Assessment of the fitness of removable partial denture frameworks manufactured using additive manufacturing/selective laser melting

被引:0
|
作者
Saadaldin, Selma A. [1 ]
Rizkalla, Amin S. [2 ]
Eldwakhly, Ezahraa A. [3 ,4 ]
Soliman, Mai [4 ]
Aldegheishem, Alhanoof [4 ]
机构
[1] Western Univ, Schulich Sch Med & Dent, Prosthodont Div, London, ON N6A 5C1, Canada
[2] Western Univ, Schulich Sch Med & Dent, Dept Chem & Biochem Engn, London, ON N6G 1G8, Canada
[3] Cairo Univ, Fac Dent, Dept Fixed Prosthodont, Cairo 4240310, Egypt
[4] Princess Nourah Bint Abdulrahman Univ, Coll Dent, Clin Dent Sci Dept, Riyadh 13414, Saudi Arabia
关键词
Fitness Accuracy; Selective Laser Melting; 3D Printing; Additive Manufacturing Micro-CT; RPD Frameworks; TECHNOLOGY; ACCURACY;
D O I
10.1166/mex.2022.2201
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
IP2038 10920 O Th 20 O t 2022 065634 The study compared the fitness accuracy of digitally produced removable partial denture frameworks using Copyright: American Scientific Publishers 3D printing selective laser melting technology. Thrgroups were fabricated; the first group where the frameworks were produced digitally through digital designing and then the frameworks were printed by selective laser melting additive manufacturing (3DP-G1). The second frameworks groups were produced by the lost wax/casting method (C-G2) and the third group was produced by scanning wax-up of the framework and then printed as in the first group (SP-G3). A total of 6 frameworks were produced from each group. Micro-CT images were used to investigate spaces under the frameworks seated on the master casts at five specified locations. Finally, spaces at the same locations were measured by using light-body polyvinyl siloxane impression materials. There was no significant difference among the spaces calculated underneath the 18 frameworks for the three various groups at a significance level of (a = .05) either at the CT-scan images or by using the silicone registration materials. Removable partial denture frameworks that were produced by 3D printing technology using selective laser melting additive manufacturing have a high level of fitness accuracy comparable to the ones produced by the lost wax/casting method.
引用
收藏
页码:735 / 742
页数:8
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