March 2008

Volume 25, Issue 1

Development of a shortened Japanese version of the Oral Health Impact Profile (OHIP) for young and middle-aged adults

Authors: M. Tsuneoka R. Yamamoto T. Mizoue R. Ide
doi: 10.1922/CDH_2136Ide06


In 1987, Costa Rica implemented a national salt fluoridation programme using sodium fluoride (225-275 mg Fˉ/kg). Objective: To evaluate the prevalence and severity of enamel fluorosis (EF) in Costa Rican schoolchildren as part of the biological monitoring of the salt fluoridation programme. Basic research design: In 1999, eight calibrated examiners (interexaminer Kappa=0.73) recorded EF in the maxillary anterior teeth and first bicuspids (FDI’s teeth 14 to 24) using Dean’s Index and artificial light without drying. The multistrata probability sample included 12 and 15-year-old schoolchildren (n=2,499), representing seven regions of the country. Data were analyzed in SAS and SUDAAN to account for sampling design. Setting: Costa Rican schoolchildren. The 12-year-old cohort was born when salt fluoridation started. Participants: 3,758 children in selected age groups. Main outcome measures: Dean’s index was calculated for cuspid to cuspid (teeth 13 to 23) and premolar to premolar (teeth 14 to 24). Results: Prevalence of EF (very mild or higher) at age 12 years was 17% for teeth 13 to 23 and 32% when teeth 14 and 24 were included. At age 15 years, the prevalence was 12% for teeth 13 to 23 and 25% when teeth 14 and 24 were included. Large regional differences were observed: from 10% to 76% among 12-year-old children and from 6% to 50% among 15-year-old children. Conclusions: In the aggregate, EF prevalence is within the range expected for a salt fluoridation programme, but regions with higher severity need further investigation on additional sources of fluoride including environmental sources. Prevalence figures were higher in the cohort born at time of fluoridation. Key words: Costa Rica, dental fluorosis, enamel fluorosis, oral epidemiology, prevalence and severity, salt fluoridation, survey methods.


Other articles in this issue

Article Pages Access
Editorial - Oral health promotion by the oral health products industry: unrecognised and unappreciated? 2-3 Download
Report of the EGOHID I Project 4-10 Download
Acknowledgment of referees 11-11 Download
Exposure to water fluoridation and caries increment 12-22 Download
A comparison of two methods for the evaluation of the daily urinary fluoride excretion in Romanian pre-school children 23-27 Download
A randomised control trial of oral health education provided by a health visitor to parents of pre-school children 28-32 Download
The influence of social indices on oral health and oral health behaviour in a group of Flemish socially deprived adolescents. 33-37 Download
Development of a shortened Japanese version of the Oral Health Impact Profile (OHIP) for young and middle-aged adults 38-43 Download
Parents’ views on factors influencing the dental health of Trinidadian pre-school children. 44-49 Download
Coronal caries experience in dentate Jordanian adults 50-54 Download
The prevalence of enamel opacities in permanent teeth of 11-12 year-old school children in Kuala Lumpur, Malaysia. 55-58 Download
Factors associated with restoration and extraction receipt among New Zealand children 59-64 Download


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