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No Longer Quivering

Examining ATI Wisdom Booklets: Part 1 Booklet 5 – Medical Teeth and Bruxism

Last updated on: September 19, 2016 at 5:30 pm by Suzanne Titkemeyer

I’m wondering if ATI somehow conned a dentist into writing this section because the anatomy section is unusually good.
- The only tricks I would add is having the students palpate the temporalis and masseter on themselves. To feel the temporalis, place your fingers on your temples gently. Clench your jaw and release a few times. The movement you feel in the temple is due to the temporalis muscle. To feel the masseter, place your fingers on the jaw about an inch below the ears and slightly forward. Clench and release the jaw to feel the masseter.

One concept that I worked diligently on when teaching high school was training students to be able to use common sense when looking at numbers. Let’s assume for a minute that 175 pounds per square inch is right.
- Does it seem logical that a person who is stressed could double (2x) the amount of force they apply to their teeth when stressed? IMHO, that seems reasonable for a maximum force on teeth although it may do damage over time.
- Does it seem logical that the force of a person who is stressed could increase by over five hundred times (500x)? No, that sounds insane.
Based on a desultory search of internet resources, I’ve found a maximum bite force of ~260 pounds per tooth in humans. The estimated bite force of a T. rex is 12,800 pounds per square inch. That means the top range of the human bite force listed by ATI is over seven times (7x) stronger than a T. rex which is completely implausible.

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