Evaluation of the fit of pure titanium crown 3D-printed by electron beam melting (EBM)technology
10.3969/j.issn.1001-3733.2016.02.004
- VernacularTitle:电子束熔融（EBM）技术3D 打印纯钛冠的适合性研究
- Author:
Jinghong MAO
;
Kenan CHEN
;
Bo GAO
- Publication Type:Journal Article
- Keywords:
Electron beam melting(EBM);
Crown;
Fit;
CAD/CAM;
3D Printing
- From:
Journal of Practical Stomatology
2016;32(2):173-177
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To study the fit of pure titanium single crown fabricated by electron beam melting(EBM).Methods:Pure titanium crowns were fabricated by EBM,selective laser melting(SLM),CAD/CAM(R +K and DMG)and conventional lost wax technique(LW)respectively(n =5).Marginal and internal gap was copied by light-body silicone and measured using a digital mi-croscope .The data of marginal gap(MG)and internal gap(IG)were statisticaly analysed by ANOVA and SPSS statistical package version 17.0.Results:The MG and IG(μm)of pure titanium crowns in EBM group were 38.42 ±6.72 and 105.54 ±33.18,in SLMgroup 38.63 ±6.82 and 114.63 ±52.18,in DMG CAD/CAMgroup 26.18 ±4.36 and 102.18 ±40.81,in R +K CAD/CAM group 26.98 ±4.44 and 102.24 ±25.30,in LW group were 42.61 ±5.73 and 102.98 ±45.67,respectively.The marginal fit of the EBMgroup was significantly smaller than 120 μm of the generally accepted clinical standards.In the 2 CAD/CAM groups the MG was smaller than that of other 3 groups(P <0.05).The IG of the 5 groups were not statisticaly different(P >0.05).Conclu-sion:The marginal fit of titanium single crown fabricated by EBMis similar to that by SLM,better than that of LW and inferior than that of CAD/CAM.The internal fit of the crowns made by the 5 systems is similar.
