Effect of preventive measures in 50-60-year-olds with a high risk of XXXX .

@entity1 @entity1547
Salivary and microbial conditions were examined in 124 50-60-yr-old @entity1 attending a dental clinic of the Public Dental Health Service. They were then randomly divided into a control and a test group. @entity1 with low salivary secretion rate and buffer capacity and high numbers of mutans streptococci and lactobacilli in the test group received special caries preventive measures during 1 yr. In the control group all @entity1 were given prevention according to routine procedures. The incidence of @entity1547 between the groups was compared. The risk @entity1 in the control group developed 1.67 new carious lesions as compared to 0.19 in the test group. The difference was statistically significant (P less than 0.05). Also the numbers of mutans streptococci and lactobacilli were significantly lower in the risk @entity1 in the test group after 1 yr compared with baseline values. After the experimental year all @entity1 were treated according to routine procedures. Five years after the start of the study a new examination showed increased caries activity in the risk @entity1 in the test group and the gain which had been made during the experimental year was almost lost.
