陶材焼付鋳造冠の製作時におけるメタルコーピングの変形に関する研究(機械要素,潤滑,工作,生産管理など)

概要

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A metal-ceramic crown used in the clinical stage is manufactured by burning the dental porcelain on the metal coping. Then the deformation of the crown is occurred by a hardening shrinkage and thermal shrinkage. Therefore, a study on deformation of the metal coping in the making of metal-ceramic crowns had been done by using the finite element method (FEM). As a result, the following conclusions were obtained. (1) Neighborhoods of ends of the collar extended into outsides of the crown. In particularly, the largest deformation was observed at ends of the collar. (2) Extension of neighborhoods of end of the collar increased with increasing the length of the collar. These results coincide with results of experiment.
社団法人日本機械学会の論文
2003-07-25