Oral and dental affections in mercury‐exposed workers

Fahmy, Mourad S.

doi:10.1111/j.1600-0528.1978.tb01142.x

Cited by 4 publications

(2 citation statements)

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“…[13] The most common oral mucosal lesion in the study was leukoplakia. Mandibular sulcus region was the most common site of ulceration in this study and in another study conducted by Fahmy[14] on workers engaged in some other occupation. This may be due to the habit of keeping the tobacco quid most of the times in the mandibular sulcus region.…”

Section: Discussionsupporting

confidence: 71%

Dental health status and treatment needs of transport workers of a northern Indian city: A cross-sectional study

et al. 2013

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Aim:To assess the dental health status and treatment needs of transport workers working in Chandigarh Transport Undertaking (C.T.U.) buses, Chandigarh.Materials and Methods:A cross-sectional study was conducted on all the available C.T.U. workers at all three bus depots. The data were recorded on a modified W.H.O. format (1997). A total of 1008 subjects constituted the final sample size.Results:The mean age of the subjects was 45.3 ± 7.8 years, and 97% (978) were males. Prevalence of dental caries was 63.4% and mean DMFT was 5.02. 47.6% of subjects needed some prosthesis in the maxillary arch while 53.3% needed some prosthesis in the mandibular arch. Regarding highest CPI (Community Periodontal Index) score, 8.13% of the subjects had healthy periodontium while maximum subjects (73.2%) had a score 2 (Calculus).Conclusion:Mean DMFT (Decayed, Missing and Filled Teeth) was satisfactory. Prosthetic need of the subjects was high with only a few subjects possessing prosthesis. Advanced periodontal disease (CPI score, 4) affected small number of subjects with maximum subjects (73%) having a CPI score of 2.

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Section: Discussionsupporting

confidence: 71%

Dental health status and treatment needs of transport workers of a northern Indian city: A cross-sectional study

et al. 2013

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“…The results with the CPITN index were also compared with previously published data for another similar population. Results-There was no significant difference between the exposed workers and the referents with respect to the number of remaining [4][5][6][7] In subjects with ongoing mercury exposure,35 increased periodontal disease, soreness of the mouth, loose teeth, and in one instance increased number of missing teeth compared with controls,3 have been reported. A study on 642 workers exposed to mercury and 382 controls, however, reported no correlation of oral abnormalities with mercury exposure,6 and in a study performed on 82 people currently exposed to mercury and 82 controls with similar oral hygiene between the groups, no effect of mercury exposure was found on the occurrence of gingivitis, periodontitis, or the number of missing teeth.7…”

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confidence: 99%

Dental health in workers previously exposed to mercury vapour at a chloralkali plant.

et al. 1994

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Objectives-The dental health of 73 workers previously exposed to mercury vapour at a chloralkali plant was studied and compared with that of 51 nonexposed referents. Methods-A record of oral, periodontal, gingival and mucosal conditions, including teeth, restorations, prostheses, and oral hygiene, was mercury and 382 controls, however, reported no correlation of oral abnormalities with mercury exposure,6 and in a study performed on 82 people currently exposed to mercury and 82 controls with similar oral hygiene between the groups, no effect of mercury exposure was found on the occurrence of gingivitis, periodontitis, or the number of missing teeth.7These studies have deficiencies in both the documentation of exposure and presentation as well as being contradictory in results, which makes it difficult to draw firm conclusions from them.In the mercury based chloralkali industry, where liquid mercury is used as the cathode in the electrolysis of the brine, workers are exposed to mercury vapour. Leakage and maintenance work may lead to evaporation of mercury into the working atmosphere.In this study, a comparison was made between exposed workers and referents in clinical and anamnestic variables of oral health. Specifically, the alleged noxious effects of mercury on oral health were closely considered. The findings have also been compared with published results for another Norwegian population that served as an external reference group. This study is one of the first to present epidemiological data to refute historical claims that mercury may induce loosening or exfoliation of teeth. ' Materials and methods SUBJECTS AND EXPOSUREThis study was performed during 1989 and 1990 as part of a comprehensive investigation on possible chronic adverse health effects among workers previously exposed to mercury vapour at a chloralkali plant that was shut down in 1987.8Details of the main study design and the assessment of exposure to mercury vapour have been published elsewhere.8 In brief, male workers below the age of 65 exposed for at least one year were eligible for inclusion in the study. The referents were randomly selected among men, frequency matched for age, who worked in a nitrate fertiliser plant for the same company.Altogether, the oral conditions of 73 workers previously exposed to mercury and 51 referents were examined. The mean age of the exposed subjects was 44-9 (median 44-1, range 24-2-64-8) v 45-8 (median 45-3, range 24-3-63-7) among the referents. The mean current urinary mercury concentration of the exposed workers was 24-8 (median 17-5, range 5-0-112-0) nmol/l and 15-4 (median 14-0, range 5 0-50 5) nmolffamong the refer-656 on 9 May 2018 by guest. Protected by copyright.

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Dental Amalgam

Arenholt-Bindslev¹,

Hørsted‐Bindslev²

Biocompatibility of Dental Materials

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Oral and dental affections in mercury‐exposed workers

Cited by 4 publications

References 8 publications

Dental health status and treatment needs of transport workers of a northern Indian city: A cross-sectional study

Dental health status and treatment needs of transport workers of a northern Indian city: A cross-sectional study

Dental health in workers previously exposed to mercury vapour at a chloralkali plant.

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