Do you Clench or Grind your teeth
Any strength training that causes you to clench, or grind your teeth can cause problems with your teeth in the long run. Clenching or grinding is one of the culprits behind temporomandibular joint disorder (TMJD), cold and heat sensitivity, sore jaws, chipping and stress fractures in the teeth. Stress fractures are caused by chronic trauma, not just one strong blow, and go through stages. The teeth tend to show increasingly aggravated symptoms usually correlated to the depth of the stress fracture.
Permanent Damage to Teeth
During strength training, or other exercise, it's important to take care of your entire body, including your teeth. Oral hygiene is a priority, as well as the use of a mouthguard for clenching and grinding. If you don’t want to use a mouthguard be aware of your teeth clenching or grinding, and try to minimize it as much as possible.