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Teeth grinding, clenching and headaches – Muscle Relaxant

close up of a person's teeth

Discussing the issue & treatment of teeth grinding, clenching

We are currently treating a number of patients for clenching and grinding, so we thought we would write about the possible treatments for what is becoming a prevalent issue.

The symptoms presented are either flattened teeth causing severe loss of tooth structure or chronic headaches and sleeping issues.

There are a variety of treatments available for issues involving teeth grinding, clenching, and headaches that arise from the aforementioned dental problems. Each case needs to be assessed individually.

However, to help you understand the options here is an overview:


Excessive clenching or grinding of the teeth, known as bruxism, is often caused by physical or psychological stress or a sleep disorder. If untreated, bruxism can lead to excessive wear on the teeth and may cause permanent damage to the teeth and jaw joints.

Treatment involves repairing damaged teeth (such as restorations, crowns, or inlays to replace the damaged tooth surface) and subsequently creating an occlusal splint (night guard) made from hard plastic that fits over the upper or lower teeth, and is worn at night to prevent further wear of the tooth surfaces.

There are other options, such as Muscle Relaxant that can be used to immediately cease the clenching and subsequent headaches and jaw pain.

Muscle Relaxant can lessen bruxism’s effects. An extremely dilute form of Muscle Relaxant is injected to partially weaken muscles and has been used extensively in cosmetic procedures to relax the muscles of the face.

diagram of a human's jaw muscles - side viewBruxism can be regarded as a disorder of repetitive, unconscious contraction of the masseter muscle (the large muscle that moves the jaw). In the treatment of bruxism, Muscle Relaxant weakens the muscle enough to reduce the effects of grinding and clenching, but not so much as to prevent proper use of the jaw muscle for eating.

Muscle Relaxant treatment typically involves a number of small injections into the masseter muscles. It takes a few minutes per side, and you can start to expect feeling the effects as quickly as the next day, although 3-4 days is more common.

The optimal dose of Muscle Relaxant must be determined for each person as some people have stronger muscles that need more Muscle Relaxant. This is why you should always see someone specifically trained in the application of Muscle Relaxant for treatment of clenching.

The effects last for about three months. Over time it is usually possible either to decrease the dose or increase the interval between treatments.

Our patients have had plenty of success with this treatment, it have relieved headaches associated with clenching as well as allowed their teeth to recover from constant grinding.

TMJ disorders

diagram of a human skull showing the jaw and ligamentsThe temporomandibular joint (TMJ) is a small joint located in front of the ear where the skull and lower jaw meet. It permits the lower jaw (mandible) to move and function.

TMJ disorders are not uncommon and have a variety of symptoms. Patients may complain of earaches, headaches and limited ability to open their mouth. They may also complain of clicking or grating sounds in the joint and feel pain when opening and closing their mouth. What must be determined, of course, is the cause.

We work to determine the cause and offer a range of options in order to reduce and deal with the issue before it damages your teeth.