[Posterior glass fiber-reinforced composite resin-bonded fixed partial dentures: A 3-dimensional modeling and finite element numerical analysis].
The method of modeling and mesh generation about 3-unit tooth/restoration complex were established. The three-dimensional finite element models were subjected to four types of occlusal load applied to pontic element to evaluate 3 fiber framework designs and 3 cavities preparation configurations. By comparing the difference of stress distribution, following conclusions were obtained: the principal stress under buccal-lingual cusp load in traditional fiber framework pontic increased by 6.22% compared to that in pure composite resin pontic; optimized fiber framework obviously reduced stress level under any load; modified cavities exhibited better stress transfer and decreased share stress at adhesive interface than traditional cavities.
Han
Jingyun
J
College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100022, China.
Fei
Renyuan
R
Li
Yansheng
Y
Zhang
Lei
L
D003188:Composite Resins; D000044:Dental Abutments; D003764:Dental Materials; D003799:Dental Stress Analysis; D020342:Finite Element Analysis; D005898:Glass; D008962:Models, Theoretical
D003188:Composite Resins; D003764:Dental Materials; C009753:fiberglass