A dentist can do quite a lot for TMJ disorders, ranging from custom mouth guards and medication to muscle-relaxing injections and bite adjustments. Most treatment starts conservatively, with the goal of reducing pain and restoring normal jaw function before considering anything permanent. For many people, a dentist is the first and only specialist they need.
Custom Splints and Mouth Guards
The most common thing a dentist will do for TMJ is make you a custom oral appliance, often called a splint or occlusal guard. These are made of hard acrylic resin, molded from an impression of your teeth in a dental lab. They’re a significant step up from the boil-and-bite night guards sold in drugstores, both in fit and function.
There are two main types. A stabilization splint (also called a flat-plane splint) covers all of your upper teeth and provides a flat biting surface. Its job is to reduce grinding and help your jaw muscles relax. One thing worth knowing: it doesn’t actually prevent clenching, because your lower teeth can still press against it. For some people, this means the splint can aggravate symptoms rather than relieve them, so follow-up visits matter.
A repositioning splint works differently. It guides your lower jaw forward or backward to shift the joint into a better position, sometimes with the goal of recapturing a disc that has slipped out of place (the source of that clicking sound many TMJ patients notice). These splints carry more risk. Using one for longer than about six weeks can cause permanent changes to your bite, additional joint damage, and increased pain. Your dentist should be monitoring you closely if you’re wearing one.
Medications Your Dentist Can Prescribe
If over-the-counter pain relievers aren’t cutting it, your dentist can prescribe stronger options. Prescription-strength anti-inflammatories like higher-dose ibuprofen are a common first step. For pain that involves muscle spasms, short courses of muscle relaxants (typically a few days to a few weeks) can break the cycle of tightness and soreness.
Some dentists also prescribe low-dose tricyclic antidepressants. These aren’t being used for depression in this context. At low doses, they help with pain control, reduce nighttime teeth grinding, and improve sleep, all of which feed into TMJ symptoms. This approach is more common when pain is chronic or when grinding is a major contributor.
Botox Injections for Jaw Tension
Increasingly, dentists are offering Botox injections directly into the masseter muscle, the large muscle on each side of your jaw that does most of the work when you chew or clench. The injection partially relaxes the muscle, which reduces the force it can generate and eases the strain on your joint. A typical treatment involves 20 to 30 units per side.
The effects last roughly four to six months before the muscle gradually regains full strength. Many patients notice their jaw feels less tight within a week or two, and the grinding or clenching that worsens TMJ symptoms becomes less forceful. Not every dentist offers this, so you may need to ask specifically or seek out a provider trained in therapeutic Botox.
TENS Therapy to Reset Jaw Position
Some dental offices use a treatment called TENS (transcutaneous electrical nerve stimulation) as part of TMJ care. Small electrodes placed on your skin deliver gentle electrical pulses that cause your jaw muscles to contract and relax in a controlled rhythm. The goal is to release the built-up tension that keeps your jaw locked into a pain-causing position.
TMJ often trains your muscles into habitual patterns that pull your jaw off its natural resting position. TENS essentially overrides those patterns by fatiguing the tight muscles and encouraging them to let go. This also prompts your body to release endorphins, providing some immediate pain relief. Beyond the therapeutic benefit, TENS helps your dentist figure out where your jaw naturally wants to sit when muscles aren’t fighting it, which is valuable information for planning splints or other treatments.
Bite Adjustment and Tooth Reshaping
When an uneven bite is contributing to TMJ problems, a dentist can selectively reshape tooth surfaces to improve how your upper and lower teeth meet. This procedure, called occlusal equilibration, involves carefully removing tiny amounts of tooth material to balance the forces across your back teeth. The idea is to eliminate the uneven contacts that force your jaw into a strained position every time you close your mouth.
This is considered an irreversible treatment, so dentists apply it cautiously. It’s typically only done after your jaw pain has already been controlled through other means, like a stabilization splint. Your jaw should be pain-free and your bite should be confirmed as genuinely unstable (meaning your back teeth aren’t making balanced contact) before any reshaping happens. Think of it as a later-stage option, not a first step.
What Treatment Typically Looks Like
Your dentist will start with a physical examination of your jaw, checking for tenderness in the muscles, listening for clicking or popping sounds, and measuring how wide you can open your mouth. They may press on specific areas around your jaw joint and ask you to open, close, and slide your jaw side to side. Imaging like X-rays or an MRI sometimes follows if the exam raises questions about the joint structure or disc position.
From there, treatment almost always begins with the least invasive options: a splint, anti-inflammatory medication, and guidance on habits like avoiding hard or chewy foods, not resting your chin on your hand, and keeping your teeth slightly apart during the day. Physical therapy exercises for the jaw are often part of the plan too. Most people improve with these conservative measures alone. If they don’t, that’s when your dentist may escalate to Botox, TENS, bite adjustments, or a referral to an oral surgeon or TMJ specialist for more advanced care.
The key principle guiding good TMJ treatment is to start reversible and stay reversible as long as possible. Splints come out. Botox wears off. Medications stop. These approaches give your jaw a chance to heal without committing you to permanent changes. Irreversible procedures like tooth reshaping, orthodontic work, or surgery are reserved for cases where conservative treatment has genuinely failed and a clear structural problem has been identified.