CSL 9 Restoration (hard)

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Questions and Answers

What is the primary function of a spoon excavator in dental restorations?

To polish teeth

To drill into hard enamel

To apply temporary crowns

To remove carious dentin (correct)

The high-speed handpiece is used for polishing and finishing procedures.

False

What is meant by 'selective removal' of carious tissue?

Selective removal refers to removing different degrees of carious tissue in the peripheral and pulpal areas based on the depth required for a stable restoration.

The _______ is the part of the bur that cuts, polishes, or finishes.

head Signup and view all the answers

Match the following types of bur to their respective characteristics:

Straight bur = Fits into straight slow-speed handpiece Latch-type bur = Fits into contra-angle slow-speed handpiece Regular bur = Available in various shapes and sizes Friction grip bur = Commonly used for high-speed handpieces Signup and view all the answers

Which of the following is NOT a method for caries excavation mentioned?

Superficial scraping Signup and view all the answers

A high-speed handpiece operates at speeds of 1,000 to 10,000 rpm.

False Signup and view all the answers

The _________ pressure and brushing strokes should be applied when using the low-speed handpiece.

light Signup and view all the answers

What is the primary factor that affects the overall clinical performance of adhesive restorations?

Skilled operator and case selection Signup and view all the answers

Resin-based composites are more forgiving than amalgam when it comes to handling and placement.

False Signup and view all the answers

What type of bur is specifically used for surgical procedures?

Bur with long shank Signup and view all the answers

The mechanism that tightens the bur into the handpiece can be a __________, lever, or push button.

chuck Signup and view all the answers

Match the following types of restorative materials with their characteristics:

Composites = Used for aesthetic restorations Glass ionomers = Release fluoride Stainless steel crowns = Durable for primary teeth Resin-modified glass ionomers = Better adhesion and aesthetics Signup and view all the answers

What is required for the proper application of resin-based composites?

Knowledge of adhesives and polymerization kinetics Signup and view all the answers

Adhesive materials are more flexible compared to amalgam when placed incorrectly.

False Signup and view all the answers

The term used for restorative materials that are sensitive to technique is __________ restorations.

adhesive Signup and view all the answers

Study Notes

Primary Tooth Restoration

Stage 1: Acute Treatment
- Cavities are excavated and filled with temporary cement
- Necessary extractions and emergency endodontic treatment are performed
Stage 2: Caries Disease Management
- Patient's diet history is evaluated and counseling provided
- Salivary and bacteriological tests are conducted
- Oral hygiene instructions and plaque control are given
- Topical fluoride application is included
Stage 3: Restorative Treatment (Operative)
- This stage involves permanent restorations.
Stage 4: Risk Assessment and Follow-up
- Risk factors are assessed
- A follow-up program is implemented

Choice of Restoration

The type of restoration for primary teeth depends on:
- The specific tooth to be restored
- The patient's past caries history
- The level of cooperation from the child

Restoration Techniques

Conventional Technique (G.V. Black):
- Cavities are prepared using extension for prevention techniques and are filled.
Tooth Substance Saving Preparations (Microdentistry):
- Pits and fissures are prepared
- Focus on preventing the spread of cavities
- Filling without drilling
- Examples of this includes laser and air abrasion procedures
- Chemomechanical caries removal

Important Considerations for Primary Teeth

Enamel and dentin are thinner in primary teeth than permanent teeth.
Primary teeth pulps are larger relative to the crown size compared to permanent teeth
Pulp horns in primary molars are more prominently positioned near the outer tooth surface.
Enamel rods in the crown of the gingival third of primary teeth extend in an occlusal direction from the dentin-enamel junction, unlike permanent teeth that extend in a cervical direction.
Primary teeth show significant constriction in the crown and have a more prominent cervical contour compared to permanent teeth.
Primary teeth exhibit broader, flatter proximal contact surfaces.
Primary teeth are typically whiter in color compared to permanent successors.
Steps in Treatment
- Local Anesthesia (LA) administration
- Isolation of the affected area (RD/Isolation)
- Order of restorations
- Steps of caries excavation
- Restoring the tooth
- Types of restorations (Interim and Permanent)
Caries Excavation
- Different levels of caries removal exist, including complete (nonselective), partial, incomplete, ultraconservative, and no caries removal.
- "Selective removal" implies varying levels of removal in different areas (peripheral and pulpal) depending on the depth of the decay, ensuring a stable restoration and no pulp exposure.
Hand instruments and rotary instruments can be used during caries excavation
Handpieces
- The low-speed handpiece (500 to 15,000 rpm) is commonly used for caries removal and polishing.
- A high-speed handpiece (100,000 to 300,000 rpm) can be used with coolant for more aggressive cutting; intermittent cutting is recommended to prevent heat generation.
Instruments
- Spoon excavators, burs.
Restorations
- Different materials suitable for pediatric patients, such as composites, compomers, resin-modified glass ionomers, glass ionomers, and Stainless steel crowns (SSC).
- Distinctions exist regarding the number of tooth surfaces involved, such as one-surface and two-surface restorations.
Additional Considerations
- Adhesive restorations require meticulous technique, case selection, and skilled operators
- Proper application of resin-based materials involves understanding adhesive systems, composites, polymerization kinetics
- These materials are less forgiving to placement errors compared to amalgam.

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Description

Test your knowledge on the primary functions of dental instruments, including the spoon excavator and high-speed handpiece. This quiz will cover essential terminology and practices in dental restorations. Perfect for dental students and professionals seeking to reinforce their understanding of these tools.