California Registered Dental Assistant (RDA) Written Practice Exam

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When a person's tooth is not properly aligned with its opposing tooth, it is referred to as

  1. Open bite

  2. Underbite

  3. Cross bite

  4. Overjet

The correct answer is: Cross bite

When a person's tooth is not properly aligned with its opposing tooth, it is referred to as a cross bite. This option is incorrect because it refers to the horizontal positioning of the teeth, rather than the vertical positioning which is what causes an open bite. An underbite is when the lower teeth are positioned in front of the upper teeth, and an overjet is when the upper teeth protrude out further than the lower teeth. These options are also incorrect as they do not describe misalignment between opposing teeth.

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