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多年来,牙菌斑的定义是混乱的,直到1963年Dewes等的定义才为众所公认。他们把牙菌班描写为是附着在牙面上的软而粘的物质,用漱口水不易漱去。但是这个定义显然是过份简单化了,例如它未能说明牙菌斑因形成的部位、堆积的时间、食物的成份以及未被明确的其他因素,而发生的量以及微生物和生物化学组成的变化的情况。牙菌斑的形成牙菌斑发生的最初是在牙面形成小膜(Meckel 1967),在用牙膏刷牙后2小时,即可看到小膜,有充分证据说明这种物质来源于唾液。将拔出2小时后的牙制成磨片,用电子显微镜检查,显示有0.1—0.7毫微米
Over the years, the definition of plaque was confusing and it was not until 1963 that the definition of Dewes et al. They described the toothpaste as a soft, sticky substance attached to a tooth surface that would not easily rinse with a mouthwash. However, this definition is apparently oversimplified. For example, it fails to indicate the amount of plaque plaque formation due to the site of formation, the time of accumulation, the composition of the food, and other factors not yet known, as well as the microbial and biochemical composition Change situation. Formation of plaque Plaque begins with the formation of a small membrane (Meckel 1967) on the tooth surface. A small film is visible 2 hours after tooth brushing. There is good evidence that this material is saliva. Tooth extracted 2 hours after the teeth made of grinding, electron microscopy showed that 0.1-0.7 nm