The influence of modification of cavity design on distribution of stresses in a restored molar

J.H.P. Vree, de; M.C.R.B. Peters; A.J.M. Plasschaert

doi:10.1177/00220345840630101001

The influence of modification of cavity design on distribution of stresses in a restored molar

J.H.P. Vree, de, M.C.R.B. Peters, A.J.M. Plasschaert

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Abstract

In this study, two different cavity designs were compared from a mechanical point of view: (a) an axisymmetric model of a conventional class 1 cavity preparation and restoration; and (b) an axisymmetric model of a modified cavity design. The modified design was characterized by a cavo-surface angle (c.s.a.) of approximately 90° and a stepped cavity wall. Using a mathematical model, stresses were calculated by finite element analysis to compare the force distribution. It is concluded that the clinical superiority of the modified cavity design, with respect to the marginal breakdown of the amalgam restoration, can be supported by stress calculations.

Original language	English
Pages (from-to)	1217-1220
Journal	Journal of Dental Research
Volume	63
Issue number	10
DOIs	https://doi.org/10.1177/00220345840630101001
Publication status	Published - 1984

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title = "The influence of modification of cavity design on distribution of stresses in a restored molar",

abstract = "In this study, two different cavity designs were compared from a mechanical point of view: (a) an axisymmetric model of a conventional class 1 cavity preparation and restoration; and (b) an axisymmetric model of a modified cavity design. The modified design was characterized by a cavo-surface angle (c.s.a.) of approximately 90° and a stepped cavity wall. Using a mathematical model, stresses were calculated by finite element analysis to compare the force distribution. It is concluded that the clinical superiority of the modified cavity design, with respect to the marginal breakdown of the amalgam restoration, can be supported by stress calculations.",

author = "{Vree, de}, J.H.P. and M.C.R.B. Peters and A.J.M. Plasschaert",

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AU - Vree, de, J.H.P.

AU - Peters, M.C.R.B.

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PY - 1984

Y1 - 1984

N2 - In this study, two different cavity designs were compared from a mechanical point of view: (a) an axisymmetric model of a conventional class 1 cavity preparation and restoration; and (b) an axisymmetric model of a modified cavity design. The modified design was characterized by a cavo-surface angle (c.s.a.) of approximately 90° and a stepped cavity wall. Using a mathematical model, stresses were calculated by finite element analysis to compare the force distribution. It is concluded that the clinical superiority of the modified cavity design, with respect to the marginal breakdown of the amalgam restoration, can be supported by stress calculations.

AB - In this study, two different cavity designs were compared from a mechanical point of view: (a) an axisymmetric model of a conventional class 1 cavity preparation and restoration; and (b) an axisymmetric model of a modified cavity design. The modified design was characterized by a cavo-surface angle (c.s.a.) of approximately 90° and a stepped cavity wall. Using a mathematical model, stresses were calculated by finite element analysis to compare the force distribution. It is concluded that the clinical superiority of the modified cavity design, with respect to the marginal breakdown of the amalgam restoration, can be supported by stress calculations.

U2 - 10.1177/00220345840630101001

DO - 10.1177/00220345840630101001

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SP - 1217

EP - 1220

JO - Journal of Dental Research

JF - Journal of Dental Research

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The influence of modification of cavity design on distribution of stresses in a restored molar

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