Botox 40 Units and Jaw Looks Wider and Growth of New Jaw Muscles

Hi its been 2 months since i've had 40 units of botox for square jaw reduction. Results after the first month were bad. Right cheek and muscles had swelled up. Its much better now. I've noticed that the masseter muscles have decreased comparing pictures with the width of my face being smaller. However, i find that my jaw structure has become wider with my face looking more squarish like there being more muscle flab. Could this be that too much botox was added causing the other muscles to react?

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2 Doctor Answers | Asked by Nivesh

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Botox for hypertrophic masseter muscles

There are several muscles in the cheek, not only the masseter muscle. Injections for hypertrophic masseter muscles should be done by an expert. Some people have enlarged masseter muscles because of genetics and others have it because of a history of grinding their teeth. Unequal treatment of one side vs. the other could cause an unbalance that could exacerbate TMJ jaw pain or cause problems. If the masseter reduces its contractile ability, does its girth become flacid and the middle of the... more

Botox effects on facial muscle bulk?

Botox is a neurotransmitter blocker (Botox binds to the acetylcholine receptors that control muscle contraction), paralyzing the muscles into which it is injected. Other functions controlled by these receptors (such as sweating) can also be blocked. Migraines can be prevented by paralyzing the muscles that act as triggers. Even though these receptors are irreversibly bound by the Botox molecule, each person's body is continually making "new" receptors, so eventually (2-6 months,... more