部分床義歯の動揺解析 : 第1報遊離端義歯の動揺とその定量化について

概要

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Excess denture movement during function may cause to jeopardize the resorpLion of the residual ridges and tlae mechanical trauma on the abutments in the partially dentate mouth. A removable partial denture (R. P. D.'s) should be so constructed that the artificial teeth on the denture base will be stabilized in their spatial position by way of the compensatory support due to the remaining abutments and the residual ridges.In this pilot study, the ordinary denture movement, that is the denture dynamics in function of the free end saddle R. P. D.'s was measured in the test denture assembly. The denture dynamics was assessed in two ways : The displacement sensors revealed the vertical and the horizontal movement of the denture base during function. They were based on the field magnetic effect and with good lineality. Tiny accerelometer was attached to the denture baseto detect the accerelation during function. Ordinary mastication was not interefered by both methods. The Author has already reported the palpation test for diagnosing the denture dynamics of the free end saddles in clinics. This method was discussed objectively against the accerelometry on fifty patients. Two methods have revealed the good coincidence with each other to detect the dynamics of the free end saddles.
社団法人日本補綴歯科学会の論文
1989-04-01