Influence of the discontinuation of a school-based, supervised fluoride mouthrinsing programme on the prevalence of dental caries. 1997

N Yamaguchi, and T Saito, and T Oho, and Y Sumi, and Y Yamashita, and T Koga
Department of Preventive Dentistry, Kyushu University Faculty of Dentistry, Fukuoka, Japan.

OBJECTIVE Since 1984 a weekly supervised fluoride mouthrinsing programme has been implemented for schoolchildren in Hisayama, Japan. Consequently, four years after the start of the programme the DMFT index for 12.5-year-old schoolchildren in Hisayama decreased to a value of less than 3.0. However, since 1992 it has increased. The purpose of this study was to investigate the causes of this increasing prevalence of dental caries since 1992. METHODS One hundred and one schoolchildren aged 12 years in 1994 were selected. This age group showed the highest increase in the prevalence of dental caries in that year. METHODS Children who had discontinued the use of fluoride mouthrinse for one year or more were identified by means of a confidential questionnaire. Oral examination was carried out, by three examiners, under a suitable artificial light using a mirror and an explorer. RESULTS The DMFT and DMFS indices of the continuous mouthrinsing (CM) group were significantly lower than those of the discontinuous mouthrinsing (DM) group (P < 0.001). Significant differences between the CM and DM groups were also observed in the DMFT rates for premolars (P < 0.05) and for the first molar (P < 0.001). CONCLUSIONS The continuation of fluoride mouthrinsing for children of school age was important in achieving the advantages of the programme in Hisayama.

UI MeSH Term Description Entries
D007564 Japan A country in eastern Asia, island chain between the North Pacific Ocean and the Sea of Japan, east of the Korean Peninsula. The capital is Tokyo. Bonin Islands
D008297 Male Males
D008963 Molar The most posterior teeth on either side of the jaw, totaling eight in the deciduous dentition (2 on each side, upper and lower), and usually 12 in the permanent dentition (three on each side, upper and lower). They are grinding teeth, having large crowns and broad chewing surfaces. (Jablonski, Dictionary of Dentistry, 1992, p821) Molars
D009067 Mouthwashes Solutions for rinsing the mouth, possessing cleansing, germicidal, or palliative properties. (From Boucher's Clinical Dental Terminology, 4th ed) Mouth Bath,Mouth Rinse,Mouth Wash,Bath, Mouth,Baths, Mouth,Mouth Baths,Mouth Rinses,Rinse, Mouth,Rinses, Mouth,Wash, Mouth
D010352 Patient Dropouts Discontinuance of care received by patient(s) due to reasons other than full recovery from the disease. Dropout, Patient,Dropouts, Patient,Patient Dropout
D011795 Surveys and Questionnaires Collections of data obtained from voluntary subjects. The information usually takes the form of answers to questions, or suggestions. Community Survey,Nonrespondent,Questionnaire,Questionnaires,Respondent,Survey,Survey Method,Survey Methods,Surveys,Baseline Survey,Community Surveys,Methodology, Survey,Nonrespondents,Questionnaire Design,Randomized Response Technique,Repeated Rounds of Survey,Respondents,Survey Methodology,Baseline Surveys,Design, Questionnaire,Designs, Questionnaire,Methods, Survey,Questionnaire Designs,Questionnaires and Surveys,Randomized Response Techniques,Response Technique, Randomized,Response Techniques, Randomized,Survey, Baseline,Survey, Community,Surveys, Baseline,Surveys, Community,Techniques, Randomized Response
D012044 Regression Analysis Procedures for finding the mathematical function which best describes the relationship between a dependent variable and one or more independent variables. In linear regression (see LINEAR MODELS) the relationship is constrained to be a straight line and LEAST-SQUARES ANALYSIS is used to determine the best fit. In logistic regression (see LOGISTIC MODELS) the dependent variable is qualitative rather than continuously variable and LIKELIHOOD FUNCTIONS are used to find the best relationship. In multiple regression, the dependent variable is considered to depend on more than a single independent variable. Regression Diagnostics,Statistical Regression,Analysis, Regression,Analyses, Regression,Diagnostics, Regression,Regression Analyses,Regression, Statistical,Regressions, Statistical,Statistical Regressions
D002327 Cariostatic Agents Substances that inhibit or arrest DENTAL CARIES formation. (Boucher's Clinical Dental Terminology, 4th ed) Cariostatic Effect,Cariostatic Effects,Agent, Cariostatic,Agents, Cariostatic,Cariostatic Agent,Effect, Cariostatic,Effects, Cariostatic
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D003731 Dental Caries Localized destruction of the tooth surface initiated by decalcification of the enamel followed by enzymatic lysis of organic structures and leading to cavity formation. If left unchecked, the cavity may penetrate the enamel and dentin and reach the pulp. Caries, Dental,Carious Lesions,Dental Cavities,Dental Cavity,Dental Decay,Dental White Spots,Carious Dentin,Decay, Dental,Dental White Spot,White Spot, Dental,White Spots, Dental,Carious Dentins,Carious Lesion,Cavities, Dental,Cavity, Dental,Dentin, Carious,Dentins, Carious,Lesion, Carious,Lesions, Carious,Spot, Dental White,Spots, Dental White

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