Evaluation of the fit of pure titanium crown 3D-printed by electron beam melting (EBM)technology / 实用口腔医学杂志
Journal of Practical Stomatology
;
(6): 173-177, 2016.
Article
in Chinese
| WPRIM
| ID: wpr-486043
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).Conclu-sionThe 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.
Full text:
Available
Index:
WPRIM (Western Pacific)
Type of study:
Practice guideline
Language:
Chinese
Journal:
Journal of Practical Stomatology
Year:
2016
Type:
Article
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