INBDE (Integrated National Board Dental Examination) Practice Exam

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What does Miller mobility class 0 indicate?

  1. normal

  2. slightly more than normal

  3. <1mm

  4. >1mm and can be vertically depressed in socket

The correct answer is: normal

Miller mobility class 0 indicates a normal level of tooth mobility. This means that there is no abnormal loosening or mobility of the tooth when the dentist examines it clinically. In Miller mobility classification, class 0 is considered the ideal and normal state for a tooth, indicating that the tooth is stable within its socket and shows no mobility beyond what is expected under normal circumstances. Options B, C, and D describe varying degrees of abnormal mobility, which are not indicative of a Miller Class 0 mobility.