Questions and Answers
The internal surface of a cavity preparation positioned in the same vertical direction as the pulp within the tooth is called the ______.
Axial wall
A pitted area in a tooth caused by decay is known as a ______.
Cavity
The process of decay removal and tooth design in preparation for restoring a tooth is termed ______.
Cavity preparation
What is the function of convenience form in cavity preparation?
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Which of the following describes esthetic dentistry?
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What is meant by the term 'resistance form' in cavity preparation?
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What type of restoration involves lesions affecting the pits and fissures of a tooth?
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Why are retention pins sometimes used in restorations?
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Class II restorations are extensions of Class I restorations into the proximal surfaces of the teeth.
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What is the primary reason for placing an intermediate restoration?
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What are the two techniques for applying composite veneers?
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Name one type of tooth-whitening treatment.
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Study Notes
Dental Materials Overview
- Axial Wall: Internal surface of a cavity aligned vertically with the tooth's pulp.
- Cavity: A defect in a tooth due to decay.
- Cavity Preparation: Removal of decay and shaping of a tooth for restoration.
- Cavity Wall: Internal surface of the cavity.
- Convenience Form: Design element in cavity preparation for easier restoration access.
- Diastema: Space between two teeth.
Cavity Preparation Principles
- Outline Form: Initial design and depth determined by the dentist for effective restoration.
- Resistance Form: Involves shaping cavity walls to withstand forces during function.
- Retention Features: Placement of retention aids to secure the restoration.
- Accessibility: Ensures the tooth can be effectively prepared and restored.
Classes of Permanent Restorations
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Class I Restoration: Targets pits and fissures; prone to plaque accumulation.
- Involves premolars, molars, and anterior teeth’s lingual surfaces.
- Requires dentist assessment of occlusion for proper restoration.
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Class II Restoration: Extends to proximal surfaces; often necessitates amalgam or composite.
- Involves the occlusal surface for approach due to access difficulties.
- Requires a matrix system to hold restoration materials in place.
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Class III Restoration: Affects interproximal surfaces of incisors and canines.
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Class IV Restoration: Similar to Class III but includes incisal edges; requires aesthetic composite resins.
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Class V Restoration: Smooth surface lesions on facial/lingual gingival thirds; prepared with no angles.
Retention Pins in Complex Procedures
- Used when decay exceeds the limits of traditional retention methods.
- One pin typically required per cusp for stability.
- Alternative to grooves or bonding when significant tooth structure is compromised.
Intermediate Restorations
- Serve as a provisional measure to assess tooth health before permanent restoration.
- Commonly employed to allow time for permanent restoration or due to financial considerations.
Composite Veneers Application
- Veneers: Thin tooth-colored material for aesthetic enhancement.
- Direct Technique: Composite resin bonded directly to the tooth surface.
- Indirect Technique: Custom porcelain veneers prepared in a lab and cemented to the tooth.
Tooth-Whitening Procedures
- Various methods include in-office, at-home treatments, and over-the-counter products.
- Dental assistants play a key role in assisting with these procedures and patient education.
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Description
Test your knowledge on key terms and concepts related to dental materials as covered in Chapter 48 of General Dentistry. This quiz will help reinforce definitions and pronunciations relevant to cavity preparations and other essential terms. Prepare for your exam with these focused flashcards.