Class 1 composite preps

Question 1

What are the 6 treatment options?

Answer 1

1. Prevention and Reversal
2. Pit and Fissure Sealants - For High Risk
3. Preventative Resin Restoration - Lesions on Enamel
4. Conservative Composite Restoration
5. Conventional Composite Restoration
6. Amalgam Restoration

Question 2

Advantages of Composite Prep (6)

Answer 2

1. Esthetics
2. Conservative tooth structure removal
3. Easier tooth prep
4. Isolation
5. Decreased micro leakage
6. Increased short term strength of remaining tooth structure

Question 3

Disadvantages of composite prep (5)

Answer 3

1. Polymerization Shrinkage
2. Lower fracture toughness
3. More technique sensitive
4. Possible localized occlusal wear
5. Unknown Biocompatability (BPA_

Question 4

Sealant Treatment option

Answer 4

For incipient enamel pit and fissure caries that do not extent past the DEJ

Used for prevention in high risk

In children sealants are most effective when permanent teeth first erupt

Sealant material: Light Activated Urethane Dimethacrylate or Bis-GMA resins

Question 5

Preventative Resin Restoration Treatment Option “Conservative composite restoration”

Answer 5

Minimal Removal of tooth structure

Usually combined with foldable composite or sealant

Used when there is a high risk for subsequent caries

Treatment of choice for primary occlusal caries lesion

Question 6

Composite Restoration Treatment Option Class 1

Answer 6

Pit and Fissures that occur on occlusal surfaces of premolars and molars, 2/3 of buccal and lingual surfaces, and lingual surfaces of incisors.

Decay must be into Dentin

Question 7

Steps of a class 1 composite Prep

Answer 7

1. Create access to faulty structure
2. Removal of faulty structure
3. Creating Convenience form

Question 8

T/F Mechanical Retention is necessary for Class 1 Preps

Answer 8

False. Retention is obtained by bonding

Question 9

Small to Moderate Class 1 Prep

Answer 9

Use minimally invasive tooth prep that does not require typical resistance and retention

More flared cavosurface margin

No uniform, flat pupal or axial walls

“Scooped Out” appearance

Prepared with Small Round Bur

Initial depth: .2 mm inside DEJ

Question 10

When is composite more indicated and amalgam less?

Answer 10

Posterior pit and fissure cavities where amalgam use would cause more defects

Esthetic concerns

Adequate isolation for bonding CAN be achieved

Occlusal function forces are normal and well controlled

No Cost Concern

Question 11

Initial Clinical Procedures (5)

Answer 11

1. Double Check Findings
2. Anesthesia
3. Shade Selection - Value, Chroma, Hue
4. Occlusal Relationship - Check before prep
5. Isolation

Question 12

Tooth Prep Steps (3)

Answer 12

1. Create access to faulty structure
2. Removal of faulty structure
3. Creating Convenience form

Question 13

Burs to be used

Answer 13

Round 1 or 2

Pearl 329, 330

Question 14

Indications for moderate prep size

Answer 14

1. Tooth shows caries in mesial, central, and distal pits extending to DEJ on Xray
2. Enamel Undermining
3. Buccal, lingual Fissures are carious
4. Must leave at least 1.5 mm of tooth at the margins for premolars and 2 mm for molars

Question 15

Where do you normally do the first cut for your prep

Answer 15

at the most carious pit

align bur with the long axis of the tooth

Question 16

How should the bur be aligned for class 1 preps

Answer 16

With the long axis of the tooth

Question 17

T/F and wingless clamp is used for tooth 31

Answer 17

True