Lagerlöf F, Oliveby A
Department of Cariology, School of Dentistry, Karolinska Institutet, Huddinge, Sweden.
Adv Dent Res. 1994 Jul;8(2):229-38. doi: 10.1177/08959374940080021601.
Saliva influences caries attack mainly by its rate of flow and by its content of fluoride. The salivary flow rate influences to a high degree the rate of oral and salivary clearance of bacterial substrates included in foods and snacks. This influence is site-dependent. The basal salivary fluoride concentration is low, about 1 mumol/L, independent of salivary flow rate, and not influenced by diurnal variation. After an exposure of the oral cavity to fluoride, the increased fluoride level is decreased by a process influenced mainly by the salivary flow rate and the volumes of saliva in the mouth before and after swallowing. Other less important caries-protective factors in saliva include its buffer ability, its content of calcium, inorganic phosphate, pH-increasing substances, and anti-microbial agents.
唾液主要通过其流速和氟含量影响龋齿的发生。唾液流速在很大程度上影响食物和零食中所含细菌底物的口腔及唾液清除率。这种影响因部位而异。基础唾液氟浓度较低，约为1微摩尔/升，与唾液流速无关，且不受昼夜变化影响。口腔接触氟后，氟水平的升高会通过一个主要受唾液流速以及吞咽前后口腔内唾液量影响的过程而降低。唾液中其他不太重要的防龋因素包括其缓冲能力、钙、无机磷酸盐、pH值升高物质和抗菌剂的含量。
