ENT MCQ 027

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Ballenger's Otorhinolaryngology Head and Neck Surgery, 17th edition (Otorhinolaryngology: Head and Neck Surgery (Ballenger))The most common cause of oroantral fistula is:

a) acute sinusitis
b) car accident
c) dental extraction of upper second premolar tooth
d) radical antrum operation

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Category: ENT MCQs

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