Effect of after-meal sucrose-free gum-chewing on clinical caries

Author(s): Szöke J, Bánóczy, and H.M. Proskin
Publication name: J Dent Res. 2001; 80(8):1725-29
Publication year: 2001

Abstract

Previous in situ and in vitro studies have demonstrated that the chewing of sucrose-free gum after eating reduces the development of dental caries. To investigate the extrapolation of these findings to the clinical setting, we conducted a two-year study on 547 schoolchildren in Budapest, Hungary. Subjects in the “Gum” group were instructed to chew one stick of a commercially available sorbitol-sweetened chewing gum for 20 minutes after meals, three times daily. The “Control” group was not provided with chewing gum. After two years, the “Gum” group exhibited a 38.7% reduction in incremental caries, excluding white spots, compared with the “Control” group. Including white spots, a corresponding 33.1% reduction was indicated. These results clearly suggest that even in a moderate caries population practicing normal oral hygiene, including the use of fluoride dentifrices, an after-meal gum-chewing regimen can significantly reduce the rate of caries development.

Summary

This two-year study in schoolchildren in Hungary confirmed that chewing sugar-free gum after meals reduces the rate of carries development. Specifically, chewing sugar-free gum sweetened with low calorie sweeteners for 20 minutes after meals, three times daily, resulted in a 38.7% reduction in incremental caries. In conclusion, together with practicing normal oral hygiene, an after-meal gum chewing can be beneficial to good dental health.

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