You may have heard about Botox for smoothing fine lines, but it can also be a helpful tool for your jaw. Your masseter muscles (the ones you feel on the side of your face when you clench your teeth) can sometimes cause things like TMJ-related jaw pain and headaches or a wider-looking jawline. Here’s a straightforward look at how masseter Botox works and what you can expect from Botox treatments in a dental setting.
Masseter Botox works by relaxing the jaw muscles to reduce clenching and slim the lower face. It’s a simple procedure that can help you feel more comfortable in your day-to-day life.
How Masseter Botox Works & What It Does
Masseter Botox involves a series of small injections that help relax your main chewing muscle. This simple treatment can help with both physical discomfort and the shape of your face. People choose it for a couple of key reasons.
For Jaw Pain Relief & Teeth Grinding Issues
If you clench or grind your teeth (a condition known as bruxism), you can put extra strain on your jaw. This can lead to issues that can affect your daily routine and comfort. You may experience:
- Frequent headaches or migraines
- Soreness in your jaw, neck, or face
- Wear and tear on your teeth
Botox can help ease the tension in these overworked muscles. By softening their contractions, symptoms associated with clenching and grinding may be reduced. This can lead to more comfortable days and more restful nights.
For a Slimmer Facial Profile
Just like any muscle in your body, the masseter muscles can grow larger with constant use. Clenching and grinding act as a workout for your jaw, which can give the lower face a wider or more square appearance.
By relaxing these muscles, Botox allows them to shrink and become less prominent. This process can help create a softer, more balanced jawline, which is 1 of the reasons people seek Botox for cosmetic treatments.
Your Masseter Botox Appointment & What to Expect
Your comfort is important throughout every step of the process. We design the treatment to be as quick and straightforward as possible. You can expect a supportive experience right here in our dental office.
Your Initial Chat & Assessment
First, you’ll sit down with your dentist to discuss your goals and concerns. We can take the time to listen to what you hope to achieve with the treatment. Your dentist can look at your jaw muscles and facial structure to determine if Botox is a suitable option for you.
This conversation helps us create a plan tailored just for your individual needs. We can determine the right amount of Botox necessary to help you get the results you’re looking for.
The Quick & Simple Treatment
The actual injections only take about 10–15 minutes to complete. A very fine needle is used to precisely place the product into the masseter muscle. Most people describe the feeling as a tiny pinch that is over in a moment.
There’s no downtime required, so you can get back to your day right after your appointment. The process is designed to fit easily into your schedule.

What to Expect After Treatment
A little care after your appointment helps you get the most out of your treatment. Following a few simple guidelines can support a smooth and effective outcome. These steps are easy to incorporate into your day.
The First 4 Hours & Beyond
Right after your treatment, it’s often a good idea to avoid a few activities to let the Botox settle properly. This helps the product work as intended. For the first 4 hours, you should try not to:
- Rub or massage the treated area
- Lie down flat or lean your head forward for long periods
- Do any strenuous exercise
- Consume alcohol
After this initial period, you can return to your normal activities. These precautions are temporary but play a part in your final results. Taking it easy for a short while is all you need to do to support your overall health and well-being.
Common Side Effects & Risks
Most people have very few, if any, side effects from the treatment. You might notice some mild bruising, swelling, or tenderness at the injection sites. This typically fades on its own within a few days.
In some cases, a temporary crooked smile or muscle weakness is possible. However, these effects are uncommon when the treatment is performed by a professional, as clinical studies note the importance of proper technique. We can discuss all potential outcomes during your consultation.
Your Results & How Long They Last
Results from masseter Botox typically appear gradually as the muscle slowly relaxes. It’s not an instant change. Instead, it is a subtle difference that develops over time. Patience is key as your body adjusts to the treatment.
When You See a Difference
You might start to feel relief from jaw pain and tension within 1–2 weeks, which is 1 of the key therapeutic benefits for TMJ disorders. The changes to jawline shape take a bit longer to become visible. Most people notice a slimmer facial profile around 4–6 weeks post-treatment.
This timeline allows the muscle to gradually reduce in size. The result is a natural-looking refinement of the lower face. Your friends might notice you look refreshed without knowing exactly why.
How Often You Need Follow-Up Treatments
The effects of masseter Botox typically last for 3–6 months. To maintain your results for both comfort and aesthetics, you’ll need to schedule follow-up appointments. Everyone’s body is different, so the timing can vary.
Over time, some people find they can go longer between treatments. As the muscle gets used to being relaxed, you may not need appointments as often. We can help you create a schedule that works for you.
Talk to a Dentist About Your Options
Masseter Botox can be a helpful solution for persistent jaw pain or for refining your facial shape. It offers a way to find relief or feel more comfortable with your appearance. Making sure it aligns with your personal health and aesthetic goals is helpful, and at Springbank Dental Centre, we would love to see whether this treatment is right for you.
We encourage you to book an appointment with our team. Let’s reach your health goals together.
