Critical Thinking 1. You are assisting in a class || composite restorative proce

Question

Critical Thinking 1. You are assisting in a class || composite restorative procedure on tooth # 12. The preparation is moderately deep and has extended into the dentin. The dentist indicates to set cut additional materials for the procedure. What base material would be contraindicated for his procedure? 2. Three types of base materials are discussed in this chapter. You are assisting in a procedure that requires a base that is nonirritating and provides protection and insulation. Which of the three would most likely be selected? 3. You are assisting in a four-surface amalgam procedure on tooth #30. The preparation becomes very deep. Describe the supplemental materials that would be set out for this procedure, and give the order in which they would be placed. 4. Describe how the design of a preparation relates to the types of supplemental materials used in restorative dentistry. 5. Are any of the procedures in this chapter considered an "expanded function" for dental assistants in your state? If so what additional techniques do you find are important for you as the operator?

Explanation / Answer

1. The additional base material are as following.

Resin-modified glass ionomer mate

Excessive wedging forces

Flowable composites

2. the base materials are-

OptraMatrix (Ivoclar Vivadent) ), used with Tofflemire retainer or Omni-Matrix (Ultradent), attached to plastic matrix

Ho Band (Young Dental), used with Tofflemire retainer

Hawe SuperCap (Kerr), “auto-retaining

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