title: Skeletal maturation of the cervical vertebrae: association with various types of malocclusion.
abstract: The identification of the skeletal maturation stage of the cervical vertebrae has proven an important reference for orthodontic diagnosis. The aim of the present study was to determine the association between the skeletal maturation stage of the cervical vertebrae and types of malocclusion according to the age and gender of participants. A total of 361 individuals (168 males and 193 females) between 8 and 14 years of age were selected from a convenience sample. Malocclusions were diagnosed through study models using the Angle classification. Maturation stages of the cervical vertebrae were determined using the method proposed by Hassel and Farman. Statistical analysis involved the chi-square test (p £ 0.05) and multiple logistic regression (forward stepwise procedure). Significant differences were observed between the stage of skeletal maturation of the cervical vertebrae and gender at ages 11, 12 and 14 years. Males with Class II malocclusion were twice as likely to be in Stage 1 or 2 of cervical vertebra maturation than individuals with Class I malocclusion (OR = 2.1 [CI 95%, 1.33-3.18]). There were no differences between individuals with Class I and Class III malocclusions. The association between skeletal maturation of the cervical vertebrae and type of malocclusion was significant, suggesting a skeletal component in the determination of Class II malocclusions.
authors.affiliation: Department of Orthodontics, School of Dentistry, University of Vale do Rio Verde, Três Corações, MG, Brazil.
authors.forename: Mônica Costa
authors.initials: MC
authors.lastname: Armond
authors.forename: Rodrigo
authors.initials: R
authors.lastname: Generoso
authors.forename: Saulo Gabriel Moreira
authors.initials: SG
authors.lastname: Falci
authors.forename: Maria Letícia
authors.initials: ML
authors.lastname: Ramos-Jorge
authors.forename: Leandro Silva
authors.initials: LS
authors.lastname: Marques
mesh_terms: D000293:Adolescent; D000367:Age Factors; D001846:Bone Development / Q000502:physiology*; D002508:Cephalometry; D002574:Cervical Vertebrae / Q000000981:diagnostic imaging / Q000254:growth & development*; D016009:Chi-Square Distribution; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008310:Malocclusion / Q000145:classification / Q000209:etiology*; D011859:Radiography; D012737:Sex Factors