Short answer: In dentistry, Botox (botulinum toxin) is used to temporarily reduce excessive contraction of the chewing muscles. It is most often considered as a supportive option for teeth clenching and grinding (bruxism), the related jaw muscle pain, and showing too much gum when smiling (gummy smile). Its effect usually lasts 3–6 months; it does not remove the cause and should be planned together with other treatments.
Although Botox brings facial wrinkles to mind first, botulinum toxin also has uses beyond aesthetics in medicine and dentistry. Botox in dentistry comes up as a supportive option especially for problems caused by overactive chewing muscles and in some aesthetic situations. However, Botox is not the solution to every jaw pain or clenching problem, and it needs to be used in the right case with the right expectations. In this article we explain, in the light of scientific data and without exaggeration, why a dentist might use Botox, its role in bruxism, gummy smile and jaw joint disorders, and questions of safety and how long it lasts.
Why would a dentist use Botox?
In dentistry, Botox is used to control problems caused by excessive or involuntary contraction of the muscles in the mouth and jaw area. Botulinum toxin temporarily reduces the contraction signal transmitted from nerve endings to the muscles. As a result, the injected muscle contracts with less force, and the related pain, wear or aesthetic problems may ease.
Dentists are physicians who know closely how the chewing muscles, the jaw joint and the teeth affect one another. That is why evaluating and planning treatment for complaints such as tooth wear due to clenching, broken fillings and crowns, and pain and fatigue in the jaw muscles falls within the field of dentistry. Botox is not a standalone part of this plan but an option that can be added to other treatments when needed. It should be administered in accordance with the relevant regulations by authorized physicians trained in this field.
How does Botox work for bruxism and jaw pain?
Bruxism, that is, teeth clenching and grinding, is a common condition that can occur during the day or during sleep. When it continues for a long time, it can lead to tooth wear, fractures, sensitivity, jaw fatigue on waking in the morning, headaches in the temple area and noticeable enlargement of the chewing muscles.
In bruxism, Botox is usually injected into the masseter muscle, which is involved in chewing, and in some cases into the temporalis muscle at the temple. The aim is to reduce the muscle's contraction force and thereby ease the load on the teeth and the jaw joint. Research shows that Botox can reduce muscle pain and the intensity of clenching in some people; however, the number and quality of the studies are limited, and the effect varies from person to person. In addition, Botox does not remove underlying causes of bruxism such as stress, sleep disorders or bite problems.
That is why the first steps in bruxism treatment are usually:
- Wearing a custom-made night guard to protect the teeth
- Awareness of keeping the jaw relaxed during the day, and behavior changes
- Stress management and improving sleep habits
- Muscle exercises and physical therapy if needed
- Referral to the relevant specialist if sleep apnea is suspected
Botox can be considered as a supportive option in selected cases where complaints persist despite these methods.
In many countries, using Botox for bruxism is not among the drug's approved indications and is considered "off-label" use. This does not mean it is prohibited, but it makes informing the patient in detail about possible benefits, risks and alternative treatments, and obtaining written consent, even more important. In addition, it is recommended in most cases to keep wearing a night guard to protect the teeth even after Botox.
Can a gummy smile be corrected with Botox?
When the upper gum shows prominently while smiling, it is called a "gummy smile." This can have more than one cause: overactive muscles that lift the upper lip, a short upper lip, excess gum tissue that makes the teeth look short, or excessive vertical growth of the upper jaw.
If the cause is excess muscle activity, small Botox injections into the muscles that lift the upper lip can reduce how much gum shows by making the lip rise less when smiling. This is a relatively simple and temporary option. However, if the problem stems from excess gum tissue, gum contouring may be a more suitable solution; if it stems from the position of the teeth, orthodontic treatment; and if it stems from the jaw structure, orthognathic surgery. To choose the right treatment, the cause of the gummy smile needs to be evaluated in detail. In some cases, adjusting the vertical position of the teeth with orthodontic treatment can also significantly affect how much gum shows.
What role does Botox play in jaw joint disorders?
Jaw joint disorders (temporomandibular disorders) are a group of problems that show up as pain in the jaw joint and surrounding muscles, limited mouth opening, noises in the joint and difficulty chewing. A significant share of these complaints originate in the muscles; others relate to the structure of the joint itself.
Botox can be considered especially for muscle-related pain, in selected cases that do not respond to other treatments. In structural problems such as disc problems inside the joint, locking or joint degeneration, however, the effect of Botox is limited. Most jaw joint disorders are managed initially with conservative, reversible methods: a soft diet, applying heat, jaw exercises, an occlusal splint, physical therapy and, if necessary, medication recommended by the physician. With these methods, complaints decrease in the majority of patients.
Botox does not replace these treatments; it can be considered as part of the plan once a correct diagnosis has been made. That is why it is important for anyone with jaw pain to first have a detailed examination.
Is Botox safe, and how long does it last?
Botox is generally well tolerated when administered at an appropriate dose by an authorized physician with the right technique. However, as with any medical procedure, it has some side effects and situations in which it should not be used.
Possible side effects
- Temporary pain, redness or bruising at the injection site
- Temporary reduction in chewing strength, difficulty chewing hard foods
- Temporary asymmetry in the smile
- Rarely, headache or flu-like symptoms
When it should not be used
- Pregnancy and breastfeeding
- Neuromuscular diseases such as myasthenia gravis
- An active infection at the injection site
- A known allergy to botulinum toxin
- Use of certain medications; for this reason, all medications you take should be reported to the physician
The effect of Botox is not permanent. It usually starts a few days after the injection, becomes noticeable at around 2 weeks and mostly fades gradually within 3–6 months. If you want the effect to continue, the treatment needs to be repeated. The effects of long-term, frequently repeated injections on muscle and bone are still being researched; for this reason, repeat intervals and need should be carefully evaluated by the physician. For other questions you may have, you can take a look at our frequently asked questions page.
When should you get an examination in Ankara for teeth clenching or jaw pain?
If you notice jaw fatigue in the morning, wear or sensitivity in your teeth, frequent headaches at your temples, or pain and noises when opening your mouth, a dental examination is helpful to understand the source of your complaints. At our clinic in Oran, Çankaya, the effects of clenching on your teeth, your bite and jaw joint findings are evaluated; treatment options that suit you, particularly a night guard, are explained, and you are referred to the relevant specialties when needed.
Frequently asked questions
Does Botox stop teeth clenching completely?
Botox can reduce the intensity of clenching and muscle pain in some people, but it does not remove the cause. Because its effect is temporary, complaints may return over time. Methods such as a night guard are usually recommended as the main treatment to protect the teeth.
Does masseter Botox change the shape of the face?
Botox injected into the masseter muscle can make the jawline look slimmer as the muscle thins over time. This effect is also temporary, and the muscle returns to its former state if the treatment is not repeated. Expectations should be discussed with the physician before treatment.
Botox or surgery for a gummy smile?
The choice depends on the cause of the gummy smile. If the cause is overactive lip muscles, Botox can be a temporary option; with excess gum tissue, gum contouring, and in cases caused by the jaw structure, orthodontics or surgery may be needed. The right decision is made with a detailed analysis.
How long does a Botox treatment take?
The injection procedure is usually completed within 10–20 minutes. After the treatment, the person can return to daily life, but it is recommended not to massage the area and to avoid intense exercise in the first hours. The effect starts within a few days.
