采用同群体前后对照法 ,对 17名成人在使用含氟牙刷刷牙 ,自来水漱口后几小时内的唾液氟离子浓度进行检测 ,结果发现使用含氟牙刷后唾液中氟离子浓度有一个低水平的上升 ,并在 3h内保持轻微的高水平 ,提示使用含氟牙刷刷牙可使牙齿表面增加氟离子量 ,有利牙齿防龋性能的增加 Using the same group before and after the control method, 17 adults fluoride toothbrush in the use of fluoride toothbrush, tap water within a few hours after the fluoride ion concentration was detected in the saliva fluoride fluoride toothbrush after using a low level of fluoride ion concentration Rise, and maintain a slight high level within 3h, suggesting that the use of fluoride toothbrush brushing can increase the amount of fluoride ions on the tooth surface, dental caries benefit dental performance increase