What pattern is commonly associated with bruxism in the context of TMD?

What pattern is commonly associated with bruxism in the context of TMD?

• A. Daytime clenching and nighttime grinding.
• B. Only nighttime movements.
• C. No effect on TMJ.
• D. Causes increased appetite.

Answer: (B)

Bruxism is a parafunctional activity of the jaw muscles that often spans both wakefulness and sleep. In TMD, the pattern most commonly seen involves daytime clenching and nighttime grinding. Daytime clenching often occurs with stress or concentration, while nighttime grinding happens unconsciously during sleep, together placing repetitive load on the TMJ and masticatory muscles and contributing to pain, muscle fatigue, and wear. The other options don’t fit: bruxism is not limited to nighttime movements, it can affect the TMJ, and it has nothing to do with appetite.

Bruxism is a parafunctional activity of the jaw muscles that often spans both wakefulness and sleep. In TMD, the pattern most commonly seen involves daytime clenching and nighttime grinding. Daytime clenching often occurs with stress or concentration, while nighttime grinding happens unconsciously during sleep, together placing repetitive load on the TMJ and masticatory muscles and contributing to pain, muscle fatigue, and wear. The other options don’t fit: bruxism is not limited to nighttime movements, it can affect the TMJ, and it has nothing to do with appetite.