trying the dentures in the mouth
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sources of information mainly from these 2 books, 1- Fenn, Liddelow, and Gimsons' Clinical Dental Prosthetics 2- Yasemin K. zkan, Complete denture:ProsthodonticsTreatment and Problem Solving,2017.
trying the dentures in the mouth
- 9. Retention
- 10. Centric relation or retruded contact position)
- 12. Note that
- 19. Note that due to the difficulty of seeing the functional depth of the lingual sulcus when the denture is in place , over trimming may occurs .
- 22. : In order to support or buttress the denture fromPurpose the backward pressure of the lower lip.
- 28. Raising the denture indicates cramped tongue Raising the denture indicates lingual flange over extension
- 29. Alternative
- 34. Occlusal plane should be at the same level as the dorsum or as we said slightly below when the patient is in the rest position.
- 42. It is checked by seating the denture on the denture-bearing area and then attempting to remove the denture at right angles to the occlusal plane. Load is then applied upwards and outwards in the region of the anterior teeth to check for retention.
- 54. When errors of occlusion are noted at this trial stage they must be corrected by re-recording the position of occlusion and then clinical remounting the cast according to new mouth record. *errors of occlusion such as Correction of centric occlusion/ relation / horizontal relation disharmony
- 55. A new recording of centric relation position should be obtained after the posterior teeth from one of the dentures have been removed and replaced with a wax occlusion rim which should be trimmed to occlude with the posterior teeth of the other denture without altering the VD . If the teeth are not removed there is danger that the cups will guide the mandible back into an incorrect tooth position.
- 56. 悋愕悋惡 悋愕悋惆 惠惷忰 惶惘悸盒潮
- 58. After the correct position of occlusion is recorded by adding little softened base-plate wax to the chilled blocks , the trial dentures are then placed in the mouth and the patient is asked to ((close on the back teeth )) thus impressing the cusps of the opposing teeth into the wax .
- 59. Finally, remounting the cast according to new mouth record.
- 63. Just to remember
- 76. Size of the teeth Shade of the teeth Patient approval of the appearance
- 83. Size of the teeth The teeth size ratios should be pleasing, and each tooth should be of the correct size. Size of anterior teeth Should harmonize with facial Contour. The labial surfaces of teeth should be neither too flat nor too convex (Fig. 3.33a, b)
- 84. It could be helpful to make use of the patients profile when determining the convexity of the teeth (Fig. 3.33c)
- 85. shade of the teeth There should be a comparison made between the color of the face and the teeth. The teeth should be checked to ensure the color of the teeth is warm and correct. The dentist must take care to confirm that the teeth will not look lighter by arranging the teeth buccally out of the arch, or will not appear darker by arranging them palatinally.
- 86. Today, yellow is the most dominant shade in most of the shade guides. Other colors have a smaller part.
- 87. Profile and lip support ( forward) ( backward) The average of sagittal angle between the lips and columella (naso-labial angel) is 90 degree in the normal class 1 relation. (a) Class 1. (b) Class 2. (c) Class 3
- 90. -The incisal edges of upper incisor teeth should be parallel to the lower lip
- 91. ** When the mouth is slightly opened, the incisal tip of the natural mandibular canine and buccal cusp of the first premolar are positioned at the commissures (corners of the mouth) at the level of the lower lip.
- 99. approval of the appearance by the patient