Dentistry and Prosthodontics Overview

Dentistry

• Encompasses the study and application of measures designed to prevent deterioration of the oral structures.
• Focuses on improving oral health through clinical procedures.
• Aims to relieve pain, treat oral disease, maintain masticatory efficiency, and restore esthetics.

Prosthesis

• Artificial replacement of a missing body part.

Prosthodontics

• Branch of dentistry concerned with restoration and maintenance of oral function, comfort, appearance, and health.
• Achieved through restoration of natural teeth or replacement of missing teeth and tissues with artificial substitutes.
• Two categories: removable and fixed.

Removable Prosthodontics

• Deals with replacing teeth and structures for edentulous or partially edentulous patients with removable substitutes.

Fixed Prosthodontics

• Concerned with restoration or replacement of teeth with non-removable artificial substitutes.

Crown

• Artificial replacement restoring missing tooth structure, surrounding the remaining structure with materials like cast metal, porcelain, or combinations.
• Aims to reproduce form and function of the tooth and potentially enhance appearance.
• An extracoronal restoration.

Full Veneer Crown

• Covers all surfaces of the clinical crown.
• Can be made entirely of metal, all porcelain, or a metal-ceramic combination.

Partial Veneer Crown

• Restores only a portion of the clinical crown.

Three-Quarter Crown

• Partial coverage cast crown that restores occlusal surfaces and all axial surfaces except the facial surface.
• Retained by grooves prepared on the proximal surfaces.

Reversed-Three Quarter Crown

• Modified ¾ crown with buccal surface prepared instead of the lingual surface.

One-Half Crown

• Partial coverage cast crown involving mesial surface, mesial halves of buccal and lingual surfaces, and half of the occlusal surface.
• Retained by buccal and lingual grooves.

Seven-Eighth Crown

• Extension of the three-quarter crown including a major portion of the facial surfaces, usually the disto-buccal cusp.
• Retained by buccal and mesial grooves.

MacBoyle Retainer

• Modified three-quarter crown with retention from two grooves at the labio-proximal line angles.
• Indicated for mandibular anterior teeth.

Pin-Ledge Retainer

• Partial coverage restoration retained by two ledges and three pins, two incisally and one gingivally.

Temporary Crown

• Crown made and used temporarily to protect the prepared tooth until the permanent crown is completed.

Intracoronal Restorations

• Replace missing tooth structure within the crown of the tooth.

Inlay Retainer

• Intracoronal cast restoration that restores proximal and occlusal surface of the tooth without covering the cusp.
• Used to support occlusal rest in fixed-supported bridges.

Onlay Retainer

• Modification of the inlay with cusp overlay on the occlusal surface to protect the integrity of remaining tooth structures.

This quiz covers the essential concepts of dentistry and prosthodontics, focusing on oral health, restoration, and maintenance of teeth. It delves into both removable and fixed prosthodontics, discussing crowns and artificial replacements for missing teeth. Test your knowledge on these crucial dental practices!