INBDE (Integrated National Board Dental Examination) Practice Exam

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What are the Hawley with jackscrew and quad-helix/w-arch used to treat?

  1. Severe posterior crossbites

  2. Mild posterior crossbites

  3. Anterior open bites

  4. Class 3 malocclusions

The correct answer is: Mild posterior crossbites

Hawley with jackscrew and quad-helix/w-arch appliances are commonly used to treat mild posterior crossbites. These appliances can help in expanding the upper dental arch to correct the misalignment of the teeth and achieve a more balanced bite relationship. Regarding the other options: - Severe posterior crossbites are usually treated with more aggressive treatment options such as rapid maxillary expansion or orthognathic surgery. - Anterior open bites often require different types of appliances or treatment modalities to address the specific nature of the malocclusion. - Class 3 malocclusions are typically treated with a combination of orthodontic treatment and/or orthognathic surgery, depending on the severity of the malocclusion.

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