摘要
Abstract
Objective To compare the curative effect of orthodontic traction treatment for different age patients with maxillary embedded maxillary teeth ,and to analysis of the effect of age on orthodontic traction treatment success rate .Methods 135 cases of maxillary embedded maxillary teeth patients were selected as the observation objects ,and were divided into adult group (60 cases) and teenagers group(75 cases) according to age .The patients of the two group did orthodontic traction treatment ,then we compare the curative effect of two groups .Results The treatment time of the adult group was (12 .1 ± 3 .2)months ,which was longer than that of the teenagers group was (8 .3 ± 2 .6)months ,the comparative difference was statistically significant (t=7 .61 ,P<0 .05) .The treatment total effective rate of the adult group was 83 .33% ,wich was less than that of the teenagers group was 98 .67% ,the com-parative difference was statistically significant (χ2 =10 .47 ,P<0 .05) .Before treatment ,all of the patients ,the maxillary embedded maxillary teeth did not appear to its normal position ,clearance is not enough ,and alveolar ridge was no absorption .After treatment , the maxillary embedded maxillary teeth of patients with effective treatment eruption was in place ,the tooth length axis was normal , no obvious root absorption ,and periapical tissue was normal ,but the adults group patients had different level of gums shrink and bad morphology .The maxillary embedded maxillary teeth of the patients with Ineffective treatment did not reach the designated po-sition ,and root dentin dysplasia .Conclusion the orthodontic traction treatment for maxillary embedded maxillary teeth patients ,the treatment effect of the adult was less than the teenagers ,and the treatment time was longer than the teenagers .So the early detec-tion ,early treatment for maxillary embedded maxillary teeth treatment has great significance .关键词
上颌埋伏阻生尖牙/成人/青少年/正畸牵引治疗Key words
maxillary embedded maxillary teeth/adult/Adolescents/orthodontic traction treatment
