Is botox injection into the upper part of the masseter muscle posible? doc doesn't want to because it is near the parotid gland?

Yes, it is possible to treat the entire masseter to decrease its size which can be done by injecting several points of the muscle.

The entire masseter muscle can be treated to decrease size, this treatment is typically done with 3 injection points. An injection can be administered to masseter despite the parotid gland. Possibly seek an alternate consultation with an expert injector.  

It is difficult to make an accurate assessment of your situation without seeing any pictures. In general, If you can feel the masseter muscle while clenching your teeth then it should be safe to inject in the upper part. Injection of this area does take skill, as injecting too superficially may weaken other muscles and leave you with an asymmetric smile. If your doctor does not feel comfortable, or have experience with doing this safely then he is making a correct judgement call by opting not to perform the injections. In that case, you may want to find a physician who has extensive experience with using Botox for TMJ. Best of luck.

Yes, this is possible. If your injector is not familiar with this, you should seek a second opinion from a physician injector. I hope this information is helpful for you.Stephen Weber MD, FACSDenver Facial Plastic Surgeon

This is a commonly performed procedure and should not adversely affect the parotid gland. A tiny 32 gauge needle is usually used to minimize bruising and the results take about a week to fully take effect.  By clenching down (biting down) hard you can feel the outline of the muscle and I inject several points directly into the belly of the muscle.  15-25 units per side are typically used.  This is an off label treatment and seek out a board certified injection specialist with experience in the area if you are not comfortable with the treatment you are getting so far.best of luck!

There is absolutely no problem going through the parotid gland to the masseter muscle.  Treatment of cysts of the parotid gland with injected Botox is in fact a standard treatment.Usually, the masseter is injected in three places, typically in a pyramidal shape or like a triangle. So I see no problem with injecting a little higher than the first treatment. One can tell by having the patient clench the jaw and seeing and palpating the bulk of the masseter. One then simply injects the mass of the muscle.