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Denture Bases PowerPoint Presentation

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About This Presentation

Description : Check out this medical presentation on Dental Acrylic Resin, which is titled "Denture Bases", to know about denture bases which support and retain denture teeth, distribute stress distribution and improve esthetics. Materials used for denture bases include Acrylic Resin and Metal.

Tags : Dental Acrylic Resin, Denture Bases, Metal

Published on : Jul 01, 2021 | Views : 2023 | Downloads : 3

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Slide 1-

DENTURE BASES
Slide 2-

Functions Support & retain denture teeth Stress distribution - surface area Improve esthetics
Slide 3-

Materials Acrylic Resin Metal
Slide 4-

Acrylic Resin Bases Most common type Allows relining of the base to maintain mucosal support
Slide 5-

Advantages Esthetically superior to metal Ease of repair
Slide 6-

Disadvantages Dimensional stability - warpage Lower strength/wear resistance than metal Porous - hygiene Low thermal conductivity
Slide 7-

Metal Bases Small edentulous spaces no room for gridwork Less esthetic (metal show through)
Slide 8-

Beaded Metal Base
Slide 9-

Metal Filled Space
Slide 10-

Retentive Posts
Slide 11-

Advantages Thermal conductivity Swallowing hot substances Improved thermal perception
Slide 12-

Advantages Accuracy & Dimensional Stability Minimal warpage (casting imbibtion) Minimal need for posterior palatal seal Minimal abrasion
Slide 13-

Advantages Hygiene Metal less porous than resin Less food, plaque & calculus accumulation
Slide 14-

Advantages Weight and Bulk Metal bases can be cast thinner than resin bases while maintaining adequate strength
Slide 15-

Flange Extension Tooth- tissue supported partial dentures Extend maximally for support & retention No overextension or impingement on movable border tissues
Slide 16-

Flange Extension Class I & II RPD’s Posterior extension same as a complete denture Hamular notches, retromolar pads
Slide 17-

Flange Extension Soft Tissue Undercuts
Slide 18-

Acrylic Resin Finish Lines Internal & external finish lines should not coincide
Slide 19-

Replacement Teeth Acrylic denture teeth Cause less attrition than porcelain Easier to arrange, modify & adjust
Slide 20-

Replacement Teeth Tooth Form Harmonize with adjacent teeth Shade, shape, length, width & occlusal form Occlusion almost always requires adjustment
Slide 21-

Video Clips Cl III Path of Insertion Cl IV Path of Insertion
Slide 22-

Replacement Tooth Modification
Slide 23-

Occlusal Scheme Varies from fully balanced (opposing a complete denture), to anterior disclusion As more of occlusal table is involved, the more a balanced occlusal scheme may be of benefit