The project was carried out to examine the fluoride concentration of the natural water from northern provinces. The result of research will be applied on the Oro-dental Health care of children and community. 179 samples of water from 10 northern provinces were tested. The result of research showed that in almost of sources of water (97.8%) there is not enough fluoride. So the use of fluoride to prevent dental carries for children and community is necessary and urgent.
Periodontal Diseases ; Fluorides

The research was carried out invitro to assess anticaries efficacy of toothpastes. 9 groups of enamel samples were treated with 9 kinds of toothpaste including 8 fluoride-toothpastes (marketed in Vietnam) and 1 placebo (no fluoride). The result of this study showed that fluoride-toothpaste had ability to increase fluoride component of the enamel so it has anticaries efficacy. But the different dentifrice’s anticaries efficacy was also different.
Fluorides ; Dental Enamel

The study was carried out in vitro to determine the changes of fluoride concentration in tooth enamels that were treated with fluoride dentifrices. The analysis of enamels showed that the fluoride from dentifricaes has been delivered into tooth enamels to contribute to the process of remineralisation at the areas of demineralised enamels. So the fluoride dentifrices have efficacy in preventation of dental caries. The difference of fluoride concentration in enamel samples demonstrated that the anticaries efficacy of dentifrices was also different.
Fluorides ; Toothpaste ; In Vitro ; Dental Enamel

Fluoride has been used to prevent dental caries for children and community since 1945. In Vietnam, there are over 4 millions children who are using fluoride topically in schools across the nation. Conducting children to rinse their mouth by fluoride water has became one of the interventions of school dental program for over past 20 years. So it is necessary to determine the fluoride absorbability into tooth enamel in order to assess its anti-caries ability indirectly. This study was carried out to assess the ability of fluoride for caries prevention when using topically. Tooth enamels after treated in pH cycling with conditions as in the oral cavity were analyzed to determine the fluoride concentration. The results showed that significant of fluoride was absorbed into tooth enamel. It was al so suggested that fluoride that are provided by the School Dental Program has ability in prevention from dental carries.
Fluoride absorbability into tooth enamel in-vitro

This study was carried out to determine the fluoride concentration in tea water, natural water as well as the optimum of fluoride concentration in drinking water. Tea water was found to contain high concentration of fluoride. The fluoride concentrations in tea water range from 1.35 to 4.00 ppmF. These levels are 2-5 times higher than the optimum of fluoride concentration. Population in the North has habit of drinking tea water, so the source of fluoride in tea should be considered when determining total fluoride intake.
Dental Caries ; Water ; Tea

An in-vitro study was conducted on tooth enamel collected in removed samples and processed with pH 5 demineralization solution and with the solution of Crest fluoride toothpaste. Fluoride uptake into demineralized enamel was measured. Result confirms the ability of Crest Toothpaste to prevent dental caries
Dental Caries ; Toothpaste

The program of school-based oral care has been organised at all 25 primary and secondary schools of Gia Loc district since 1989/1990 to prevent oral diseases including gingivitis. After 8 years, the ratio of children who affected by gingivitis reduced clearly. The rate of school pupils who have acceptable gingival health increased from 8.42% to 94.21%. This result confirms that school-based oral preventive activities are neccesary and suitable. Particulary, in 1997/1998 we reached WHO and EEC countries’s goal as well as Vietnam’s goal for the year of 2010
Dental Care ; child ; Gingivitis ; prevention & control

The program of SCDC has been organised at all 25 primary and secondary schools of Gia Loc district since 1989-1990 to prevent dental caries for children aged 6 -15. The program’s activities include dental health education, conducting children to rinse their mouth by fluoride water 0.2% weekly and clinical preventation. After 8 years, the situatation of dental caries reduced. At age 12, the ratio of dental caries reduced 56.05% and DMFT reduced 79.41%. This result confirms that the contents of SCDC are suitble. Especially the situation of dental health shows that in 1997-1998 we reached WHO global goals and Vietnam goals for the year 2010.
Dental Care ; child ; prevention & control ; Dental Caries

The project was carried out to assess the situation of oral hygiene of the school children who have not been conducted oral hygiene as well as to access the effectiveness of dental education in the improvement of oral hygiene. The results of this study showed that: 1. The situation of oral hygiene of the school children is very bad. This is alarming situation of preventive hygiene. So we have to strengthen oral hygiene education for children community across the country. 2. The content of oral hygiene education of the school dental program for children (6-15 years old) has significant effectiveness on the improvement of oral hygiene. 3. The oral hygiene situation tightly related to orodental diseases such as dental caries, periodontal disease. So we have to conduct oral hygiene education for community in order to prevent dental caries and periodontal disease
child ; Oral Hygiene

The program of school-based oral care has been organised at all 25 primary and secondary schools of Gia Loc district since 1989/1990 to prevent oral diseases that include gingivitis. After 8 years, the ratio of children who affected by gingivitis reduced clearly. The rate of school pupils who have acceptable gingival health increased from 8.42% to 94.21%. This result confirms that school-based oral preventive activities are neccesary and suitable. Particularly, in 1997/1998 we reaches WHO and EEC countries’s goal as well as Vietnam’s goal for the year of 2010
Periodontal Diseases ; Dental Care