Park K K, Schemehorn B R, Bolton J W, Stookey G K
Indiana University School of Dentistry.
Am J Dent. 1990 Oct;3(5):185-91.
The purpose of this study was to determine the effect of chewing a sorbitol gum (Trident) for 10 minutes on interproximal plaque pH changes following ingestion of selected sucrose- or starch-containing foods. The snacks containing predominantly sucrose (and/or simple sugars) were chocolate bar, cream-filled cupcakes, cream-filled sandwich cookie, cherry pie and raisins. The snacks containing predominantly starch were oat cereal, granola bars, pretzels, potato chips and corn chips. Plaque pH responses were monitored using an indwelling wire-telemetry system in five adult panelists. The test design involved two sets of 5 x 5 Latin square randomization in which each set consisted of two series of tests. In the first series of tests, the fasted, resting plaque pH was recorded for 5 minutes, panelists ingested the designated snacks for 2 minutes, and the pH response was monitored for the remainder of a 2-hour period. In the second series of tests, the same procedure was followed through the snack ingestion. After the pH response to the snack was monitored for 15 minutes, the panelists were asked to chew one stick of sorbitol gum for 10 minutes and the pH response was then monitored for the balance of the 2-hour period. Results indicated that both the sugar- and starch-containing snacks tested in this study caused significant decreases in interproximal plaque pH. Chewing a sorbitol gum after ingestion of the snacks significantly reduced the demineralizing potential of the plaque. The chewing of sorbitol gum following the ingestion of snacks can be recommended as an adjunct to other caries-preventive oral hygiene measures.
本研究的目的是确定咀嚼10分钟山梨醇口香糖（Trident）对摄入特定含蔗糖或淀粉食物后邻面菌斑pH值变化的影响。主要含蔗糖（和/或单糖）的零食有巧克力棒、奶油夹心纸杯蛋糕、奶油夹心三明治饼干、樱桃派和葡萄干。主要含淀粉的零食有燕麦片、格兰诺拉燕麦棒、椒盐脆饼、薯片和玉米片。使用植入式有线遥测系统监测了五名成年受试者的菌斑pH值反应。测试设计包括两组5×5拉丁方随机化，每组由两个系列的测试组成。在第一个系列测试中，记录空腹、静止状态下的菌斑pH值5分钟，受试者摄入指定零食2分钟，然后在2小时剩余时间内监测pH值反应。在第二个系列测试中，零食摄入过程遵循相同程序。在监测零食的pH值反应15分钟后，要求受试者咀嚼一根山梨醇口香糖10分钟，然后在2小时剩余时间内监测pH值反应。结果表明，本研究中测试的含糖类和含淀粉类零食均导致邻面菌斑pH值显著下降。摄入零食后咀嚼山梨醇口香糖可显著降低菌斑的脱矿潜力。摄入零食后咀嚼山梨醇口香糖可作为其他预防龋齿的口腔卫生措施的辅助手段推荐使用。
