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Titolo: Finite element analysis on preferable Ibar clasp shape
Autore: Sato, Y; Tsuga, K; Abe, Y; Asahara, S; Akagawa, Y;
 Indirizzi:
 Hiroshima Univ, Fac Dent, Dept Removable Prosthodont, Minami Ku, Hiroshima7348553, Japan Hiroshima Univ Hiroshima Japan 7348553 inami Ku, Hiroshima7348553, Japan
 Titolo Testata:
 JOURNAL OF ORAL REHABILITATION
fascicolo: 5,
volume: 28,
anno: 2001,
pagine: 413  417
 SICI:
 0305182X(200105)28:5<413:FEAOPI>2.0.ZU;2K
 Fonte:
 ISI
 Lingua:
 ENG
 Soggetto:
 DIMENSIONS;
 Keywords:
 FEM; RPDS; Ibar clasp; design biomechanics; RPI;
 Tipo documento:
 Article
 Natura:
 Periodico
 Settore Disciplinare:
 Clinical Medicine
 Citazioni:
 10
 Recensione:
 Indirizzi per estratti:
 Indirizzo: Sato, Y Hiroshima Univ, Fac Dent, Dept Removable Prosthodont, Minami Ku, Kasumi 123, Hiroshima 7348553, Japan Hiroshima Univ Kasumi 123 Hiroshima Japan 7348553 348553, Japan



 Citazione:
 Y. Sato et al., "Finite element analysis on preferable Ibar clasp shape", J ORAL REH, 28(5), 2001, pp. 413417
Abstract
An Ibar clasp is one of the most popular direct retainers for distalextension removable partial dentures. However, no adequate information is available on preferable shape as determined by biomechanics. This study aimed (1) to investigate, by finite element analysis (FEA), the dimensions and stress of Ibar clasps having the same stiffness, and (2) to estimate a mechanically preferable clasp design. Threedimensional FEA models of Ibar claspswere created with vertical and horizontal straight sections connected by acurved section characterized by six parameters: thickness of the clasp tip, width of the clasp tip, radius of the curvature, horizontal distance between the base and the vertical axis, vertical dimension between the tip and the horizontal axis, and taper (change of width per unit length along the axis). Stress was calculated with a concentrated load of 5 N applied 2 mm from the tip of the clasp in the buccal direction. A thinner and wider clasp having an taper of 0.0200.023 and radius of curvature of 2.753.00 showed less stress. The results suggest that such a shape might be the preferable Ibar clasp shape as biomechanical viewpoint.
ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 02/04/20 alle ore 02:42:02