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Title

EVALUATION OF THE EFFECT OF PASSIVE SMOKING ON LACTOFERRIN AND AST ON 12 - 15 YEARS OLD CHILDREN AND ADOLESCENTS

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Abstract

 Background: PASSIVE SMOKERs are involuntarily exposed to cigarette or tobacco smoke and as known, inhalation of environmental tobacco smoke is a serious threat. There is little information about the effect of passive smoking on salivary markers and periodontal indices.Objectives: This study investigated the effect of passive smoking on LACTOFERRIN and AST in 12-15 years old children and adolescents.Patients and Methods: This case-control analytic correlation type study with no-convenience random sampling method was performed on 160 children aged 12 - 15 who had smokers in their families. The eligible children were divided into two equal groups; 80 cot+ children as case group and 80 cot– children as control group, matched according to age, sex and plaque index. Plaque index was obtained from all subjects. 2 cc unstimulated salivary samples were collected by spitting method. The collected specimens were tested by LACTOFERRIN and AST kits in biochemistry were measured on the day of sampling laboratory. Gingival index Loe and Silness (GI) and Probing Pocket Depth (PPD).Results: Mean and Standard Deviation of PPD and GI was 2.01±0.077 and 1.53±0.055 in experimental group and 1.93±0.073 and 1.49±0.046 in control group respectively (P<0.001). The Mean and Standard Deviation parameters of LACTOFERRIN and AST, in the experimental group was 38.66±25.15 and 13.45±6.33 and in the control group 10.18±6.82 and 6.53±2.65 group, respectively (P<0.001).Conclusions: Passive smoking can be effective on inflammatory process of periodontal and salivary biomarkers related to inflammation. LACTOFERRIN was 11-104 in case group and 0.5-38 in control group. Aspartat aminotransferase in case group was 2.64-30.43 and in control group it was 2.16-12.02.

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