Pivotal role of injection volume on sunken cheek prevention in masseter muscle BoNT-A injection: A cadaver study.
Panxi YuHaixin ZhaiZhijin LiRuijia DongTingting WuYun-Zhu LiZhang DiYixin SunXiao LongNanze YuPublished in: Journal of cosmetic dermatology (2021)
The spread of indocyanine green within the masseter occurs in direct proportion to its volume. A bolus of 1 ml easily exceeded the mouth corner-tragus line and cause sunken cheek.