This document provides an overview of trauma from occlusion including:
- Definitions from various dental organizations
- Etiology and types of occlusal forces that can cause trauma
- Historical perspectives on the study of occlusion and trauma
- Terminologies used to describe occlusal trauma
- Stages of tissue response to excessive occlusal forces
- Signs and symptoms of trauma from occlusion
- Classification systems for trauma from occlusion
- Examination and diagnosis techniques
- Radiographic signs of trauma
- Debate around reversibility of traumatic occlusion
- Considerations for trauma around dental implants
- Treatment approaches including occlusal adjustments and splinting
2. CONTENTS
DEFINITION
ETIOLOGY
HISTORICAL PRESPECTIVE
TERMINOLOGIES WHICH HAVE BEEN USED TO
DESCRIBE OCCLSAL TRAUMA
REVIEW OF LITERATURE
OCCLUSAL FORCES DURING JAW MOVEMENTS
CLASSIFICATION
STAGES OF TISSUE RESPONSE TO EXCESSIVE
OCCLUSAL FORCES
EXAMINATION AND DIAGNOSIS
3. RADIOGRAPHIC SIGNS
IS TRAUMATIC OCCLUSION REVERSIBLE?
TRAUMA FROM OCCLUSION ARROUND
IMPLANTS
OUR PRESENT UNDERSTANDING
TREATMENT
5. ETIOLOGY
Precipitating factors (Primary etiology)
Destructive occlusal forces
Magnitude of force Direction of force
Frequency of force Duration of force
Predisposing factors
Development of TFO indirectly
Intrinsic factors Extrinsic factors
6. Types of Occlusal Forces
Normal physiological forces
Impact forces
Continuous forces
Jiggling forces
8. TERMINOLOGIES WHICH HAVE BEEN USED TO
DESCRIBE OCCLUSAL TRAUMA
Stillman 1917
Box 1930
Ramfjord & Ash 1972
Muhlemann 1956 Traumatogenic occlusal situation
Orban 1958 & Pichard 1965 Periodontal traumatism
Glickman 1974 Trauma from Occlusion
Traumatic occlusion
9. REVIEWOF LITERATURE
Stillmann 1917
AUTOPSY STUDIES:
Weinman et al
Glickmans Concept:-
Glickman & Smulow (1962,1969)
Glickman (1963,1965) Theory of Co-destruction
11. Waerhaugs Concept
ANIMAL STUDY:
Rochester Group (Polson & Co-workers)
Gothenburg Group (Lindhe & Co-workers)
HUMAN TRIALS:
Burgett et al 1992
Shefter GJ & Philstrom BL
McGuire MK & Nunn ME
13. CLASSIFICATION
Acute Trauma From Occlusion
Chronic Trauma From Occlusion
Primary Trauma From Occlusion
GPT, AAP 1992
Polson AM, 1976
Secondary Trauma From Occlusion
GPT, AAP 1992
14. STAGES OF TISSUE RESPONSE TO EXCESSIVE
OCCLUSAL FORCES
Carranza (1967, 1970)
I. Stage I, Injury
Slightly excessive forces Zaki AE,1963
Greater than slightly excessive force Rygh P,1972-
1974)
Severly high forces Stallard,1964 & Stahl SS,1975)
II. Stage II, Repair
Buttressing Bone Formation Glickman & Smulov,
1965
Lipping - Glickman & Smulov, 1962
15. III. Stage III, Adaptive Remodelling of the Periodontium
Lindhe & Ericsson, 1984
Carranza & Dotto, 1966
17. EXAMINATION AND DIAGNOSIS
Signs of Trauma From Occlusion
Tooth Mobility
Tooth Migration
Wear Patterns
Abfraction, especially in premolars
V-Shaped or Angled Gingival Recession
Fremitus Test Ingervall B, 1972
18. Symptoms of Trauma From Occlusion
Persistent Discomfort on Eating
Thermal Sensitivity
Muscle Hypertonicity
24. REFERENCE
Role Of Occlusion In The Etiology And Treatment, Of Periodontal Disease,
IRVING GLICKMAN, Tufts University School Of Dental Medicine, Boston,
Massachusetts 02111, USA.
Radiographs In Periodontics, Niklaus P. Langi And Roger W. HILLS, Journal Of
Clinical Periodontology: 1977: 4: 16-28.
The Infrabony Pocket And Its Relationship To Trauma From Occlusion And
Subgingival Plaque By Jens Waerhaug.
Role Of Occlusion In Periodontal Disease, Euloir Passanezi, Adriana Campos
Passanezi Sant'ana.
Association Of Trauma From Occlusion With Localized Gingival Recession In
Mandibular Anterior Teeth Pratibha Panduranga Kundapur, Khandige Mahalinga
Bhat, And Giliyar Subraya Bhat, Dent Res J (Isfahan). 2009 Autumn; 6(2): 7174.
Occlusal Trauma And Excessive Occlusal Forces: Narrative Review, Case
De鍖nitions, And Diagnostic Considerations Jingyuan Fan Jack G. Caton.
Clinical Diagnosis Of Trauma From Occlusion And Its Relation With Severity Of
Periodontitis L. J. Jtn And C. F. Cao.