How can I reduce the size of my masseter muscle?

Doctor's Answers 2

The left masseter, if grossly imbalanced can be weakened with botulinum toxin. And yes, the frequency of injections will lessen over time due to reduced usage.

Do note that if you end up using the right side more because the left is weakened, you will end up with a strong right masseter, and need treatment for that too.

Some chewing equality and training is advisable, and I can guide you to the right direction for that if desired.

Hope it works out nicely for you!

You can consider Dysport injection to your larger masseter muscle. After the injection, it takes 1 month before you start to see the muscle atrophy (shrinking). The effect last 4 – 6months.

During this period, you can start to review your chewing habits. This includes having a habit of chewing with both sides of your jaw, avoiding nuts, and consulting a dentist to see if you need a dental mouthguard to prevent teeth grinding at night.

Most of my patients who have one side of their masseter larger do confess that they prefer to chew on that side of their jaw. Hence, after conscious effort to “re-train” their chewing habits, they do manage to overcome this problem, and not need to rely on Dysport/Botox injections. Thanks.

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