title: [Relationship between the mandibular hypoplasia and temporomandibular joint internal derangement in adolescents with skeletal class Ⅱ malocclusion].
abstract: Mandibular hypoplasia is very common clinically. Studies have reported that temporomandibular joint internal derangement (TMJID) might manifest as mandibular retrusion, and whether there is a direct correlation between them remains controversial in academia. On the other hand, for adolescent patients with skeletal class Ⅱ malocclusion, the growth of mandible could be motivated by orthopedic force, and then the mandibular retrusion corrected. However, if TMJID is the direct cause of mandibular retrusion, orthopedic treatment will not have a significant effect on it. Base on literature review and analysis as well as our own research, this article will review the distribution of structural abnormalities of the temporomandibular joint in adolescents with mandibular hypoplasia and its association with skeletal class Ⅱ malocclusion, as well as the effect of TMJID on the treatment of skeletal class Ⅱ malocclusion in adolescents.
authors.affiliation: Department of Cranio-Maxilla Facial Science, Center of Cranio-Facial Orthodontics, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine & Shanghai Key Laboratory of Stomatology, Shanghai 200011, China.
authors.forename: B
authors.initials: B
authors.lastname: Fang
mesh_terms: D000293:Adolescent; D006801:Humans; D008312:Malocclusion, Angle Class II / Q000628:therapy*; D008334:Mandible / Q000002:abnormalities* / Q000254:growth & development; D063173:Retrognathia / Q000209:etiology / Q000628:therapy*; D013704:Temporomandibular Joint / Q000002:abnormalities*; D013705:Temporomandibular Joint Disorders / Q000150:complications*
keywords: Malocclusion, Angle class Ⅱ; Orthodontic appliances, functional; Temporomandibular joint internal derangement