This is Montanna Morris from Florida, and recently she shared on TikTok how receiving Dysport facial injections for her TMJ (temporomandibular joint) pain botched her smile.

Montanna said, "My doctor had prescribed me muscle relaxers before, but that didn’t help, so she recommended Botox as an option before major jaw surgery. The injector told me I would have final results within a week or two, but my face was already freezing within four days — so I knew it was going to be bad."
She continued, "The width of my mouth started shortening. I could see less and less of my teeth when I would smile — that’s the first thing I noticed. Then my dimples almost completely went away. My TMJ is better — my jaw did unlock soon after treatment and locks up a lot less now, but I surprisingly have more pain than before. From the paralysis, I’ve had quite a bit of muscle atrophy, so chewing certain things is more difficult than before."

Montanna said she received treatment on Jan. 21, and while she's seen some improvement, she feels as if recovery has slowed. When asked what went wrong, she said, "They were running a discount on Dysport, which is just a different brand than Botox, but the unit measurements are different — so I decided to go with that. They told me that 1 unit of Botox was equivalent to 3 units of Dysport. I had only agreed to 15 units of Botox in each masseter muscle, but the injector didn’t draw the proper amount when converting the numbers for Dysport."

To get a professional opinion, BuzzFeed talked to New York City–based facial plastic surgeon Dr. Gary Linkov, who practices at City Facial Plastics. Linkov told BuzzFeed, "I hear stories like this all the time. A patient comes in telling me that they had this done and their smile was impacted, and now they are scared to have it done again. Improper placement AND improper neurotoxin selection is why this can happen. Dysport is known to diffuse more than some of the other options, like Botox. Therefore, Dysport SHOULD NOT be used in the masseter muscle for TMJ. Botox is the better option. In terms of placement, many providers will feel the masseter muscle and inject the thickest part — but that ends up being too close in vicinity to the risorius muscle, which is the main culprit in smile distortion after masseter injections."

Luckily, Linkov told us, there is light at the end of the tunnel. "It generally takes three to four months for the effects of a neurotoxin to wear off, regardless of which type was used," he said. "Since her injections were two months ago, in the next month or two, things will go back to normal."
