Short-term improvement of masticatory function after implant restoration
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Purpose: Dental implants present several advantages over other tooth replacement options. However, there has been little research on masticatory function in relation to implanttreatment. Therefore, the aim of the present study was to evaluate the improvement ofmasticatory function two weeks after implant restoration. Methods: Masticatory ability was evaluated with the subjective food intake ability (FIA)and objective mixing ability index (MAI) methods. Fifty-four subjects with first and secondmissing molars completed the study. The subjects were asked to complete a self-reportedquestionnaire about 30 different food items, and to chew wax samples 10 times both beforeand two weeks after implant restoration. A total of 108 waxes were analyzed with animage analysis program. Results: Dental implant restoration for lost molar teeth on one side increased the FIA scoreby 9.0% (P<0.0001). The MAI score also increased, by 14.3% after implant restoration(P<0.0001). Comparison between the good and poor mastication groups, which were subdividedbased on the median MAI score before implant restoration, showed that the FIAscore of the poor group was enhanced 1.1-fold while its MAI score was enhanced 2.0-foldtwo weeks after an implant surgery. Conclusions: Using the FIA and MAI assessment methods, this study showed that masticatoryfunction was improved two weeks after implant restoration. In particular, the enhancementof masticatory function by implant restoration was greater in patients with relativelypoor initial mastication than in those with good initial mastication.
Abstract
Purpose: Dental implants present several advantages over other tooth replacement options. However, there has been little research on masticatory function in relation to implanttreatment. Therefore, the aim of the present study was to evaluate the improvement ofmasticatory function two weeks after implant restoration. Methods: Masticatory ability was evaluated with the subjective food intake ability (FIA)and objective mixing ability index (MAI) methods. Fifty-four subjects with first and secondmissing molars completed the study. The subjects were asked to complete a self-reportedquestionnaire about 30 different food items, and to chew wax samples 10 times both beforeand two weeks after implant restoration. A total of 108 waxes were analyzed with animage analysis program. Results: Dental implant restoration for lost molar teeth on one side increased the FIA scoreby 9.0% (P<0.0001). The MAI score also increased, by 14.3% after implant restoration(P<0.0001). Comparison between the good and poor mastication groups, which were subdividedbased on the median MAI score before implant restoration, showed that the FIAscore of the poor group was enhanced 1.1-fold while its MAI score was enhanced 2.0-foldtwo weeks after an implant surgery. Conclusions: Using the FIA and MAI assessment methods, this study showed that masticatoryfunction was improved two weeks after implant restoration. In particular, the enhancementof masticatory function by implant restoration was greater in patients with relativelypoor initial mastication than in those with good initial mastication.
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