间接粘接技术在正畸托槽粘接强度分析  

Trength analysis of indirect bonding technique in orthodontic bracket bonding

作　　者：徐丹 XU Dan(Department of Stomatology,Tangshan Hongci Hospital,Tangshan 063000,Hebei China)

机构地区：[1]唐山弘慈医院,河北唐山063000

出　　处：《粘接》2022年第8期36-38,42,共4页Adhesion

摘　　要：研究间接粘接技术在正畸托槽粘连结中的强度。选取正畸患者共50例,需要1000个托槽,随机分成A、B组,各组25名患者(500个托槽);A组选择间接粘接技术,B组选择直接粘接技术,采用相同的方法进行粘接托槽,进行分析比较2个组在粘接后托槽的脱落率、粘结剂残留、抗剪切强度。结果表明:A组的脱落率小于B组,说明A组间接粘接法比B组直接粘接法牢固(P<0.05);B组的粘结剂残留比A组多(P<0.05);A组间接粘接法的抗剪切强度和强度范围比B组间接粘接法的强度小(P<0.05)。说明间接粘接法比直接粘接法在托槽的脱落、粘结剂的残留要少,间接粘接法提高了托槽的准确性,而且能使托槽粘接的更加牢固。To study the strength of indirect bonding technique in orthodontic bracket bonding,total of 50 orthodontic patients in Beijing People s Hospital who needed 1000 brackets were selected and randomly divided into group A and group B with 25 patients(500 brackets)in each group.Indirect bonding technology was selected for group A,and direct bonding technology was selected for group B.The same bonding method was used for bonding brackets.The shedding rate,binder residue and shear strength of the brackets after bonding were compared between the two groups.Results show that the shedding rate of group A was lower than that of group B,indicating that indirect bonding method in group A was stronger than direct bonding method in group B,and the difference was statistically significant(P<0.05).The adhesive residue in group B was more than that in group A,and the difference was statistically significant(P<0.05).The shear strength and strength range of indirect bonding method in group A were smaller than those of indirect bonding method in group B,and the difference was statistically significant(P<0.05),indicating that indirect bonding method is higher than the direct bonding method in terms of bracket shedding and binder residue.The indirect bonding method can improve the accuracy of bracket and make bracket bonding more firm.

关 键 词：间接粘接法 正畸托槽 强度分析 

分 类 号：TG494[金属学及工艺—焊接]