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Oral fluoride retention following various topical application techniques in children.

Eight child volunteers received routine APF gel topical fluoride applications using four different application techniques. Each child received a total of four topical fluoride applications, and all applications were separated by at least one wk. The amounts of fluoride applied, recovered from the mouth, and retained in the mouth were calculated for each treatment. Tray systems with some form of absorptive liner resulted in significantly less oral-retained fluoride after the four-minute application procedure (p less than .01). The value of patient expectoration following topical fluoride treatment was also evaluated, and was a significant adjunct in reducing the net oral-retained fluoride dose in each instance (p less than .01).

Acidulated Phosphate Fluoride↗

Expansion of the proper use of systemic fluoride supplements.

Systemic fluoride supplements, such as tablets and drops, are recommended as alternatives to community and school water fluoridation. Assay of patients' drinking water should be used to determine the water fluoride content. Supplements should be used only when the water fluoride level is found to be deficient. In this way, the appropriate dosage supplement can be determined and prescribed, and unnecessary risks of fluorosis can be avoided. Research has shown that many practitioners prescribe fluoride supplements, although relatively few practitioners assay patients' water supplies. Increased use of water assay and fluoride supplements is warranted if the dental profession is to continue its emphasis on prevention. This increase should be in conjunction with water fluoridation, topical fluorides, and pit and fissure sealants.

Administration, Oral↗

Effectiveness of dental health educational programs in schools.

The largest and most important group that may be reached by health education is found in the school system. Children not only are fast learners and anxious to acquire new skills but also are at risk for the development of dental health problems. Therefore, regardless of the equivocal nature of the evidence regarding the effectiveness of school dental health educational programs, it is important that they continue to be developed. The programs created should have objectives, pretesting, participatory and cognitive experiences, periodic review of dental health program by an advisory committee, a liaison between school personnel and health professionals, and realistic models to assess the effects of the program on health. Because dental disease preventive programs and regimens such as water fluoridation, topical fluorides, dental sealants, and oral hygiene regimens are available that have the potential to eliminate dental disease, effort should be made to increase the awareness of the children who can benefit from them.

Behavior Therapy↗

Use of fluorides by Finnish adolescents.

According to the recommendations of the National Board of Health in Finland fluoride tablets should be used daily from the age of 6 months to 15 yr in fluoride deficient areas. Topical fluorides are recommended in addition to systemic fluorides. The aim of this study was to analyze the use of fluoride tablets and topical fluorides by Finnish adolescents. Teenagers (n = 4705) representing Finnish youth aged 12, 14, 16 and 18 yr were sent mail questionnaires in February 1981. The response rate was 88%. The proportion of daily fluoride tablet users was 12% among 12-yr-old girls, 3% among 14-yr-old girls and among boys 10% and 4%, respectively. Fluoride rinses at home were used daily by only 1%. During the most recent school term, 34% had several times, and 8% once, participated in classroom fluoride rinsing. In the same period 14% had used fluoride gel several times, and 10% once. Thus despite dental health education, fluoride tablets and rinses are used very rarely at home by Finnish teenagers. The recommendations of the National Board of Health are far removed from the behavior of adolescents. Use of fluoride tablets and topical fluorides do not seem to be a practical alternative to drinking-water fluoridation, because of the low level of compliance.

Adolescent↗

Assessment of loosely-bound and firmly-bound fluoride uptake by tooth enamel from topically applied fluoride treatments.

The amounts of loosely-bound fluoride (F) deposited on human enamel by two topical F treatments were measured with use of a constant-composition F washing method. Enamel biopsies conducted before treatment and after the washing were used for determination of the firmly-bound F uptake. The results showed that (1) the washing system did not remove F from untreated enamel surface, (2) a four-minute application of an acidulated phosphate fluoride (APF) gel deposited 27.2 (2.4) (mean, S.E.) micrograms of loosely-bound F per cm2 of enamel surface and 186 (111) ppm of firmly-bound F in the outer 10 microns of enamel, and (3) a four-minute application of a pH-2.1 dicalcium phosphate dihydrate (DCPD)-forming solution followed by APF produced 44.9 (3.1) micrograms/cm2 of loosely-bound F and 1280 (354) ppm of firmly-bound F in the outer 10 microns of enamel. The results showed that the DCPD pre-treatment effectively enhanced the enamel reactivity with F, so that the DCPD-APF treated enamel acquired greater amounts of both loosely-bound F and firmly-bound F than did samples treated with APF alone.

Acidulated Phosphate Fluoride↗