Yes. Botox injected into the masseter muscles reduces the force of clenching and grinding, and most people notice less jaw tension, fewer tension headaches, and less morning soreness within two to three weeks.
It does not stop the habit itself. It weakens the muscle doing the damage, which is often enough to break the pain cycle.
What Bruxism Actually Is
Bruxism is involuntary clenching or grinding of the teeth, usually during sleep but often during waking hours too. Most people have no idea they are doing it until a dentist points out worn enamel or they wake up with a sore jaw.
The masseter is the thick muscle running from your cheekbone to the angle of your jaw. Clench your teeth and put your fingers there and you will feel it bulge.
That muscle can generate enormous force. When it fires repeatedly all night, the result is cracked teeth, flattened molars, jaw joint pain, ear pressure, and headaches that start at the temples.
Common signs
- Waking with a tight or aching jaw
- Headaches concentrated in the temples, worst in the morning
- Clicking or popping at the jaw joint
- Worn, chipped, or sensitive teeth
- A jawline that has visibly squared off over time
- A partner who mentions hearing grinding at night
How Botox Works on the Masseter
Botox blocks the nerve signal telling the muscle to contract. Injected into the masseter, it does not paralyse the jaw, it dials down the maximum force the muscle can produce.
You still chew, talk, and eat normally. What changes is that the involuntary night-time clench no longer has the same power behind it.
Typical dosing runs higher than a cosmetic forehead treatment because the masseter is a large, dense muscle. Most people need somewhere between 20 and 30 units per side, adjusted after assessing muscle bulk.
The injection sits deep in the muscle, well away from the muscles controlling your smile. Placement matters, which is one of the reasons the questions you ask before booking with an injector are worth taking seriously.
Results Timeline
| Timeframe | What to expect |
|---|---|
| Days 1 to 3 | Mild tenderness at injection sites. No real change yet. |
| Days 4 to 10 | Clenching force starts dropping. Morning soreness eases. |
| Weeks 2 to 3 | Full effect. Headaches and jaw tension noticeably reduced. |
| Months 2 to 3 | Visible slimming of the jawline in some patients as the muscle reduces in bulk. |
| Months 3 to 6 | Effect fades gradually. Time to reassess and re-treat. |
Masseter treatment often lasts longer than cosmetic areas, sometimes four to six months, because the muscle is large and the dose is higher. The same factors that influence how long any Botox result holds apply here, including metabolism, dose, and how active the muscle is.
Many patients find their intervals stretch out after two or three rounds. The muscle atrophies slightly with repeated treatment, so it takes less to keep it calm.
Botox Versus a Dental Night Guard
These solve different halves of the problem. A night guard protects your teeth from the damage. Botox reduces the force causing it.
| Night guard | Masseter Botox | |
|---|---|---|
| Protects enamel | Yes | Indirectly |
| Reduces jaw pain | Sometimes | Usually |
| Helps tension headaches | Rarely | Often |
| Typical AB cost | $400 to $900 custom fitted | $400 to $700 per session |
| Lasts | Several years | 4 to 6 months |
| Comfort | Takes adjustment | Nothing to wear |
A guard is a one-time cost that lasts years, so over a decade it is cheaper. Botox is recurring, but it addresses pain a guard often does not touch.
Plenty of people in the Bow Valley use both. The guard saves the teeth, the Botox saves the headaches.
What It Costs
Masseter treatment is priced by units, and because the dose is larger than a frown line treatment, expect a session in the $400 to $700 range depending on muscle size.
Alberta health plans do not cover it as a cosmetic service, though some extended benefit plans will consider it under therapeutic use with dental or physician support. Worth checking your plan before you assume otherwise.
For an exact figure based on your jaw, get in touch for a quote and we will assess muscle bulk at consultation rather than quoting blind.
Who Is a Good Candidate
People with confirmed or suspected bruxism, visible masseter bulk, and ongoing jaw or temple pain tend to respond best. So do people whose jaw tension flares with stress or workload.
Canmore and Banff run on shift work, hospitality hours, and long ski and trail seasons. Poor sleep and physical fatigue both make clenching worse, which is part of why we see this so often across the Bow Valley.
If your jaw pain comes primarily from a joint disorder rather than muscle overactivity, Botox may help less. A dental or medical assessment first is sensible.
Side Effects and Trade-offs
The most common complaints are short-lived: tenderness for a few days, mild bruising, and a slightly tired feeling when chewing tough food during the first two weeks.
Chewing weakness resolves as your body adapts. Steak and bagels are the usual culprits early on.
Over-treatment or poor placement can affect the smile or cause an uneven jawline. This is a technique-dependent area, and it is why it should be done by an experienced medical injector rather than treated as a routine add-on.
One side effect many patients welcome: a softer, less square jawline as the muscle slims. If face shape is your main goal rather than pain, that is a different conversation, and it overlaps with the difference between what Botox and fillers do for facial contour.
Booking in the Bow Valley
We treat patients from Canmore, Banff, Lake Louise, and the surrounding area, and our Banff Botox appointments cover the same therapeutic masseter work.
Bring any notes from your dentist about wear patterns. That information helps size the dose accurately on the first round.
Call (825) 804-4951 or book a consultation. Assessment takes about fifteen minutes and treatment itself is under ten.