Hannah Berner’s Dysport Mishap Explained: Risks, Recovery, and Safe Jaw Botox Tips
By Robert Thorne
The human face is an intricate map of interwoven muscle fibers layered over millimeters of soft tissue. The masseter is a deep, thick muscle responsible for chewing. Sitting directly superficial to its anterior border is the risorius muscle, a delicate ribbon of tissue responsible for pulling the corners of the mouth upward and outward into a full, genuine smile.
[ Zygomaticus Major ] ---> Pulls mouth corner upward
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[ Masseter Muscle ] === (Accidental Diffusion) ===> [ Risorius Muscle ] (Frozen)
(Target: Jaw Clenching) (Result: Flat / Asymmetric Smile)
When an injector administers neurotoxins into the masseter, precision depth and placement determine the entire outcome. If the needle angles too far forward toward the cheek, or if the drug is injected too superficially, the neurotoxin migrates into the risorius.
Dysport carries a slightly wider diffusion radius than Botox due to its protein composition and dilution ratio. In broad muscle groups like the forehead or neck bands, wide diffusion can provide smooth coverage. Along the tight margins of the jawline, however, even two millimeters of drift can silence the risorius entirely. The result is what clinicians call an asymmetrical smile dropout or a flat, unexpressive lower face.
Robert Thorne covers electric vehicle innovations, autonomous driving systems, global mobility trends, and automotive engineering developments.
