title: Gummy smile.
mesh_terms: D005149:Facial Expression; D005881:Gingiva; D006801:Humans; D008046:Lip / Q000601:surgery*; D008437:Maxilla / Q000033:anatomy & histology / Q000601:surgery*; D008722:Methods; D012904:Smiling; D013518:Surgery, Plastic / Q000379:methods*