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颅面部的生长发育是指颅面和口腔的生长发育或颅、颌、面、牙合的生长发育,是机体生长发育的一部分[1]。错牙合畸形是口腔系统疾病中继龋病、牙周病之后的第三大高发病率疾病。而在不同类型的错牙合畸形中安氏I类所占比例最大。研究安氏I类患者生长发育过程中的内在规律、趋势和特点,有助于临床早期诊断和预测牙颌畸形的发生、发展和预后,为制
The growth and development of the craniofacial area refers to the growth and development of the craniofacial and oral cavity or the growth and development of the cranium, jaw, face and occlusal surface and is part of the growth and development of the body [1]. Malocclusion deformity is the oral system diseases, caries-relaying, after the periodontal disease the third highest incidence of disease. In different types of malocclusion, Angle Class I accounted for the largest proportion. To study the internal rules, trends and characteristics of the growth and development of Class I patients is of great help in the early diagnosis and prediction of the occurrence, development and prognosis of dento-jaw deformities