[Prevalence of mineralization disorders in dental tissues in children in fluoridated regions of Kladno].

The authors subjected to dental examinations a group of children aged 12-13 years from the Kladno area and surrounding rural communities. The children from Kladno drank from birth fluoridated water from the water mains, while the rural children, where well water had a minimum fluoride content, had to rely on sodium fluoride tablets. In all children the prevalence of non-carious changes of dental tissues was assessed, the cariosity (DMF), oral hygiene (OHI) and the state of the gingiva (PI).

[Anamnestic incidence of hepatitis B in the population of Prague stomatologists].

The author assessed by means of questionnaires the incidence of hepatitis B and the use of protective devices in a group of 612 Prague stomatologists. Fifty-four (3.8%) reported hepatitis B.