TY - JOUR
T1 - Components of adult class III malocclusion
AU - Ellis, Edward
AU - McNamara, James A.
N1 - Funding Information:
Supported in part by USPHS grant DE-03610. * Assistant Professor, Department of Oral and Maxillofacial Surgery and Research Investigator, Center for Human Growth and Development, University of Michigan, Ann Arbor, Michigan. t Professor of Anatomy and Cell Biology and Research Scientist, Center for Human Growth and Development, University of Michigan.
PY - 1984/5
Y1 - 1984/5
N2 - To identify the skeletal and dental relationships of adults who have class III malocclusion, lateral cephalograms of 302 adult patients who had a class III molar and cuspid relationship were traced. Ninety-four of the patients had had presurgical orthodontic treatment and 208 had not. The tracings were digitized, and the following sets of measures were analyzed: maxillary skeletal position; maxillary dentoalveolar position; mandibular dentoalveolar position; and mandibular skeletal position. In addition, the mandibular plane angle and lower anterior facial height were measured as an indicator of vertical facial dimensions. None of these values demonstrated significant gender differences except lower anterior facial height; therefore, the subjects were treated as a group. Although there was considerable variation among patients, the most common combination of variables was a retrusive maxilla, protrusive maxillary incisors, retrusive mandibular incisors, a protrusive mandible, and a long lower facial height.
AB - To identify the skeletal and dental relationships of adults who have class III malocclusion, lateral cephalograms of 302 adult patients who had a class III molar and cuspid relationship were traced. Ninety-four of the patients had had presurgical orthodontic treatment and 208 had not. The tracings were digitized, and the following sets of measures were analyzed: maxillary skeletal position; maxillary dentoalveolar position; mandibular dentoalveolar position; and mandibular skeletal position. In addition, the mandibular plane angle and lower anterior facial height were measured as an indicator of vertical facial dimensions. None of these values demonstrated significant gender differences except lower anterior facial height; therefore, the subjects were treated as a group. Although there was considerable variation among patients, the most common combination of variables was a retrusive maxilla, protrusive maxillary incisors, retrusive mandibular incisors, a protrusive mandible, and a long lower facial height.
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U2 - 10.1016/0278-2391(84)90109-5
DO - 10.1016/0278-2391(84)90109-5
M3 - Article
C2 - 6585502
AN - SCOPUS:0021327420
SN - 0278-2391
VL - 42
SP - 295
EP - 305
JO - Journal of Oral and Maxillofacial Surgery
JF - Journal of Oral and Maxillofacial Surgery
IS - 5
ER -