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!

Practice this question and more.

How much dB can potentially cause hearing loss over time?

75 dB
85 dB
90 dB
100 dB

The correct answer is: 90 dB

Exposure to loud noise can cause permanent damage to the sensitive structures of the inner ear, leading to hearing loss. The higher the decibel (dB) level, the shorter amount of time it takes for damage to occur. While 75 dB can begin to cause some harm after 8 hours of exposure, 85 dB can cause damage after only 2 hours. 90 dB can cause damage after only 30 minutes of exposure, making it the correct answer as the amount of time spent exposed to that level of noise can have a significant impact on the potential for hearing loss over time. This means that options A, B, and D are incorrect as they have a lower dB level and therefore a longer exposure time before reaching the same level of harmful impact.