INBDE (Integrated National Board Dental Examination) Practice Exam

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An average tooth pierces gingiva with how much root formation?

  1. 1/2

  2. 2/3

  3. 3/4

  4. Complete

The correct answer is: 3/4

An average tooth pierces the gingiva with about 3/4 or 75% of its root formation. This is because the root of a tooth grows and matures at different rates, with the front teeth typically having shorter roots than the back teeth. Options A, B, and D are incorrect because 1/2, 2/3, and a complete root formation do not accurately reflect the average amount of root formation for a tooth piercing the gingiva. It is important to note that this measurement may vary slightly depending on the individual's tooth development and anatomy.

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