Which is/are true regarding bruxism? 1. Stress is not a factor in the etiology of TMD. 2. Stress is associated with an increase in bruxism. 3. There are two separate categories of
bruxism: sleep bruxism and awake bruxism. 4. Certain medications can cause an increase
in bruxism.

1. Stress is not a factor in the etiology of TMD. TRUE.

2. Stress is associated with an increase in bruxism. TRUE.

3. There are two separate categories of bruxism: sleep bruxism and awake bruxism. TRUE.

4. Certain medications can cause an increase in bruxism. TRUE.

Explanation:

1.  Stress can definitely contribute to TMJ, or even be a direct cause of TMJ. This is because stress is thought to be a big factor that contributes to grinding and clenching, also known as “bruxism.”

2. In particular, bruxism seems to be more severe during periods of heightened stress and anxiety.

3. Awake bruxism (AB) and sleep bruxism (SB) are considered to be two different behaviours observed during wakefulness and during sleep.

4. Certain medications increase the risk of bruxism, so sometimes a prescription change could be all it takes to ​resolve the condition.