INBDE (Integrated National Board Dental Examination) Practice Exam

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Ace your INBDE with our comprehensive practice exam. Featuring detailed explanations, interactive flashcards, and a wide array of multiple-choice questions designed to mirror the real test. Get ready to surpass your expectations!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

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What is the ideal overbite percentage in permanent dentition?

0-10%
10-20%
20-30%
30-40%

The correct answer is: 10-20%

The ideal overbite percentage in permanent dentition ranges from 10% to 20%. This is because an overbite of 0%-10% can lead to underbite, where the lower teeth bite in front of the upper teeth, causing difficulty in chewing and speaking. On the other hand, an overbite of 20%-30% or more can cause a deep bite, where the upper teeth excessively overlap the lower teeth, leading to jaw pain and worn down teeth. Therefore, an overbite percentage of 10-20% is considered optimal for proper bite and jaw function. Options A, C, and D are incorrect as they either do not provide enough overlap of the upper teeth over the lower teeth or have too much overlap. Option A may not provide enough support for the upper teeth, while options C and D can cause strain on the jaw and teeth. Additionally, option C may lead to an increased risk of trauma to the front teeth. Therefore, B is the best option as it allows for the ideal balance of bite and jaw function in permanent dentition.