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  • Title: Mandibular form and position in 10-year-old boys.
    Author: Kerr WJ, Miller S, Ayme B, Wilhelm N.
    Journal: Am J Orthod Dentofacial Orthop; 1994 Aug; 106(2):115-20. PubMed ID: 8059745.
    Abstract:
    It is unclear whether malocclusion characterized by jaw discrepancy is caused by variations in mandibular position, mandibular size, or a combination of the two. To clarify the situation, the mandibular outlines of 124 10-year-old boys, equally divided among the Angle classes, were generated from cephalograms with a computer plotting technique. The mean plots for each of the groups were superimposed on S-N and Go-Gn. These showed mandibular form and size to be similar in the Class I and Class III groups and in both divisions of Class II. The position of Class III mandibles was more anterior and rotated forward in relation to the cranial base compared with the other groups. Statistical analysis confirmed these findings. There was evidence to support the idea that Class II, Division 2 malocclusion is largely a dentoalveolar rather than a skeletal entity.
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