Stress analysis of clasps made of glass fiber-reinforced composite material using three-dimensional finite element method: influence of shape in cross and longitudinal sections of circumferential clasp arms.
The purpose of this study was to investigate the effects of different cross-sectional shapes and presence of taper on stress distribution in clasp arms made of glass fiber-reinforced composite (FRC) material. Stress analysis of clasps was performed under a constant load (5 N) using a three-dimensional finite element method with due consideration to the anisotropy of unidirectional FRC material. Results were then compared with clasp arms made of metal- an isotropic material. It was found that both FRC clasps and metal clasps yielded similar results. As for the displacement of clasp arms with a basic cross-sectional shape under a load of 5 N, the amount of displacement showed that FRC clasps provided sufficient retentive force required for clinical application.
Maruyama
Hiromi
H
Department of Oral and Maxillofacial Prosthodontics, Field of Oral and Maxillofacial Rehabilitation, Course for Advanced Therapeutics, Kagoshima University Graduate School of Medical and Dental Sciences, Japan. maru@dentb.hal.kagoshima-u.ac.jp
Hamano
Tohru
T
Kishita
Chie
C
Nishi
Yasuhiro
Y
Kawamoto
Shinichiro
S
Nagaoka
Eiichi
E
D000180:Acrylic Resins / Q000737:chemistry*; D003188:Composite Resins / Q000737:chemistry*; D003722:Dental Alloys / Q000737:chemistry; D016734:Dental Clasps; D017267:Dental Prosthesis Design / Q000379:methods*; D003799:Dental Stress Analysis / Q000379:methods*; D020342:Finite Element Analysis; D011140:Polyurethanes / Q000737:chemistry*
D000180:Acrylic Resins; C029012:Composite Dental Resin; D003188:Composite Resins; D003722:Dental Alloys; D011140:Polyurethanes