中国实用口腔科杂志

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应用3种光固化复合树脂材料制作的无托槽隐形矫治附件粘接效果比较研究

陈文儿钱玉芬   

  1. 上海交通大学医学院附属第九人民医院·口腔医学院口腔正畸科,上海市口腔医学重点实验室,上海市口腔医学研究所,国家口腔疾病临床研究中心,上海  200011
  • 出版日期:2019-04-15 发布日期:2019-05-29
  • 基金资助:

    国家自然科学基金(81771104)

  • Online:2019-04-15 Published:2019-05-29

摘要:

目的 比较应用FiltekTMZ350 XT通用纳米树脂、FiltekTMZ350 XT流动树脂、SonicFill超声树脂制作并粘接无托槽隐形矫治器附件的操作时间、附件粘接强度及放置精确性。方法 收集2018年3—8月于上海交通大学医学院附属第九人民医院口腔正畸科就诊患者因正畸治疗需拔除的健康下颌前磨牙120颗,随机分为A1、B1、C1、A2、B2、C2组,每组20颗。A1、A2组采用3M Adper Single Bond 2粘接剂和FiltekTMZ350 XT通用纳米树脂,B1、B2组采用3M Adper Single Bond 2粘接剂和FiltekTMZ350 XT流动树脂,C1、C2组采用OptiBond S粘接剂和SonicFill超声树脂。A1、B1、C1组测定制作并粘接附件的操作时间和附件的剪切强度,A2、B2、C2组通过测定三维设计附件与实际粘接附件的体积变化来比较附件放置精确性。结果 B1、C1组附件操作时间分别为(2.60 ± 0.32)min、(2.86 ± 0.35)min,均比A1组 [(3.52 ± 0.38)min] 短,差异有统计学意义(均P < 0.05)。C1组附件剪切强度[(23.49 ± 3.57)MPa]高于A1组[(20.53 ± 2.59)MPa]和B1组[(15.3 ± 2.33)MPa],差异均有统计学意义(均P < 0.05);A1组附件剪切强度高于B1组,差异有统计学意义(P < 0.05)。A2、B2、C2组实际粘接附件与三维设计附件比较,附件体积增量分别为(3.44 ± 1.12)mm3、(5.19 ± 2.10)mm3、(2.57 ± 0.89)mm3,其中A2、C2组附件体积变化小于B2组,差异有统计学意义(均P < 0.05)。结论 SonicFill超声树脂制作并粘接附件的操作时间短,附件粘接强度高、放置精确性好,更适宜临床推广。

关键词: 无托槽隐形矫治, 附件, 复合树脂, 粘接强度

Abstract:

Objective To evaluate the operation time,bonding strength and placement accuracy of three types of bonding materials(FiltekTMZ350 XT nano universal composite resin,FiltekTMZ350 XT flowable composite resin and SonicFill ultrasonic composite resin)in bonding attachments of removable thermoplastic appliance. Methods One hundred and twenty healthy mandible premolars that needed to be extracted for orthodontic treatment were collected from patients who visited Department of Oral Orthodontics of Shanghai Ninth People's Hospital,from March 2018 to August 2018,and they were randomly divided into six groups(A1,B1,C1,A2,B2,C2)with 20 teeth in each group. 3M Adper Single Bond2 adhesive and FiltekTMZ350 XT nano universal composite resin were used in group A1 and A2. 3M Adper Single Bond2 adhesive and FiltekTMZ350 XT flowable composite resin were used in group B1 and B2. OptiBond S adhesive and SonicFill ultrasonic composite resin were used in group C1 and C2. The operation time and shear strength were tested in group A1,B1 and C1. The placement accuracy was tested in group A2,B2 and C2 by measuring the volume change of 3D designed attachments and the attachments after actual bonding. Results The operation time of group B1 and C1 was(2.60 ± 0.32)min and (2.86 ± 0.35)min,respectively,both shorter than that of group A1 [(3.52 ± 0.38)min](P < 0.05). The shear strength of group C1 [(23.49 ± 3.57)MPa] was stronger than that of group A1 [(20.53 ± 2.59)MPa],and the shear strength of group A1 was stronger than that of group B1 [(15.3 ± 2.33)MPa](P < 0.05). The volume change of 3D designed attachments and the attachments after actual bonding of group A2,B2 and C2 was(3.44 ± 1.12)mm3,(5.19 ± 2.10)mm3 and (2.57 ± 0.89)mm3,respectively,and the volume change of group A2 and C2 was less than that of group B2 (P < 0.05). Conclusion The attachment made of SonicFill ultrasonic resin has the advantage of short operation time,strong bonding strength and good placement accuracy,which is more suitable for clinical promotion.

Key words: removable thermoplastic appliance, attachment, composite resin, bonding strength