Jaw widening due to jaw clenching
Masseteric hypertrophy is the enlargement of one or both masseter muscles—the major chewing muscles located at the angle of the jaw. It is generally benign, often painless, and most commonly noticed because it creates a wider, more square‑shaped lower face.
How is masseteric hypertrophy treated?
Botox or Dysport can be injected into the muscle to weaken it and eventually cause it to atrophy (“shrink in size”). This will give the face a more slender appearance over time.
How do Botox and Dysport work?
Botox and Dysport work by paralyzing the treated muscles, resulting in smoothening of wrinkles in the treated area.
How long does it take for Botox and Dysport to show results?
Botox and Dysport can take up to 10-14 days to show full effect.
How long does it take to notice a slimmer appearance of the face?
It requires approximately 6 months of treatment before the face appears noticeably slimmer.
How long does treatment of masseteric hypertrophy with Botox and Dysport last?
Clinical results from Botox and Dysport last approximately 3 months. In order to notice slimming of the face, continuous treatment for several months is needed.