不同种类托槽矫治器在青少年牙颌畸形矫正中的效果分析

Analysis of effect of different kinds of brackets in correction of adolescents with dentofacial deformity

目的分析青少年牙颌畸形矫正中应用不同种类托槽矫治器的效果。方法选择2018年8月至2019年10月周口市妇幼保健院收治的74例青少年牙颌畸形患者,根据电脑随机盲选法,分为研究组和对照组各37例。对照组应用直丝弓托槽矫治器治疗,研究组应用自锁托槽矫治器治疗。治疗前、治疗2年后,比较两组菌斑指数(PLI)、牙龈指数(GI)、探诊深度(GCD)及龈沟液量(GCF)、NP-FH角、Y轴角、SNA角;治疗前、治疗30 d后,比较两组基质金属蛋白酶-2(MMP-2)、地诺前列腺素(PGE2)、谷草转氨酶(AST)值;比较两组美学效果。结果治疗2年后,两组PLI、GI、PGE2、AST均下降,且研究组低于对照组,差异有统计学意义(P<0.05);两组探诊深度、龈沟液量、NP-FH角、SNA角、Y轴角、MMP-2值均增加,且研究组探诊深度、龈沟液量、NP-FH角、MMP-2值低于对照组,差异有统计学意义(P<0.05);研究组SNA角和Y轴角高于对照组,差异有统计学意义(P<0.05);研究组总美学率(94.59%)高于对照组(72.97%),差异有统计学意义(P<0.05)。结论相较于传统直丝弓托槽矫治器,自锁托槽矫治器用于矫正青少年牙颌畸形,矫治效果更为理想,可改善牙周健康状态,减轻口腔炎症反应,且美学效果理想,可行性高。

Objective To analyze the effects of different types of brackets in the correction of adolescents with dentofa⁃cial deformities.Methods A total of 74 adolescent patients with dentofacial deformity admitted to Zhoukou City Mater⁃nal and Child Health Care Hospital from August 2018 to October 2019 were selected and divided into a study group and a control group with 37 cases each according to the computerized random blind selection method.The control group was treated with straight wire bracket appliances,and the study group was treated with self-locking bracket appliances.Be⁃fore treatment and 2 years after treatment,compared the two groups of plaque index(PLI),gingival index(GI),pro⁃bing depth(GCD)and gingival crevicular fluid volume(GCF),NP-FH angle,Y-axis angle,SNA angle;Before treatment and 30 days after treatment,compare the values of matrix metalloproteinase-2(MMP-2),dinoprostaglandin(PGE2)and aspartate aminotransferase(AST)between the two groups;Compared the aesthetic effects of the two groups.Results After 2 years of treatment,the PLI,GI,PGE2,and AST of the two groups decreased,lower in the study group than in the control group,differences were statistically significant(P<0.05);Probing depth of two groups depth,gingival crevicular fluid volume,NP-FH angle,SNA angle,Y-axis angle,and MMP-2 values all in⁃creased,and the study group’s probing depth,gingival crevicular fluid volume,NP-FH angle,and MMP-2 values were all less than those of control group,differences were statistically significant(P<0.05);The SNA angle and Y-axis angle were higher in the study group than in the control group,differences were statistically significant(P<0.05);The overall aesthetic rate was higher in the study group(94.59%)than that in the control group(72.97%),differ⁃ences were statistically significant(P<0.05).Conclusion Compared with the traditional straight wire bracket appli⁃ance,the self-locking bracket appliance is used to correct young people’s dentofacial deformity,and the correction effect is more ideal.It can improve the periodontal health,reduce the oral inflammation,and has an ideal aesthetic effect,high feasibility.