INBDE (Integrated National Board Dental Examination) Practice Exam

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Which Miller class is ideal for regenerating recession defects?

  1. Miller Class 1

  2. Miller Class 2

  3. Miller Class 3

  4. Miller Class 4

The correct answer is: Miller Class 1

Miller Class 1 is ideal for regenerating recession defects because it involves recession with no loss of interdental bone or soft tissue. In this case, the gingival margin is within the mucogingival junction, offering a better opportunity for regeneration and successful treatment outcomes. Options B, C, and D involve varying degrees of bone and soft tissue loss, making them less ideal for regeneration of recession defects compared to Miller Class 1.