Prosthodontics

Material Selection for Pontics Material Advantages Limitations Porcelain fused to metal (PFM) Strong, esthetic, durable May show metal margins over time All-ceramic Superior esthetics Brittle in long spans Zirconia High strength + esthetics Technique-sensitive Metal (Gold/Alloy) Excellent fit and longevity Poor esthetics High Yield Pontic for maxillary premolar: Modified …

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…

Applegate's Classification is a system used to categorize edentulous (toothless) arches in preparation for denture construction. The classification is based on the amount and quality of the remaining alveolar ridge, the relationship of the ridge to the residual ridges, and the presence of undercuts. The system is primarily used in the context of complete denture prosthodontics to determine the best approach for achieving retention, stability, and suppo…

Most Tested Anatomical Points Retromolar pad contents - specific muscle composition Coronoid process influence - distobuccal border limitation Levator anguli oris - buccal frenum muscle Masseteric notch formation - muscle relationship Critical Impression Concepts Glossy wax = proper tissue contact Butt joint = inadequate flow/seal Addition silicone = submucous fibrosis material Snow shoe effect = support enhancement Functional Relationsh…

→ Following rules should be considered to classify partially edentulous arches, based on Kennedy's classification. Rule 1: → Classification should follow, rather than precede extraction, that might alter the original classification. Rule 2: → If 3rd molar is missing and not to be replaced, it is not considered in classification. Rule 3: → If the 3rd molar is present&n…