Pellegrino Gioacchino
Department of Odontostomatological Sciences, University of Naples Federico II, Via Pansini 5, Edificio 14, Naples, Italy.
Prog Orthod. 2005;6(1):102-12.
this 20,2 year-old girl presented with a class III malocclusion with severe crowding.
she was at the end of her growth with a severe skeletal and dental class III malocclusion with lower midline deviation and severe crowding. A concave profile, due to chin's prominence, was present. Lower vertical third of the face increased. No signs or symptoms of TMJ problems were present: lingual position of 12 and 22 is a potential problem for TMJ's health. The state of oral mucosa and gingiva was good. But oral hygiene was not good. Lower midline deviated 3 mm to the left side; canine and molar class I on the right side and class III on the left side. The sequence of her treatment was as follows: a) extraction of 15, 25, 35, 44; b) upper and lower arch fixed appliance for alignment, leveling, correction of lower midline and occlusal relationship; c) post-treatment retention.
这位20.2岁的女孩患有Ⅲ类错颌畸形，伴有严重牙列拥挤。
她生长发育已接近尾声，患有严重的骨骼及牙性Ⅲ类错颌畸形，伴有下颌中线偏移和严重牙列拥挤。由于下巴突出，面部呈凹面型。面部下三分之一高度增加。未出现颞下颌关节问题的体征或症状：12和22牙的舌侧位置对颞下颌关节健康存在潜在问题。口腔黏膜和牙龈状况良好。但口腔卫生不佳。下颌中线向左偏移3毫米；右侧尖牙和磨牙为Ⅰ类关系，左侧为Ⅲ类关系。她的治疗顺序如下：a）拔除15、25、35、44牙；b）上下牙弓固定矫治器，用于排齐、整平、纠正下颌中线和咬合关系；c）治疗后保持。
