PubMed Health⌕ Search

Biomedical subjects

H R Englander

Publications and source records attributed to H R Englander.

At least 19 recordsLinked to original sources
PubMed1979

Enhanced anticaries action from drinking water containing 5 ppm fluoride.

Dental examinations were conducted on 1,878 adolescent schoolchildren native to seven US cities in five states, where the water was fluoride-deficient, fluoridated, or contained approximately 5 ppm of naturally occurring fluoride. Dental caries experience was considerably lower in all the communities with fluoridated water than in Boston, which had water deficient in fluoride, and ranged from 38% to 83% fewer mean DMF for the children in the regions with fluoridated water than for the children in Boston. Moreover, dental caries experience was significantly lower in Midland, Tex (5 to 7 ppm fluoride) than in each of the four cities with fluoridated water, and approximately 50% of the children in Midland had no caries. This report provides strong evidence that a much greater protection against human dental caries can result from a higher concentration of fluoride than is customarily recommended as best for prevention of caries. Fluoridating community waters to concentrations higher than 1 to 2 ppm fluoride, however, is not suggested because of the high risk of producing unesthetic enamel fluorosis.

Adolescent↗
PubMed1979

Supervised deplaquing and improved gingival health in a school program.

Following an intensive period of patient education, 205 school children, aged 12 to 16 years, under daily supervision removed stained deposits of plaque from their teeth with dental floss and toothbrushes. After 3 1/2 months there were clinically and statistically significantly reductions in mean plaque and gingivitis scores. In contrast, plaque and gingivitis scores increased significantly for 239 children not deplaquing daily in a nearby control school.

Adolescent↗
PubMed1978

Short intensive topical APF applications and dental caries in a fluoridated area.

Three groups of approximately 200 children, consuming fluoridated water since birth, were given either 5, 10 or 25 consecutive topical applications with an APF gel (1.2% F, pH 3.2) in mouthpieces. After 1 year, mean DMFS increments were 7.2%, 30.4% and 35.3% less respectively for the three groups as compared with untreated control groups. Although enamel fluoride levels remained high after the 1st year, differences in dental caries increments between treated and control groups were too small to show group differences. The results suggest that in a fluoridated area, when caries activity is low, it would be difficult to show a long-term anticaries effect by increasing the fluoride concentration in sound enamel by a short series of self-applied topical fluoride applications.

Child↗
PubMed1977

Enamel fluoride uptake and retention from intensive APF gel applications in vivo.

Children, in the fifth school grade (mean age 11 years) in a fluoridated water area, self-applied acidulated phosphate-F gel (1.2% F) in custom-fitted mouthpieces on 5, 10, or 25 consecutive school days. Enamel F uptake, penetration, and retention were determined from analysis of 1,257 deciduous teeth exfoliated during and after the applications. F penetrated to 200 micrometer in enamel exposed to 25 applications of the gel and increased approximately 2,600 ppm at a 5 micrometer depth. Concentrations of F declined for approximately eight months after which levels stabilized, resulting in a 1,600 ppm increase of firmly bound F.

Acidulated Phosphate Fluoride↗