Back to Blog
Maine Comprehensive Pain Management
Can Botox help painful teeth grinding, clinching, and decrease TMJ pain?
April 29, 2026166 views
Yes, Botox (botulinum toxin) can be an effective treatment for teeth grinding (bruxism). Here's what you should know:
How it works
Botox is injected into the muscles around the jaw and temples. The primary muscles to inject are the large jaw muscles responsible for chewing and clenching. By partially relaxing these muscles, it reduces the force of grinding and clenching without affecting normal chewing or speaking.
What Botox can help with:
Reducing the intensity of grinding, particularly at night
Relieving jaw pain, spasm, tension, and headaches caused by bruxism
Slowing down tooth wear
Easing TMJ (temporomandibular joint) discomfort
Reducing jaw soreness in the morning
What to expect:
Results typically kick in within 1–2 weeks and last around 3 months, after which repeat injections are needed. Botox can take up to 3 rounds to take an effect. Over time, some people find the masseter muscle naturally weakens a little. A side effect some people actually welcome is a slimming of the jawline, as the masseter shrinks slightly with reduced use.
Limitations. Botox treats the symptoms rather than the underlying cause of bruxism (which is often stress, sleep disorders, or bite issues).