NBDE Quiz # 36
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NBDE Quiz # 36
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1. Question
What is the initial force direction with forceps placed on a tooth for a successful extraction?
CorrectThe correct answer is A. The initial force is apically directed to wedge the crestal bone and also moves the fulcrum toward the apex of the tooth reducing possibility of root fracture. Buccal and palatal movements are only secondary to the initial apical force. Occlusal force is never used in the extraction process.
IncorrectThe correct answer is A. The initial force is apically directed to wedge the crestal bone and also moves the fulcrum toward the apex of the tooth reducing possibility of root fracture. Buccal and palatal movements are only secondary to the initial apical force. Occlusal force is never used in the extraction process.