Design and fabrication of new removable partial dentures and their accuracy and suitability
10.3969/j.issn.1001-3733.2024.04.007
- VernacularTitle:新构型可摘局部义齿设计制作及精度与适合性研究
- Author:
Yaoyao YANG
1
;
Tao WEN
;
Liaoliao WANG
;
Jiang WU
Author Information
1. 710032 西安,口颌系统重建与再生全国重点实验室,国家口腔疾病临床医学研究中心,陕西省口腔医学重点实验室,空军军医大学第三附属医院口腔修复科
- Keywords:
Digital design;
Selective laser melting;
Removable partial denture;
Accuracy;
Suitability
- From:
Journal of Practical Stomatology
2024;40(4):494-498
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To design and manufacture removable partial dentures with a new configuration,and to evaluate their accuracy and suitability.Method:A structure with abutment tooth preparation was designed in the mesh structure of the bracket.The resin substrate of buccal and tissue surfaces was designed using a layered method.Selective laser melting(SLM),digital light processing(DLP)and CNC cutting techniques were used to produce a pure titanium new configuration removable local denture bracket,base res-in part and crown,respectively,followed by splicing and assembling the new removable partial denture configuration(Test group).The samples in control group was a traditional design removable partial denture bracket made by SLM technology,and the final denture was completed by conventional tooth placement and filling with glue.10 samples were included in each group.The accuracy and suita-bility of the sample were examined,data were statistically analyzed.Results:The accuracy(3D deviation,mm)of the test and control group was 0.153±0.019 and 0.153±0.011(P=0.978),the overall suitability(3D deviation,mm)of the 2 groups was 0.191±0.006 and 0.187±0.007(P=0.218),respectively.Conclusion:The configurtion is simplified and more feassible to design and manufac-ture removable partial denture with proper accuracy and suitability.
