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Correlation between Streptococci Mutans and salivary IgA in relation to some oral parameters in saliva of children

Authors: Lamia I. Sood --- Minan Y. H. Al-Ezzy --- Ameena R. Diajil
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2014 Volume: 26 Issue: 1 Pages: 71-79
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Saliva plays an important role in oral health. Several salivary proteins are involved in the antimicrobialdefence mechanism and are able to eliminate or inhibit bacterial growth in the oral cavity. Secretory IgA (SIgA) isone of the principal antibodies present in saliva, could help oral immunity by preventing microbial adherence,neutralizing enzymes and toxins.The aim of this study was to investigate the relationship between salivary Streptococcus Mutans (SM) count and S IgAin stimulated whole saliva in children with primary dentition compared to those with permanent teeth in relation tosome oral hygiene parameters.Material and methods: Stimulated whole saliva was collected from 50 children (25 with primary dentation and 25 withpermanent teeth). Salivary flow rate and pH was measured. Oral hygiene index (OHI) and gingival inflammation wasassessed using classical method. S IgA level was measured using an immunoassay kit and SM count was determinedby culture media.Results: Mean salivary flow rate, pH and S IgA were significantly higher among children with permanent teethcompared to those with primary dentition.Compared to primary dentition, permanent dentition was associated with a significantly reduced mean plaqueindex, increased mean gingival index and reduced mean salivary SM count.Although plaque index showed a statistically significant positive correlation with SM count, gingival index showed aweak negative correlation with bacterial count.S IgA, PH and flow rate showed a statistically significant moderately strong negative correlation with bacterial count.Conclusion: This study showed a clear correlation between count of SM in stimulated whole saliva and both SIgA andplaque index


Article
Assessment of some salivary biochemical parameters in cigarette smokers with chronic periodontitis

Authors: Yadgar Gazy يودكار غازي --- Bakhtiar Mohiadeen بختيار محي الدين --- Ziwar Al-Kasab زيور القصاب
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2014 Volume: 26 Issue: 1 Pages: 144-149
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: Cigarette smoking is an important risk factor that has a clear strong association with the prevalence and severity of chronic periodontitis (CP). Salivary biochemical parameters may be affected by both smoking and CP together.Materials and methods: Eighty systematically healthy male patients were included in this study. They were grouped based on their periodontal and smoking status. Unstimulated whole saliva (UWS) was collected from all subject. Salivary flow rate (FR) was measured during sample collection. Parameters such as salivary pH, total protein (TP), albumin (Alb), total fucose (TF), protein bound fucose (PBF) and C-reactive protein (CRP) were estimated.Results: Salivary flow rate was not altered regarding to smoking status or periodontal health status. Salivary pH was lower in smokers comparing to non- smokers, while salivary pH was not affected by periodontal health status. TF, TP and Alb were higher in CP and PBF was lower in CP comparing to healthy control, while these parameters concentrations did not affect by smoking status except for Alb (smokers with CP had lower Alb concentration comparing to non-smokers with CP). CRP was higher in smokers comparing to non- smokers, while its value was not affected by periodontal health status. Both smoking and chronic periodontitis together affect some salivary biochemical parameters, thus the concentrations of these parameters could be used as indicators for periodontal disease progression and severity in smoker with CP. Both smoking and periodontal health status together should be taken in consideration when salivary composition is studied.

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