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J Dent (Shiraz) ; 21(2): 127-131, 2020 Jun.
Article in English | MEDLINE | ID: mdl-32582828

ABSTRACT

STATEMENT OF THE PROBLEM: Smoking affects not only smokers themselves, but also the people around them. 700 million children are exposed to second hand tobacco worldwide. One of the adverse effects of being a passive smoker is oral pigmentation. PURPOSE: This study was conducted to evaluate the association between smoking of a parent at home and oral pigmentation in children, and the characteristic factors affecting that. MATERIALS AND METHOD: In this retrospective cohort study, 140 healthy children aged 4 to 10 (mean age= 6.68±1.60), 70 with smoker parent and 70 without smoker parents, were examined for oral pigmentation. Environmental factors were evaluated by asking the parents to fill a questionnaire. Data were analyzed using Chi-square test, Fisher's exact test, Logistic regression, and Spearman scale. RESULTS: There was a meaningful relationship between having a smoker parent and oral pigmentation (p= 0.0001). Spearman's correlation showed parents' duration of cigarette smoking and the number of cigarettes per day could meaningfully affect the severity of oral pigmentation (R=0.329). The study did not find a statistical relationship between oral pigmentation in passive smoking and gender or house area. CONCLUSION: Children exposed to secondhand tobacco are at more risk for oral pigmentation. Its severity depends on duration of cigarette smoking and the number of cigarettes per day.

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