3D打印无牙颌个别托盘的初步研究  

Preliminary study of 3D printing technology in edentulous jaw custom-tray fabricating technique

作　　者：林园园[1] 郑秀丽[1] 廖国婷 魏天骄[1] 冯剑桥[1] 

机构地区：[1]哈尔滨医科大学附属口腔医学院修复科,黑龙江哈尔滨150001

出　　处：《口腔医学》2016年第12期1065-1069,共5页Stomatology

基　　金：黑龙江省教育厅科研课题(12531402)

摘　　要：目的探讨3D打印无牙颌个别托盘较传统方法制作的个别托盘1是否能有效减少临床椅旁操作时间;2托盘印模面处理后与藻酸盐印模材间的固位强度比较和变化。方法 1选取全口义齿修复患者10例,上颌为A组,下颌为B组,记录3D打印法和传统方法(自凝丙烯酸树脂)制作个别托盘的椅旁工作时间;2测量3D打印托盘和传统托盘(光固化树脂和自凝丙烯酸树脂)的印模面3种情况下(以不处理、打孔和涂布托盘粘接剂)与藻酸盐印模材间的固位强度。结果 1A、B组3D打印法分别是34.37、28.19 min,传统法分别是64.95、63.94 min,3D打印无牙颌个别托盘的时间均显著少于传统法的时间(P<0.05);23D打印托盘表面涂粘接剂组固位强度为2.31 N/cm^2,为组内最佳(析因方差分析P<0.01)。结论 3D打印无牙颌个别托盘相对于传统方法可有效减少椅旁工作时间;与藻酸盐印模材间具有良好的固位强度,打孔及表面涂托盘粘接剂均可明显提高其固位强度,表面涂粘接剂效果更明显。Objective 1 To evaluate whether manufacturing edentulous jaw individual tray by 3D printing can effectively reduce the clinical chair side time compared with traditional method. 2 To compare the fixation strength and changes between alginate impression and the impression surface of trays [3D printing tray（Polylactic acid/PLA）,traditional tray（acrylic resin and light-cured resin） ]after dealt with different ways. Methods 1 Select ten models of edentulate patients,then screen maxillary（A） and mandible（B）（n =10）. Record the chair side time of fabricating individual trays in 3D and traditional ways. 2 Handle the trays by wontfix,the tray binder and punching,measure the fixation strength between the impression surface of 3D printing and traditional trays in the above three conditions and the alginate impression. Results ① The chair side time of 3D printing trays were 34. 37 min（A） and 28. 19 min（B）,while traditional trays were 64. 95 min（A） and 63. 94 min（B）. 3D printing tray cost less time than traditional tray（P〈0. 05）.② The trays dealt with tray binder obtained best fixation strength in 3D printing group,which was 2. 31 N/cm^2（ANOVA Factorial design P〈 0. 01）. Conclusion ① Compared with traditional tray,3D printing tray can reduce the chair time effectively. ② 3D printing tray has nice fixation strength,and we can improve the fixation strength by punching or surface tray adhesive,the latter having more obvious effect.

关 键 词：快速成型技术 3D打印 无牙颌个别托盘 椅旁工作时间 固位强度 

分 类 号：R783.2[医药卫生—口腔医学]