Stainless steel crowns Presentation1.pptx

STAINLESS STEEL CROWN

1. Difficulty in seating a stainless steel crown following the preparation of a primary molar is most likely a result of A. inadequate lingual reduction. B. “ ledging ” at the gingival area of the preparation. C. supraeruption of the opposing molar. D. impingement of gingival tissue under the crown margin.

2. After placement of the rubber dam you notice that the interdental papilla is protruding from beneath the rubber dam. The reason for this is That A. a rubber dam frame was used. B. the holes were placed too far apart. C. a light weight dam was used. D. the holes were placed too close together. E. the teeth were not individually ligated .

3. The most appropriate restoration for a primary molar with extensive carious destruction of the crown is a A. posterior composite resin. B. pin retained amalgam. C. stainless steel crown. D. glass ionomer .

4. A child has received a successful inferior alveolar nerve block using 1.5ml of lidocaine 2 % with 1:100000 epinephrine. However, during placement of a rubber dam clamp on the first permanent molar, the child complains that the “tooth ring” is hurting. Which of the following is the most appropriate management ? A. Wait 15 minutes until more profound anesthesia is achieved. B. Anesthetize the lingual nerve with the remaining lidocaine . C. Anesthetize the long buccal nerve with the remaining lidocaine . D. Proceed with treatment without rubber dam .