Construction of 3-dimensional finite element model of resin-bonded-fixed-partial dentures by dimensional laser scanning and reverse engineering
- VernacularTitle:激光扫描结合逆向工程技术建立粘结桥的三维有限元模型
- Author:
Lei ZHANG
;
Qiufei XIE
;
Jingyun HAN
;
Yong WANG
;
Hailan FENG
- Publication Type:Journal Article
- Keywords:
Three dimensional finite element analysis;
Glass fiber;
Resin-bonded-fixed-partial dentures;
Reverse Engineering
- From:
Journal of Practical Stomatology
2000;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To explore a method for setting up three dimensional finite element model of posterior glass fiber reinforced composite resin-bonded-fixed-partial dentures (GFRC-RBFPD) including restoration, periodontal tissue and alveolar bone. Methods:A stone model was fabricated including abutments and pontic of restoration, then it was scanned with laser scanner. Acquired data were integrated in Geomagic 5.0. Basic 3D geometric model was established. Different parts of abutement and prosthesis were designed in I-DEAS 10 NX Series and Geomagic, then periodontal tissue and alveolar bone were set up in Geomagic 5.0. Completed 3D geometric model was input into MSC.Marc Mentat 2003 for mesh generation. Boundary conditions were defined. Model was calculated in Mentat 2003. Results:3D geometric model and finite element model including GFRC-RBFPD, abutments, periodontal membrane and bone (bone lamina dura,cortical bone and cancellous bone) were established.Little contour information was lost, comparability between models was improved.Conclusion:The 3-dimensional laser scanning technique, CAD and mesh generation technique are effective in the establishment of 3-dimensional finite element model of GFRC-RBFPD.
