Activity of Carbonic Anhydrase VI is Higher in Dental Biofilm of Children with Caries.

This study investigated pH, activity and concentration of carbonic anhydrase VI (CA VI) in dental biofilm of caries and caries-free children of 7-9 years old. Seventy-four children were selected and divided into two groups. The caries diagnosis was performed according to the WHO criteria, including the early caries lesion.

The effect of chronic treatment with fluoride on salivary activity, tooth, and bone in spontaneously hypertensive rats (SHR).

The present study evaluated the effect of chronic treatment with sodium fluoride on salivary activity, tooth, and bone in spontaneously hypertensive rats (SHR). The treatment was made with a 20-ppm NaF solution added to the drinking water for 30 days. Systolic blood pressure values were obtained by plethysmography; fluoride concentration was determined by an ion-selective electrode; calcium concentration and amylase activity were determined by commercial kits; and enamel microhardness was verified by longitudinal section.

Spontaneously hypertensive rat as experimental model of salivary hypofunction.

Objective: To analyse the salivary activity in spontaneously hypertensive rats (SHRs) evaluating biochemical parameters of saliva in 4-week-old and 12-week-old animals.

Design: Systolic blood pressure (SBP) was recorded by tail plethysmography. The salivary flow rate was stimulated by pilocarpine (SFR).