Prosthodontics

Anatomy of Maxilary Edentulous Ridge LIMITING STRUCTURES A) Labial & buccal frenum - Fibrous band covered by mucous membrane. - A v-shaped notch (labial notch) should be provided very carefully which should be narrow but deep enough to avoid interference - Buccal frenum has the attachment of following muscles; levator anguli  - It needs greater clearance on buccal flange of the denture (shallower and wider) than the labial frenum. B) La…

Topic Key Answer Clinical Pearl Retromolar pad Superior constrictor + Buccinator + Temporal tendon Posterior extension landmark Distobuccal border Coronoid process Limits lateral extension Food lodgement Decreased flange length Extend borders adequately PPS function Retention via partial vacuum Seals against soft palate Submucous fibrosis Addition silicone Best flow properties …

Food Lodgement Primary Causes Decreased flange length: Inadequate extension of denture borders Poor peripheral seal: Gaps between denture border and tissues Inadequate tissue contact: Loss of intimate adaptation over time Solutions Adequate border extension: Proper flange length to engage functional depth Border molding: Dynamic impression techniques for accurate peripheral seal Tissue conditioners: Temporary improvement of tissue …