临床观察指出使用单一化学制剂,对预防龋病或龈炎的作用大小各有不同。例如能降低龋病的氟离子,对龈炎的作用就不明显。强有力的菌斑抑制剂—洗必太抑制龈炎,但在长期临床试验中降低龋病的作用,尚无结论性证据。本实验在探索同时具有抑制龋病和龈炎作用的制剂。选择有高DMFS的164名11—15岁的学龄儿童为实验对象,按Mφller和Poulsen Clinical observations indicate that the use of a single chemical may have different effects on the prevention of caries or gingivitis. For example, can reduce dental caries fluoride, the role of gingivitis is not obvious. A powerful plaque inhibitor, chlorhexidine, inhibits gingivitis, but there is no conclusive evidence of its role in reducing caries in long-term clinical trials. This experiment explores both formulations that inhibit the effects of caries and gingivitis. A total of 164 school-aged children aged 11-15 years old with high DMFS were selected as experimental subjects. According to Mφller and Poulsen