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  • Title: Dentofacial growth changes in subjects with untreated Class II malocclusion from late puberty through young adulthood.
    Author: Baccetti T, Stahl F, McNamara JA.
    Journal: Am J Orthod Dentofacial Orthop; 2009 Feb; 135(2):148-54. PubMed ID: 19201320.
    Abstract:
    INTRODUCTION: The purpose of this longitudinal study was to compare dentofacial growth changes in untreated subjects with Class II Division 1 malocclusion with those in subjects with normal (Class I) occlusion from late puberty through young adulthood. METHODS: The Class II Division 1 sample consisted of 23 subjects (10 male, 13 female). The Class I sample included 30 subjects (13 male, 17 female). The lateral cephalograms of the subjects in both groups were analyzed at 2 consecutive stages of development: T1, postpubertal observation (cervical vertebral maturation stage 6), and T2, young adulthood stage. The average time between T1 and T2 was 3.5 years. The statistical comparisons of the growth changes in the 2 groups were performed with Mann-Whitney U tests. RESULTS: From late puberty through young adulthood, dentofacial growth in subjects with untreated Class II malocclusion does not show significant differences when compared with that observed in untreated subjects with normal occlusion. CONCLUSIONS: These findings show that Class II dentoskeletal disharmony does not exhibit significant growth change from late puberty through young adulthood.
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