Questions and Answers
What is composite resin?
Direct filling restorative material
What is Class III?
Found only on anterior teeth (incisors and canines) proximal surfaces not involving the incisal angle
Where is the lesion typically found in Class III?
Gingival to the proximal contact area under a well-organized plaque
Which classes of caries may develop if flossing is skipped?
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What are the parts of a prepared cavity?
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What walls are found in a simple Class III?
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What are line angles in a Simple Class III?
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What is the incisal line angle?
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How is the incisal line angle different from the faciolingual line angle?
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What are the point angles in a Simple Class III?
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What is the special point angle in a Simple Class III?
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How do you gain access to the compound Class II prep?
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What are the walls of a compound Class III?
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What are the line angles of a compound Class III?
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What are the point angles in a Compound Class III?
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What are the 2 basic forms of Class V preparation?
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What internal wall does not exist in Class V?
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What are the 2 segments of a Class IV preparation?
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What is a Compound Class IV MI?
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What is a Compound Class IV DI?
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What are the walls of Compound Class IV MI on the incisal segment?
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What are the walls of Compound Class IV MI on the proximal segment?
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What are the preparation designs for Class III, IV, and IV?
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What is a conventional preparation design?
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What is the depth of retention grooves, undercuts or coves in dentin in conventional preparation design?
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What bur is used in placing undercuts in conventional preparation design?
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Where do you put the undercut in a Class III and Class V restoration?
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What is the depth of conventional preparation design in root surface?
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What materials are indicated for conventional preparation design?
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What was the first tooth-colored filling material invented by Fletcher in England in 1807?
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Where are composites used in a conventional preparation design?
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What is the Beveled Conventional Preparation Design?
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What is the width of bevel in a beveled conventional preparation design?
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What is the angle of bevel in a beveled conventional preparation design?
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When is a beveled conventional preparation design typically indicated?
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Study Notes
Composite Resin
- Direct filling restorative material.
Class III Restoration
- Found exclusively on anterior teeth (incisors and canines).
- Involves proximal surfaces (mesial and/or distal) without affecting incisal angle.
- Lesion typically presents gingival to the proximal contact area under well-organized plaque.
- Skipping flossing can lead to Classes II, III, and IV caries on proximal areas.
Cavity Preparation
- Prepared cavities consist of walls, line angles, and point angles.
- Types of walls in a simple class III restoration: labial/facial, lingual, gingival, and axial (no incisal wall).
- Six types of line angles exist in a simple class III restoration, including various labio and linguo combinations.
- Incisal line angle has unique nomenclature and is distinct from faciolingual line angle.
- Point angles in a simple class III include incisoaxial, facioaxiogingival, and other combinations.
Compound Class III Restoration
- Access to compound class II preparations is gained from the lingual aspect.
- Walls in a compound class III include incisal, facial, gingival, and axial walls.
- Line angles and point angles in compound class III have names related to their locations and orientation.
Class IV Preparation
- Preparation involves two segments: proximal and incisal.
- Compound Class IV MI lacks mesial and incisal walls.
- Compound Class IV DI lacks distal and incisal walls.
- Walls for compound Class IV MI on the incisal segment include distal, facial, lingual, and pulpal floor.
- Walls in the proximal segment of compound Class IV MI consist of facial, lingual, gingival, and axial walls.
Preparation Designs
- Types of preparation designs include conventional, beveled conventional, and modified designs, suitable for Classes III and IV.
- Conventional preparation design features butt-joint or right angle (90º) configurations.
- Depth of retention grooves in conventional designs is typically 0.5 mm and uses a 1/4 round bur.
- Conventional preparation designs are indicated for silicate cement, porcelain, amalgam, and composite resins.
- Silicate cement, the first tooth-colored filling material, was invented by Fletcher in 1807.
Beveled Preparation Design
- Similar to conventional design but includes beveled enamel margins, aiding in restoring existing restorations.
- The bevel in this design is typically 0.5 mm wide with an angle of 45 degrees.
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Description
Explore the essential terms related to composite materials and Class III restorations in dentistry. This quiz will help you understand key definitions and concepts applicable to dental restorative procedures. Ideal for dental students and professionals looking to enhance their vocabulary.