properties are also covered.Ccc
CccCharu Lakshmi
油
This document summarizes the process of making carbon-ceramic composites. It discusses using phenol formaldehyde resin and either graphite flakes or silicon carbide particles to make the composites. The materials are ball milled and hot pressed to form green composites. The green composites are then carbonized in nitrogen gas at high temperatures to form carbon-ceramic composites. The composites are characterized using SEM, XRD, and tribometry to analyze their microstructure, composition, and tribological properties.Restorative materials in pediatric dentistry
Restorative materials in pediatric dentistryRajan Chaudhary
油
This document discusses various restorative materials used in pediatric dentistry, including their properties and uses. It covers silver amalgam, glass ionomer cement (GIC), and modifications to GIC, including resin-modified GIC and metal-modified GIC. Silver amalgam has good strength but is not esthetic, while GIC bonds to tooth structure, releases fluoride, and has improved esthetics over amalgam but less strength. Modifications to GIC aim to improve its physical properties for use in stress-bearing areas. Factors like strength, esthetics, cariostatic effects, and indications and contraindications are considered when selecting a restorative material.Glass_Reinforced_Plastic_pptx.pptx
Glass_Reinforced_Plastic_pptx.pptxPradeepSrivastava61
油
This document discusses glass reinforced plastic (GRP), including its composition, manufacturing processes, properties, and applications. GRP consists of glass fibers embedded in a thermosetting plastic matrix. It offers advantages over other materials like steel due to its light weight, corrosion resistance, strength, and low maintenance. GRP can be manufactured through filament winding or centrifugal casting processes and is used in applications like pipes where its properties make it suitable for transporting chemicals and fluids.011.composites
011.compositesDr.Jaffar Raza BDS
油
1) The document discusses the composition and classification of dental composite restorations. Composite restorations contain organic resins, fillers, coupling agents, coloring agents, UV absorbers, initiators, and inhibitors.
2) Composite restorations are classified based on filler particle size and content, including macrofilled, microfilled, hybrid, nanofill, and microhybrid composites. More recent types include flowable, packable, and giomer composites.
3) The properties of composite restorations are influenced by their composition, including coefficient of thermal expansion, water absorption, wear resistance, polymerization shrinkage, working and setting times, and curing characteristics. Fillers and higher filler contentComposite resins PART 1
Composite resins PART 1Shivani Raghuwanshi
油
This document provides an overview of composite resins. It discusses the history, definitions, indications, contraindications, composition, classification, curing methods, curing lamps, properties, placement techniques, and instruments used. Composite resins have evolved from traditional macrofilled composites in the 1950s to modern nanofilled and silorane-based composites. Their composition includes resin matrices, fillers, coupling agents, initiators, and inhibitors. Curing can be done chemically or with various light sources like halogen, plasma arc, laser, and LED lamps.Lube oils
Lube oilsMausam Patel
油
This document discusses different types of lubricating oils and their properties and uses. It describes how lube oils are classified based on their intended service, including machine oils, compounded oils, turbine oils, cold test oils, and others. Key tests for lube oils are described such as flash point, pour point, viscosity, oxidation stability, and carbon residue. Carbon residue tests like the Conradson and Ramsbottom methods are explained. The document also covers transformer oils, their classification and important tests like dielectric strength and sludge value. Brief descriptions of bitumens and paraffin and microcrystalline waxes are also provided.Merc feb16
Merc feb16kaiser kitay
油
Bitumen from kingdom of Bahrain .
we believe in offering the best quality Products ,please visit our web page to know more www.merc.company COMPOSITE RESINS.pptx
COMPOSITE RESINS.pptxShrimant Raman
油
1) Dental composites are resin-based materials reinforced with filler particles that are used for tooth-colored restorations. They have evolved from large macrofilled particles to smaller microfilled and nanofilled particles for improved esthetics.
2) Modern composites come in various types depending on their handling properties, including packable, flowable, and bulk-fill versions. They are also classified based on their filler sizes as macrofilled, microfilled, or hybrid.
3) Resin composites offer esthetic, conservative restorations but have disadvantages like polymerization shrinkage, sensitivity to technique, and relatively lower wear resistance compared to other materials. Continual development aims to improve their mechanical properties andMee X International
Mee X InternationalMeeX International LLC
油
MeeX International provides three distinct solutions: drilling solutions, flow control solutions, and rotating solutions. They service major oil and gas companies around the world. Their drilling solutions include wellheads, screens, completion tools, chemicals, and mud pumps. Recently uploaded (20)
Lesson Plan M1 2024 Lesson Plan M1 2024 Lesson Plan M1 2024 Lesson Plan M1...
Lesson Plan M1 2024 Lesson Plan M1 2024 Lesson Plan M1 2024 Lesson Plan M1...pinkdvil200
油
Lesson Plan M1 2024 Lesson Plan M1 2024 Lesson Plan M1 2024 
APM People Interest Network Conference - Tim Lyons - The neurological levels ...
APM People Interest Network Conference - Tim Lyons - The neurological levels ...Association for Project Management
油
APM People Interest Network Conference 2025
-Autonomy, Teams and Tension: Projects under stress
-Tim Lyons
-The neurological levels of
team-working: Harmony and tensions
With a background in projects spanning more than 40 years, Tim Lyons specialised in the delivery of large, complex, multi-disciplinary programmes for clients including Crossrail, Network Rail, ExxonMobil, Siemens and in patent development. His first career was in broadcasting, where he designed and built commercial radio station studios in Manchester, Cardiff and Bristol, also working as a presenter and programme producer. Tim now writes and presents extensively on matters relating to the human and neurological aspects of projects, including communication, ethics and coaching. He holds a Masters degree in NLP, is an NLP Master Practitioner and International Coach. He is the Deputy Lead for APMs People Interest Network.
Session | The Neurological Levels of Team-working: Harmony and Tensions
Understanding how teams really work at conscious and unconscious levels is critical to a harmonious workplace. This session uncovers what those levels are, how to use them to detect and avoid tensions and how to smooth the management of change by checking you have considered all of them.FESTIVAL: SINULOG & THINGYAN-LESSON 4.pptx
FESTIVAL: SINULOG & THINGYAN-LESSON 4.pptxDanmarieMuli1
油
Sinulog Festival of Cebu City, and Thingyan Festival of Myanmar.
Database population in Odoo 18 - Odoo slides
Database population in Odoo 18 - Odoo slidesCeline George
油
In this slide, well discuss the database population in Odoo 18. In Odoo, performance analysis of the source code is more important. Database population is one of the methods used to analyze the performance of our code. 
Kaun TALHA quiz Prelims - El Dorado 2025
Kaun TALHA quiz Prelims - El Dorado 2025Conquiztadors- the Quiz Society of Sri Venkateswara College
油
Prelims of Kaun TALHA : a Travel, Architecture, Lifestyle, Heritage and Activism quiz, organized by Conquiztadors, the Quiz society of Sri Venkateswara College under their annual quizzing fest El Dorado 2025. Useful environment methods in Odoo 18 - Odoo 際際滷s
Useful environment methods in Odoo 18 - Odoo 際際滷sCeline George
油
In this slide well discuss on the useful environment methods in Odoo 18. In Odoo 18, environment methods play a crucial role in simplifying model interactions and enhancing data processing within the ORM framework.The Constitution, Government and Law making bodies .
The Constitution, Government and Law making bodies .saanidhyapatel09
油
This PowerPoint presentation provides an insightful overview of the Constitution, covering its key principles, features, and significance. It explains the fundamental rights, duties, structure of government, and the importance of constitutional law in governance. Ideal for students, educators, and anyone interested in understanding the foundation of a nations legal framework.
APM People Interest Network Conference - Oliver Randall & David Bovis - Own Y...
APM People Interest Network Conference - Oliver Randall & David Bovis - Own Y...Association for Project Management
油
APM People Interest Network Conference 2025
- Autonomy, Teams and Tension
- Oliver Randall & David Bovis
- Own Your Autonomy
Oliver Randall
Consultant, Tribe365
Oliver is a career project professional since 2011 and started volunteering with APM in 2016 and has since chaired the People Interest Network and the North East Regional Network. Oliver has been consulting in culture, leadership and behaviours since 2019 and co-developed HPTM速an off the shelf high performance framework for teams and organisations and is currently working with SAS (Stellenbosch Academy for Sport) developing the culture, leadership and behaviours framework for future elite sportspeople whilst also holding down work as a project manager in the NHS at North Tees and Hartlepool Foundation Trust.
David Bovis
Consultant, Duxinaroe
A Leadership and Culture Change expert, David is the originator of BTFA and The Dux Model.
With a Masters in Applied Neuroscience from the Institute of Organisational Neuroscience, he is widely regarded as the Go-To expert in the field, recognised as an inspiring keynote speaker and change strategist.
He has an industrial engineering background, majoring in TPS / Lean. David worked his way up from his apprenticeship to earn his seat at the C-suite table. His career spans several industries, including Automotive, Aerospace, Defence, Space, Heavy Industries and Elec-Mech / polymer contract manufacture.
Published in Londons Evening Standard quarterly business supplement, James Caans Your business Magazine, Quality World, the Lean Management Journal and Cambridge Universities PMA, he works as comfortably with leaders from FTSE and Fortune 100 companies as he does owner-managers in SMEs. He is passionate about helping leaders understand the neurological root cause of a high-performance culture and sustainable change, in business.
Session | Own Your Autonomy The Importance of Autonomy in Project Management
#OwnYourAutonomy is aiming to be a global APM initiative to position everyone to take a more conscious role in their decision making process leading to increased outcomes for everyone and contribute to a world in which all projects succeed.
We want everyone to join the journey.
#OwnYourAutonomy is the culmination of 3 years of collaborative exploration within the Leadership Focus Group which is part of the APM People Interest Network. The work has been pulled together using the 5 HPTM速 Systems and the BTFA neuroscience leadership programme.
https://www.linkedin.com/showcase/apm-people-network/about/
QuickBooks Desktop to QuickBooks Online How to Make the Move
QuickBooks Desktop to QuickBooks Online How to Make the MoveTechSoup
油
If you use QuickBooks Desktop and are stressing about moving to QuickBooks Online, in this webinar, get your questions answered and learn tips and tricks to make the process easier for you.
Key Questions:
* When is the best time to make the shift to QuickBooks Online?
* Will my current version of QuickBooks Desktop stop working?
* I have a really old version of QuickBooks. What should I do?
* I run my payroll in QuickBooks Desktop now. How is that affected?
*Does it bring over all my historical data? Are there things that don't come over?
* What are the main differences between QuickBooks Desktop and QuickBooks Online?
* And moreHow to Configure Restaurants in Odoo 17 Point of Sale
How to Configure Restaurants in Odoo 17 Point of SaleCeline George
油
Odoo, a versatile and integrated business management software, excels with its robust Point of Sale (POS) module. This guide delves into the intricacies of configuring restaurants in Odoo 17 POS, unlocking numerous possibilities for streamlined operations and enhanced customer experiences.N.C. DPI's 2023 Language Diversity Briefing
N.C. DPI's 2023 Language Diversity BriefingMebane Rash
油
The number of languages spoken in NC public schools.Essentials of a Good PMO, presented by Aalok Sonawala
Essentials of a Good PMO, presented by Aalok SonawalaAssociation for Project Management
油
APM event hosted by the South Wales and West of England Network (SWWE Network)
Speaker: Aalok Sonawala
The SWWE Regional Network were very pleased to welcome Aalok Sonawala, Head of PMO, National Programmes, Rider Levett Bucknall on 26 February, to BAWA for our first face to face event of 2025. Aalok is a member of APMs Thames Valley Regional Network and also speaks to members of APMs PMO Interest Network, which aims to facilitate collaboration and learning, offer unbiased advice and guidance.
Tonight, Aalok planned to discuss the importance of a PMO within project-based organisations, the different types of PMO and their key elements, PMO governance and centres of excellence.
PMOs within an organisation can be centralised, hub and spoke with a central PMO with satellite PMOs globally, or embedded within projects. The appropriate structure will be determined by the specific business needs of the organisation. The PMO sits above PM delivery and the supply chain delivery teams.
For further information about the event please click here.Mate, a short story by Kate Grenvile.pptx
Mate, a short story by Kate Grenvile.pptxLiny Jenifer
油
A powerpoint presentation on the short story Mate by Kate Greenville. This presentation provides information on Kate Greenville, a character list, plot summary and critical analysis of the short story.Adventure Activities Final By H R Gohil Sir
Adventure Activities Final By H R Gohil SirGUJARATCOMMERCECOLLE
油
Adventure Activities Final By H R Gohil SirPrinciple and Practices of Animal Breeding || Boby Basnet
Principle and Practices of Animal Breeding || Boby BasnetBoby Basnet
油
Principle and Practices of Animal Breeding Full Note
|| Assistant Professor Boby Basnet ||IAAS || AFU || PU || FUHow to use Init Hooks in Odoo 18 - Odoo 際際滷s
How to use Init Hooks in Odoo 18 - Odoo 際際滷sCeline George
油
In this slide, well discuss on how to use Init Hooks in Odoo 18. In Odoo, Init Hooks are essential functions specified as strings in the __init__ file of a module.APM People Interest Network Conference - Tim Lyons - The neurological levels ...
APM People Interest Network Conference - Tim Lyons - The neurological levels ...Association for Project Management
油
Kaun TALHA quiz Prelims - El Dorado 2025
Kaun TALHA quiz Prelims - El Dorado 2025Conquiztadors- the Quiz Society of Sri Venkateswara College
油
APM People Interest Network Conference - Oliver Randall & David Bovis - Own Y...
APM People Interest Network Conference - Oliver Randall & David Bovis - Own Y...Association for Project Management
油
dental composites
- 3. OBJECTIVE Classification of composites Properties of composites Polymerization of composites Application of composites Advancement of composites Indirect composites
- 4. CLASSIFICATION OF COMPOSITES A/cTo Skinner Bayne & Hayman Classification A/cToViscosity Phillips & Lutz Classification
- 5. A/c To Skinner Traditional or conventional ----- 8-12 micron Small particle filled composite ----- 1-5 micron Microfilled composite --------- 0.4-0.9 micron Hybrid composite ----------- 0.6-1 micron Bayne & Hayman Classification Megafill----------- 1-2mm Macrofill-----------10-100 micron Midifill--------------1-10 micron Minifill--------------0.1-1 micron Microfill-------------0.01-0.1 micron Nanofill--------------0.005-0.01 micron
- 6. A/cToViscosity Flowable Composites Packable Composites Phillips & Lutz Classification Macrofilled Composites-------- 5-12 micron MicrofilledComposites--------- 0.04-0.1 micron Hybrid Composites--------------- 0.04 micron *Nanofills & Nanohybrid Composites *Microhybrid Composites
- 7. PROPERTIES OF COMPOSITES Coefficient of thermal expansion 3 times higher than normal tooth, micro fills show more . Water absorption high filler content lower is the water absorption. Wear resistance prone to wear, it is effected by size, shape & content of filler. Surface texture size & composition of filler determines smoothness. Radiopacity resins are translucent, fillers like barium, glass, strontium & zirconium makes it radiopaque. Solubility - there is no significant solubility , 0.5-1.1 mg/cm3 water solubility Polymerization shrinkage - shrinks while curing. C-factor its the ratio of bonded surface of restoration to unbonded surface, high value shows greater shrinkage. Aesthetics translucent, available in variety of shades.
- 8. POLYMERIZATION OF COMPOSITES It depend upon the following factors Curing time short exposure time cause accelerated ratio of curing which leads to substantial stress buildup Shade of composite dark shade require long curing time Distance & Angle b/w light source & Resin angle of source should be at 90 degree to resin, if angle diverges from 90 degree. Temperature composite curing would be less if they are taken but immediately from refrigerator. ResinThickness It should be ideally 0.5-0.1 mm for optimum polymerization of resin Inhibition Of Air O2 in air also effects the polymerization of resin. Intensity Of Curing Light for optimal results wavelength of light should range b/w 400-500 mm Type Of Filler micro fine composites are more difficult to cure than heavily loaded.
- 9. APPLICATION OF COMPOSITES TYPE OF RESTORATION RECOMMENDED RESIN COMPOSITE CLASS I CLASSV CLASSVI CERVICAL LESIONS &PEDIATRIC RESTORATIONS 3 UNIT BRIDGEOR CROWN ALLOY SUBSTRUCTURE CORE BUILD UP TEMPORARY RESTORATION HIGH CAVITY RESTORATION MULTIPURPOSE, NANOCOMPOSITE, PACKABLE MICROFILLED, COMPOMERS. PACKABLA NANOCOMPOSITES FLOWABLE,COMPOMER LABORATORY (FRC) LABORATORY (BONDED) CORE PROVISIONAL HYBRID COMPOSITE
- 10. ADVANCE COMPOSITES COMPOMERS OVMOCERS ANTIBACTERIAL COMPOSITES SMART COMPOSITES LAB COMPOSITES CORE- BUILD UP COMPOSITES SILORANE COMPOSITES
- 11. INDIRECT COMPOSITES It includes: FIBRE REINFORCED COMPOSITES CEROMERS
- 12. REFERENCES Textbook of operative dentistry by nisha garg Craigs restorative dental materials
- 14. THANK YOU