Masseter muscle bulk can be reduced over several months to a year by repeated Botox injections of 20 to 30 U per side every 3 months.
What Are All Massester Muscle Problems and Treatments Can You Explain Please?
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Botox and masseter reduction
If you are considering Botox to your masseters for jawline reduction, this is a very common practice and works very well. Consult with a well-trained and experienced provider in your area for expectations, education, and assessment.
Masseter muscle problems
In cosmetic surgery "Masseter hypertrophy" is the most common issue: Square /full cheeks. This is fairly common in Orientals. It can be treated with Botox injections to "weaken" the muscle and make the jaws less square. This is only a temporary improvement as the Botox wears off..
More promising is to shave down the muscle and corner of the jawbone. It can be done through the mouth (my preferred approach) or through a cut underneath the angle of the jaw.
See a Plastic Surgeon experienced in the treatment of this problem.
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Botox can be used to soften full cheeks
The masseter muscle is the muscle you feel over your cheeks when you clench your teeth. Sometimes they get too large or may just be genetically large. These muscles can be relaxed with Botox and the face will look slimmer. Since there are other muscles we use to chew with, this will not cause eating difficulties. This is a very common procedure performed in countries like Korea where square faces and jaws are considered unattractive for a woman.
These answers are for educational purposes and should not be relied upon as a substitute for medical advice you may receive from your physician. If you have a medical emergency, please call 911. These answers do not constitute or initiate a patient/doctor relationship.