National Dental Assisting Examining Board (NDAEB) Practice Exam

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In dental terminology, what does "distoclusion" describe?

  1. Normal occlusion

  2. Class I relationship

  3. Class II relationship

  4. Class III relationship

The correct answer is: Class II relationship

The term "distoclusion" refers to a specific type of malocclusion, where the first molars of the lower jaw are positioned more toward the back of the mouth in relation to the first molars of the upper jaw. This results in a Class II occlusion, commonly characterized by the upper molars being more forward than the lower molars. Class II relationships typically involve the molars exhibiting a larger overlapped position, which can lead to issues such as increased wear and potential misalignment of the teeth. In the context of dental terminology, using "distoclusion" correctly identifies the relative positioning of the teeth and reflects understanding of malocclusion classifications. The other choices refer to different relationships that do not align with the description associated with distoclusion.

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