A well-developed facial skull is the foundation of a beautiful face. Japanese aesthetic surgery experts have confirmed through research on the development degree of some women's facial skull bones that women widely recognized as beautiful often have healthy and well-developed facial skulls, especially the mandible, while women with average looks usually have underdeveloped facial skulls, with contracted mandibles and lack of facial立体感(stereoscopic sense). Some people believe it is related to genetics, while mandibular trauma infections before adulthood may also affect mandibular development.
Micrognathia - "short chin" cosmetic plastic surgery