Optimum design for fixed partial dentures made of hybrid resin with glass fiber reinforcement by finite element analysis: effect of vertical reinforced thickness on fiber frame.
By means of finite element analysis, the optimal thickness of fiber framework placed in a fiber-reinforced composite bridge replacing the mandibular first molar was obtained. Test results demonstrated that more than 30% maximum principal stress was reduced by reinforcing with fiber framework in a thickness of up to 0.6 mm for 1.5-mm occlusal clearance. Indeed, maximum principal stress generated in lower embrasure of connectors was reduced from 107 MPa to 70 MPa by maximizing reinforcement effect.
Ootaki
Masayuki
M
Department of Crown and Bridge, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi Chiyoda-ku, Tokyo 102-8159, Japan.
Shin-Ya
Akikazu
A
Gomi
Harunori
H
Shin-Ya
Akiyoshi
A
Nakasone
Yuji
Y
D003188:Composite Resins / Q000737:chemistry*; D003198:Computer Simulation; D003799:Dental Stress Analysis / Q000379:methods*; D003779:Denture Design; D003830:Denture, Partial, Fixed; D020342:Finite Element Analysis; D005898:Glass; D006801:Humans; D008334:Mandible; D008422:Materials Testing; D008689:Methacrylates; D008963:Molar; D011140:Polyurethanes
D003188:Composite Resins; D008689:Methacrylates; D011140:Polyurethanes; C009753:fiberglass; C091839:urethanetrimethacrylate