Evaluation of Chronological Change of Body and Oral Function after Dental Im plant Treatment

Abstract

To clarify the effects of dental implant treatment on oral and physical function, chronological change between before and after treatment for six years was investigated in this study. In particular, the relationship between age at first visit and changes after treatment was focused. Eighty-two subjects who had four occlusal support areas restored by dental implant treatment. Four examinations were performed at baseline and during the follow-up periods. The test items were gum masticatory performance assessment, hand grip strength, and body component. To evaluate the effect of intervention with dental implant treatment, Friedman’s and post-hoc tests were used. Hand grip strength and mastication performance were significantly maintained during follow-up period in under and over 65 years. In over 65 years, a few items were significantly lower than at baseline. No significant difference was observed about skeletal muscle mass（%）, fat mass（%）, fat-free mas（%）, and leg（%）in under and over 65 years. These results indicated that hand grip strength and mastication performance were improved over a long period after dental implant treatment. It was speculated that the improvement in hand grip strength was associated with the recovery of systemic functions, especially in under 65 years old group.