NBDE Q uiz # 20
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NBDE Quiz # 20
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1. Question
Nonrigid splints are recommended for all of the following situations except:
CorrectThe correct answer is D. With dental root fractures of the apical or mid-root, the tooth should be reimplanted and a rigid splint placed for 2 to 3 months. Subluxation is trauma to a tooth that causes mobility without displacement from the tooth socket. Avulsion of a tooth from a socket less than 30 minutes should be placed in a nonrigid splint after reimplantation. Compared with rigid splints, this will have less chance of causing ankylosis. Thinner wire will allow for physiologic dental movement, whereas thicker wire will act more like a rigid splint and predispose tooth to ankylosis.
IncorrectThe correct answer is D. With dental root fractures of the apical or mid-root, the tooth should be reimplanted and a rigid splint placed for 2 to 3 months. Subluxation is trauma to a tooth that causes mobility without displacement from the tooth socket. Avulsion of a tooth from a socket less than 30 minutes should be placed in a nonrigid splint after reimplantation. Compared with rigid splints, this will have less chance of causing ankylosis. Thinner wire will allow for physiologic dental movement, whereas thicker wire will act more like a rigid splint and predispose tooth to ankylosis.