California Registered Dental Assistant (RDA) Written Practice Exam

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At what phase of orthodontics would a pediatric dentist intercede in getting a patient to stop sucking his or her thumb?

  1. Diagnostic

  2. Preventive

  3. Corrective

  4. Interventional

The correct answer is: Preventive

A pediatric dentist would intervene in this situation during the preventive phase of orthodontics. During this phase, the focus is on preventing future problems and establishing good oral habits. Options A, C, and D are incorrect because they do not align with the goal of preventing future problems and instead focus on diagnosing, correcting, and intervening in existing issues. The preventive phase is often the best time for a dentist to address habits such as thumb sucking, as it can prevent potential misalignment and damage to the teeth and jaw.

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