How deep must Botox be injected for masseture reduction?

Question

I’ve been receiving Botox for my massetures for a couple of years now has I enjoy the tightening effects it has on the contour of my lower face. I recently received Botox by a different injector, I noticed that she was injecting superficially. If this is the case what effects will it have on my massetures or surrounding muscles/tissue?

Monica Boen, MD · Answer

Botox treatments require precision in needle placement to ensure an optimal outcome. I would wait at least 4 weeks after your treatment since this is how long it typically takes for Botox to take full effect in the masseter muscle. If you do not see sufficient correction at that point, schedule a follow-up treatment with your injector to see if additional injections are needed. Always work with an expert Botox injector who is also a board-certified dermatologist to ensure your results are consistently positive.

Sacha Obaid, MD · Answer

Thank you for your question! I inject into the belly of this muscle with a three point injection technique as this muscle is extremely strong. I would revisit your provider after two weeks from the date you received your injection if you don't receive your desired outcome. Best of luck to you!

Munir Somji, BSc, MBBS · Answer

Generally Botox should be injected into the muscle belly which is not superficial. My advice is to wait 2 weeks for the effects and top up if necessary

Kristin M. Baird, MD · Answer

The masseter muscle is deeper, thicker, and stronger than the other muscles of the face which are injected for wrinkles. It requires more units and must be placed deeper into the belly of the muscle to be most effective. You will be able to assess your results within 2 weeks. If you have questions  or if the treatment is less effective I would return to your injector for evaluation. Best wishes.

Chien C. Kat, MD · Answer

Hi, I prefer to inject the Botox deep in this area to ensure the full muscle is treated. Sometimes injecting too superficial will leave some of the masseter active in the deeper layers. Please consult a medical practitioner for a face to face assessment. Kind regards, Dr Ana. Kat & Co Aesthetics

Camille Cash, MD · Answer

Botox should be injected directly into the muscle for maximum effect.  If you are not noticing the usual results you enjoy from Botox treatments I encourage you to return to your injector for an evaluation.

Jeffrey Cranford, MD · Answer

Thanks for the question, Sophie. Because Botox acts on the nerve endings within the muscle itself, it will be most effective when deposited directly into the substance of the muscle. Due to the thickness of the overlying tissues in this area, the needle is advanced deeper than is typically needed elsewhere on the face. I usually inject a total of 25-40 units through 3 separate injection points for each masseter. I would allow two weeks for the Botox to take effect and, if you still have concerns at that point, I would make a follow-up appointment with your doctor.

Lucija Kroepfl, MD · Answer

Thank you for your question Sophie! To reduce the master muscle the Botox has to be injected deep into the muscle. I usually ask my patients to clench their teeth and I mark 2-3 points on each side where I inject deeply into the muscle. If you are concerned regarding your treatment you should schedule a follow-up appointment with you doctor after two weeks.

Selena Lantry, MD · Answer

As Botox works by impacting the normal functioning of your muscle, the Botox must be injected into the muscle.   I would recommend waiting two weeks for the full results from your Botox.  If, at that point, you still have concerns, then I would recommend scheduling a follow up visit with your provider to go over your results.

Richard E. Moore, MD · Answer

Thank you for your question Sophie. Botox (or any other neuromodulator should be injected into the mass of the muscles. Care should be taken to maintain symmetry side to side. I generally injection into 2-3 locations in the masseter muscle which are determined by palpation as the patient bites down. Each side is marked and compared to ensure symmetry.I hope this was helpful - Dr. Moore.

How deep must Botox be injected for masseture reduction?

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