咬頭嵌合位における顎間距離の変化について : 咬合接触と咬合力の影響

概要

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The purpose of this study is to estimate the change of the intermaxillary distance of the intercuspation on the molar followed with the variation of the occlusal contacts and the occlusal force.Fifteen subjects with normal occlusion were organized into the following three groups : (1) The complete dentition group ; (2) The doujle crown at the first molar group ; (3) The first molar missing group. Using IP-checker and EMG activity, the variation of the molar intermaxillary distance on the occasion of changing the occlusal contact and the occlusal force were measured. The following results were obtained. 1. The intermaxillary distance of the molar intercuspation was affected by the variation of the EMG activity (occlusal force). 2. The change of the intermaxillary distance under the occlusal force was very different between the disappearance of the occlusal contacts as to the bridge included the last tooth and that of the first molar. 3. For this reason, the bite taking of bridge must be investigated from the new point of view.
社団法人日本補綴歯科学会の論文
1988-08-01