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标题:Variation of salivary calcium, phosphate and buffering capacity in adolescents
时间:2019-12-04 00:08:36
DOI:10.1016/S0003-9969(98)00085-5
作者:D.A Kavanagh;G Svehla
关键词:buffering capacity;calcium;children;phosphate;unstimulated saliva;variation
出版源: 《Archives of Oral Biology》 ,1998 ,43 (12) :1023
摘要:Calcium, phosphate and buffering capacity were measured in children’s ( n =43) unstimulated saliva between September 1990 and June 1991 inclusive. Saliva samples were collected in the afternoon, once a month, on 10 consecutive occasions. Buffering capacity was assessed immediately after sample collection using the Dentobuff®; strip method. The remainder of the saliva sample was then stored at −18°C and, after thawing, total calcium and inorganic phosphate were measured. The intra-individual variation of buffering capacity over time was statistically significant (Friedman two-way ANOVA, p <0.001). The intra-individual variability of salivary calcium was also statistically significant (repeated-measures ANOVA, p <0.001). However, no evidence of a statistically significant variation in phosphate was observed. It is concluded that a combination of flow-rate fluctuation over time and the methods used to assess salivary constituents might have contributed to this variability.
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