MyMedR

Fluorosis prevalence among schoolchildren in a fluoridated community in Malaysia

Tan BS, Razak IA, Foo LC

Community Dent Health, 2005 Mar;22(1):35-9.

PMID: 15819114

This study aims to assess the magnitude of the problem of fluorosis among 10-11 year old schoolchildren in a fluoridated area in Malaysia.

Matched MeSH terms: Fluorosis, Dental/epidemiology*

Enamel defects in 11-12 year-old subjects in a fluoridated area

Abdul Razak I, Nik Hussein NN

Dent J Malays, 1986 May;9(1):23-8.

PMID: 3270565

Enamel defects were studied in a group of 11-12 year-old children in a fluoridated area using the DDE index. The mouth prevalence of this condition was 72.5 per cent with a tooth prevalence of 40.4 per cent. Enamel opacities accounted for 96.5 per cent of the total condition of which the diffuse patchy type predominates. The defects on the affected posterior teeth occurred most commonly on both the buccal and lingual/palatal surfaces, with most defects being located in the incisal one-half, gingival one-half and occlusal simultaneously. In the affected incisors, the highest proportion of defects affected the buccal surface only, with the most frequent location being the incisal one-half and gingival one-half simultaneously. In 20.9 per cent of the affected subjects, there was a 100 per cent tooth involvement.

Matched MeSH terms: Fluorosis, Dental/epidemiology*

Endemic fluorosis among 14-year-old Yemeni adolescents: an exploratory survey

Kadir RA, Al-Maqtari RA

Int Dent J, 2010 Dec;60(6):407-10.

PMID: 21302739

To assess the extent of fluorosis in a representative sample of 14-year-old Yemeni adolescents.

Matched MeSH terms: Fluorosis, Dental/epidemiology*

The impact of stopping or reducing the level of fluoride in public water supplies on dental fluorosis: a systematic review

Mohd Nor NA, Chadwick BL, Farnell DJ, Chestnutt IG

Rev Environ Health, 2020 Nov 18;35(4):419-426.

PMID: 32598322 DOI: 10.1515/reveh-2019-0059

OBJECTIVE: The increased availability of fluoride and concern over the impact of fluorosis, have led to guidance suggesting a decrease or cease in the optimal concentration of fluoride in water fluoridation schemes. To date there have been no systematic reviews looking at both impact of fluoride reduction and total cessation. This review aimed to examine the impact of stopping or reducing the level of fluoride in public water supplies on dental fluorosis.

CONTENT: Multiple databases were searched (MEDLINE, EMBASE, the Cochrane Central Register of Controlled Trials and the Web of Science). Two reviewers independently screened sources, extracted data and assessed study quality. Results were synthesised qualitatively and quantitatively. The main outcome measure was the prevalence of dental fluorosis.

SUMMARY: Six studies of cross-sectional design were included. Two studies were scored as evidence level B (moderate) and the remaining four publications were evidence level C (poor). Meta-analysis indicated fluorosis prevalence was significantly decreased following either a reduction in the concentration of fluoride or cessation of adding fluoride to the water supply (OR:6.68; 95% CI:2.48 to 18.00).

OUTLOOK: The evidence suggests a significant decrease in the prevalence of fluorosis post cessation or reduction in the concentration of fluoride added to the water supply. However, this work demonstrates that when studies are subject to current expectations of methodological and experimental rigour, there is limited evidence with low methodological quality to determine the effect of stopping or reducing the concentration of fluoride in the water supply on dental fluorosis.

Matched MeSH terms: Fluorosis, Dental/epidemiology*

Caries Assessment Spectrum and Treatment: Would It direct Future Epidemiological Surveys?

Bhoopathi PH, Voruganti S, Suma NS, Samudrala T, Kamath BV, Jahagirdar A

J Contemp Dent Pract, 2018 May 01;19(5):546-553.

PMID: 29807965

AIM: To evaluate caries spectrum among 12- and 15-year-old Indian children using the Caries Assessment Spectrum and Treatment (CAST) index.

MATERIALS AND METHODS: An epidemiological survey of the schoolchildren was carried out in a district in India. A stratified cluster random sampling method was used to select the sample. The caries prevalence of the surveyed population was obtained by using this CAST tool. Chi-square test was used to verify the association between dental fluorosis, socioeconomic status, and age and caries experience. Mann-Whitney U-test was used to compare the caries experience between the two age groups.

RESULTS: A total of 2,610 children were examined. The majority of the schoolchildren (12 years: 74.2%, 15 years: 75.5%) were healthy concerning their caries experience and the prevalence of the other codes was minimal. The prevalence of dentin carious lesions and the percent of restorable teeth was greater among the 15-year-olds. The mean decayed, missing, and filled teeth (DMFT) of 12- and 15-year-old subjects was calculated to be 0.22 and 0.29 respectively.

CONCLUSION: The currently surveyed population showed a low caries prevalence and the use of the tool highlighted the caries spectrum in an impressive way.

CLINICAL SIGNIFICANCE: A well-designed tool to assess the carious spectrum of an individual or a community, thus enabling the responsible stakeholders to plan an appropriate care that is necessary.

Matched MeSH terms: Fluorosis, Dental/epidemiology

The impact of a reduction in fluoride concentration in the Malaysian water supply on the prevalence of fluorosis and dental caries

Mohd Nor NA, Chadwick BL, Farnell DJJ, Chestnutt IG

Community Dent Oral Epidemiol, 2018 10;46(5):492-499.

PMID: 30019792 DOI: 10.1111/cdoe.12407

OBJECTIVE: To assess the prevalence and severity of dental fluorosis and caries among Malaysian children following the reduction in fluoride concentration from 0.7 to 0.5 parts per million (ppm) in the public water supply.

METHODS: This study involved lifelong residents aged 9- and 12-year-olds in fluoridated and nonfluoridated areas in Malaysia (n = 1155). In the fluoridated area, children aged 12 years and 9 years were exposed to 0.7 and 0.5 ppm, respectively, at the times when maxillary central incisors developed. Standardized photographs of maxillary central incisors were blind scored for fluorosis using Dean's criteria. Dental caries was examined using ICDAS-II criteria.

RESULTS: The prevalence of fluorosis (Dean's score ≥ 2) among children in the fluoridated area (35.7%, 95% CI: 31.9%-39.6%) was significantly higher (P

Matched MeSH terms: Fluorosis, Dental/epidemiology*

Fluoride exposure from ingested toothpaste in 4-5-year-old Malaysian children

Siew Tan B, Razak IA

Community Dent Oral Epidemiol, 2005 Oct;33(5):317-25.

PMID: 16128790

The aim of this study was to assess (by direct determination) the fluoride (F) exposure from ingested toothpaste among 4-5-year-old Malaysian children.

Matched MeSH terms: Fluorosis, Dental/epidemiology

Esthetic perception and psychosocial impact of developmental enamel defects among Malaysian adolescents

Sujak SL, Abdul Kadir R, Dom TN

J Oral Sci, 2004 Dec;46(4):221-6.

PMID: 15901066

The aim of this study was to investigate the prevalence and psychosocial impact of enamel defects among 16-year-old school children on the island of Penang. The data were collected through a self-administered questionnaire survey and an oral examination, using the Modified Developmental Defects of Enamel Index (FDI, 1992). In all, 1024 subjects were selected using a multistage random sampling technique. About two-thirds of the sample (67.1%) had at least one tooth affected by enamel defects. Enamel opacities accounted for 85.6% of the total condition. Diffuse-type opacity predominated (63.5%). Among subjects who expressed dissatisfaction, 18.8% reported covering their mouths when smiling, 8.7% avoided going out with friends and 39.1% had consulted their dentists. About 17% of the subjects reported that their parents had complained about the color of their front teeth but only 5.7% had experienced being teased by their friends about the problem. Two-thirds of the subjects were affected by enamel defects involving at least one tooth; however, the esthetic perception and psychosocial impact of those affected were minor.

Matched MeSH terms: Fluorosis, Dental/epidemiology

The prevalence of caries and enamel defects in 229 Malaysian children 16 years after water fluoridation (a pilot study)

Majid ZA, Hussein NN, Bagramian RA

Singapore Dent J, 1996 Jul;21(1):11-5.

PMID: 10597176

Two hundred and twenty-nine children aged 12-15 years who were continuous residents of Penang island, in the north of Peninsular Malaysia were examined for caries and enamel defects. Caries prevalence was 82.2% with a DMFT score of 3.4 and DMFS score of 4.9; there were very few missing teeth and very little untreated caries in the population examined. Majority of DF (decayed/filled) lesions were pits and fissures with approximal and smooth surfaces relatively caries free. The prevalence of enamel defects was 76.4% with 19.1% of all teeth examined being affected. More posterior than anterior teeth were affected by enamel defects just as there were more maxillary than mandibular teeth affected by enamel defects. Diffuse patchy opacities were the most common defect diagnosed and this was found in 60.2% of the population examined. A bilateral distribution of diffuse patchy opacities was seen in 41.5% of the population examined. Tooth surfaces with enamel defects were no more susceptible to caries than defect-free surfaces.

Matched MeSH terms: Fluorosis, Dental/epidemiology*

Prevalence of dental fluorosis in children in Singapore

Lo GL, Bagramian RA

Community Dent Oral Epidemiol, 1996 Feb;24(1):25-7.

PMID: 8833510

Prevalence and severity of dental fluorosis was assessed in 1739 Singaporean children aged 9, 12 and 16 yr in three different ethnic groups. All subjects had resided since birth in Singapore, which has a tropical climate. The water supply was fluoridated in 1957 at a level of 0.7 ppm. In this sample, mouth prevalence was 82.6%, tooth prevalence was 66.9%, the community fluorosis index was at 1.96; 9.2% of children had severe fluorosis and 26.2% had moderate fluorosis. There were no significant gender or racial differences. Prevalences were higher than those reported in most other studies. Due to differences in indices used and methodology, comparisons could not be made directly with other studies.

Matched MeSH terms: Fluorosis, Dental/epidemiology*

Fluoride contamination, health problems and remediation methods in Asian groundwater: A comprehensive review

Yadav KK, Kumar S, Pham QB, Gupta N, Rezania S, Kamyab H, et al.

Ecotoxicol Environ Saf, 2019 Oct 30;182:109362.

PMID: 31254856 DOI: 10.1016/j.ecoenv.2019.06.045

In low concentration, fluoride is considered a necessary compound for human health. Exposure to high concentrations of fluoride is the reason for a serious disease called fluorosis. Fluorosis is categorized as Skeletal and Dental fluorosis. Several Asian countries, such as India, face contamination of water resources with fluoride. In this study, a comprehensive overview on fluoride contamination in Asian water resources has been presented. Since water contamination with fluoride in India is higher than other Asian countries, a separate section was dedicated to review published articles on fluoride contamination in this country. The status of health effects in Asian countries was another topic that was reviewed in this study. The effects of fluoride on human organs/systems such as urinary, renal, endocrine, gastrointestinal, cardiovascular, brain, and reproductive systems were another topic that was reviewed in this study. Different methods to remove fluoride from water such as reverse osmosis, electrocoagulation, nanoﬁltration, adsorption, ion-exchange and precipitation/coagulation were introduced in this study. Although several studies have been carried out on contamination of water resources with fluoride, the situation of water contamination with fluoride and newly developed technology to remove fluoride from water in Asian countries has not been reviewed. Therefore, this review is focused on these issues: 1) The status of fluoride contamination in Asian countries, 2) health effects of fluoride contamination in drinking water in Asia, and 3) the existing current technologies for defluoridation in Asia.

Matched MeSH terms: Fluorosis, Dental/epidemiology

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