The masseter muscle is a kind of masticatory muscle. It begins at the lower edge and inner surface of zygomatic arch and ends at the lateral side of masseter tubercle and mandibular branch. The contraction of masseter muscle, temporal muscle and medial pterygoid muscle can hold up the mandible (closed mouth). Dominated by the mandibular nerve masseter nerve. It is of great significance in chewing function.
Bone hypertrophy of mandibular angle and masseter muscle hypertrophy are the main reasons for the lower width. Different plastic surgery treatments can correct the wider lower part to obtain beautiful facial contours. At present, the conventional treatment methods are mandibular angle osteotomy+partial resection of masseter muscle+injection of botulinum toxin A into masseter muscle. But what kind of treatment can effectively reduce the thickness of masseter muscle?
Extended data:
The masseter muscle is influenced by many factors, such as race, sex, age and face shape. Generally speaking, men are more developed than women, and the elderly are more developed than young people, but the decisive factor is chewing. Because of its contraction, people who often love hard food will develop masseter muscles accordingly.
If you eat hard food from an early age and chew more during adolescence, the mandible will often over-develop under its influence, forming the appearance of hypertrophy of mandibular angles such as square face and Chinese character face. At the same time, due to their mutual influence, patients with mandibular angle hypertrophy are often accompanied by masseter muscle hypertrophy.
References:
Baidu encyclopedia-masseter muscle