日本で市販されている口中錠の歯垢内酸産生性 : 電極内蔵法による歯垢pHの測定

概要

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This study was carried out to assess the acidogenicity of throat lozenges currently available in Japan.Plaque pH was measured for 30 min by telemetry with ISFET microelectrodes. Five different throat lozenges were examined. One of the five lozenges was labeled as"sugarless"and the intake of this lozenge did not decrease plaque pH below 5.7.On the other hand, the plaque pH fell to 4.7-5.4 after the consumption of the other four lozenges in solid form.The plaque pH was maintained high during sucking of the solid form of each lozenge, but it decreased steeply after consumption.The rate of salivary secretion was 2 to 3 times higher during sucking the solid forms of the lozenges than after consumption.The findings suggest that the plaque pH remained high during the consumption of lozenges because of the high salivary secretion rate.In conclusion, most throat lozenges currently available in Japan are acidogenic, and their fermentative sugars should be substituted by non- or lw-acidogenic sweeteners to reduce their cariogenic potential.thoat lozengeacidogenicityplaque pHISFET microelectrodesalivary rate
東北大学の論文