INBDE (Integrated National Board Dental Examination) Practice Exam

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Pell and Gregory Classification is used for the impaction of which teeth?

Mandibular 2nd molars
Mandibular 3rd molars
Maxillary canines
Maxillary 3rd molars

The correct answer is: Mandibular 3rd molars

The Pell and Gregory Classification is used specifically for the impaction of mandibular 3rd molars or wisdom teeth. Mandibular 2nd molars, maxillary canines, and maxillary 3rd molars do not follow this classification system for impaction. Therefore, options A, C, and D are incorrect. This classification is used to categorize the different levels and positions of impaction of mandibular 3rd molars, aiding in treatment planning and determining the difficulty of the extraction process.