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  • Title: [Effect of chewing sugar-free gum after sucrose challenge on dental plaque pH in situ].
    Author: Dong YM, Pan YC, Wang DM, Cao CF.
    Journal: Zhonghua Kou Qiang Yi Xue Za Zhi; 2003 Nov; 38(6):423-5. PubMed ID: 14703473.
    Abstract:
    OBJECTIVE: To evaluate the effect of chewing sugar-free gum after sucrose challenge on dental plaque pH in situ. METHODS: 16 healthy volunteers aged 23 - 32 years were screened as subjects. The pH of 48-hour dental plaque was measured using a Beetrode pH microelectrode when subjects chewed Extra sugar-free gum after sucrose challenge. RESULTS: Dental plaque pH maintained at resting plaque pH when immediately chewed sugar-free gum after sucrose challenge. Chewing sugar-free gum at 5 min after sucrose challenge, dental plaque pH was raised from 5.59 (measured at 5 min after sucrose challenge) to 6.98 (measured at 10 min after sucrose challenge). CONCLUSIONS: Chewing sugar-free gum after sucrose challenge can neutralize organic acid produced by bacteria in dental plaque and rapidly rise plaque pH.
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