Evidence map›Paper›PMID 33947382›Full record

ArticleBMC oral health2021

Fluoride in the drinking water and dental caries experience by tooth surface susceptibility among adults.

Lina Stangvaltaite-Mouhat, Alina Puriene, Indre Stankeviciene, Jolanta Aleksejuniene

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In one paragraph

Article in BMC oral health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

7 citing papers in PubMed.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

Lina Stangvaltaite-MouhatOral Health Centre of Expertise in Eastern Norway, Sørkedalsveien 10A, 0369, Oslo, Norway. linas@viken.no.ORCID 0000-0002-5057-8455
Alina PurieneInstitute of Dentistry, Faculty of Medicine, Vilnius University, M. K. Čiurlionis str. 21, 03101, Vilnius, Lithuania.
Indre StankevicieneInstitute of Dentistry, Faculty of Medicine, Vilnius University, M. K. Čiurlionis str. 21, 03101, Vilnius, Lithuania.
Jolanta AleksejunieneDepartment of Oral Health Sciences, Faculty of Dentistry, The University of British Columbia, 2199 Wesbrook Mall, Vancouver, Canada.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundDental caries is the most prevalent non-communicable health condition globally. The surface-based susceptibility hierarchy indicates that surfaces in the same group have similar susceptibility to caries, where the most susceptible group consists of occlusal surfaces of first molars and buccal surfaces of lower first molars, and the least susceptible surfaces are smooth and proximal surfaces of first premolars, canines and incisors. Therefore, fluoride in the drinking water could impact one group more than the other group. The present study examined the association between fluoride levels in the drinking water and dental caries experience in adults in the context of varying tooth surface susceptibility.

methodsData from the cross-sectional National Lithuanian Oral Health Survey conducted in 2017-2019 included a stratified random sample of 1398 35-74-year-olds (52% response rate). Dental caries experience in dentine was measured at a surface level. The surfaces were grouped according to their caries susceptibility (group 1 being the most and group 4 the least susceptible), and dental caries experience was calculated separately for each susceptibility group, creating four outcomes. Information about explanatory variable, fluoride levels in the drinking water, was provided by the water suppliers. The questionnaire inquired about potential determinants: sociodemographic characteristics and oral health-related behaviors. Chi-square, Mann-Whitney U and Kruskal Wallis tests were used for descriptive statistics, and linear regression analyses to examine the association between fluoride levels and four outcomes.

resultsThe proportions of median decayed, missing, filled surfaces decreased following the surface-based susceptibility hierarchy (group 1-33%, group 2-28%, group 3-24%, group 4-15%). When adjusted for potential determinants, higher-level fluoride (≥ 0.7 ppm vs < 0.7 ppm) in the drinking water associated with lower dental caries experience in all surface-based susceptibility hierarchy groups; Group 1: β = - 0.23 (95 %CI - 0.44; - 0.001), Group 2: β = - 0.44 (95 %CI - 0.82; - 0.07), Group 3: β = - 1.14 (95 %CI - 1.88; - 0.41) and Group 4: β = - 6.28 (95 %CI - 9.29; - 3.30).

conclusionsThe higher-level fluoride in the drinking water associated with lower dental caries experience in adults and this was observed in all surface-based susceptibility groups. However, there is a need to validate the surface-based susceptibility hierarchy in longitudinal adult studies.

Indexed as

Dental CariesDrinking WaterAdultCross-Sectional StudiesFluoridesHumansMolarDrinking WaterFluoridesAdultDental cariesDrinking waterFluoridesTooth surface susceptibility

Identifiers

PMID33947382
PMCPMC8097874

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.