title: [Application of Chu's aesthetic gauges in corwn lengthening surgery in a case].
authors.forename: Yanli
authors.initials: Y
authors.lastname: Yin
authors.affiliation: Email: jollyzldoc@163.com.
authors.forename: Lei
authors.initials: L
authors.lastname: Zhao
mesh_terms: D016556:Crown Lengthening / Q000592:standards*; D004955:Esthetics, Dental; D006801:Humans