Park K K, Schemehorn B R, Stookey G K
Indiana University School of Dentistry, Indianapolis.
Pediatr Dent. 1993 May-Jun;15(3):197-202.
Recent data indicate that salivary stimulation by chewing sugarless gum after snacks or meals can reduce the acidogenic potential of foods significantly. The purpose of this study was to determine the optimal initiation time and duration of post-snack salivary stimulation to obtain the maximum benefits of chewing sorbitol gum on reducing the acidogenic potential of starch-containing snacks. An indwelling plaque pH telemetry system was used on five adults in a randomized block design with four starch-containing snacks--pretzels, potato chips, granola bars, and corn chips. Results indicated that salivary stimulation caused by chewing sorbitol gum initiated after 5 min rather than waiting 15 min significantly reduced the acidogenic challenge induced by the snack foods. This study indicates that when the recommendation to chew sugarless gum following food ingestion is used as an adjunct in caries prevention, it should start within 5 min after food ingestion--the sooner the gum chewing is initiated the better--and should continue for at least 15 min to obtain the maximum benefits.
近期数据表明，在吃零食或饭后咀嚼无糖口香糖刺激唾液分泌，可显著降低食物的产酸能力。本研究的目的是确定零食后唾液刺激的最佳起始时间和持续时长，以获取咀嚼山梨醇口香糖在降低含淀粉零食产酸能力方面的最大益处。采用留置菌斑pH遥测系统，对5名成年人进行随机区组设计，食用4种含淀粉零食——椒盐脆饼、薯片、格兰诺拉燕麦棒和玉米片。结果表明，咀嚼山梨醇口香糖引发的唾液刺激在5分钟后开始，而非等待15分钟，可显著降低零食引起的产酸挑战。本研究表明，当将进食后咀嚼无糖口香糖的建议用作预防龋齿的辅助措施时，应在进食后5分钟内开始——越早咀嚼口香糖越好——并且应持续至少15分钟以获得最大益处。
