critical pH


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crit·i·cal pH

the pH range, about 5.5, at which saliva ceases to be saturated with respect to calcium and phosphate, and below which tooth mineral and other hard tissue lose calcium.

crit·i·cal pH

(kriti-kăl)
The pH range, about 5.5, at which saliva ceases to be saturated with respect to calcium and phosphate, and below which tooth mineral and other hard tissues lose calcium.
References in periodicals archive ?
At 10% yield loss, the critical pH at Perkins was calculated as 5.1.
The fluids within the lesion and in the plaque would again become approximately saturated with respect to the tooth mineral once the cariogenic condition in the plaque has diminished, i.e., the plaque pH has risen above the critical pH of approximately 5.5 (14).
Thirty-one medicines could be ranked as having the potential to provoke dental erosion as their pH values were low ([less than or equal to] 5.5, the critical pH for demineralization of tooth enamel in a low-calcium environment).