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The effect of blood contamination on compressive strength of two materials used in treatment of furcation perforation (A comparative study)

Author: Linz A. Shalan لنز شالان
Journal: Journal of baghdad college of dentistry مجلة كلية طب الاسنان بغداد ISSN: 16800087 Year: 2012 Volume: 24 Issue: 4 Pages: 25-28
Publisher: Baghdad University جامعة بغداد

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Abstract

Background: blood contamination of the materials used for treatment of furcation perforation can affect on theirphysical properties (such as compressive strength). The aim of this study was to compare the effect of bloodcontamination on compressive strength for Mineral Trioxide Aggregate MTA and Resin Modified Glass IonomerCement RMGIC during furcation perforation management.Materials and methods: Forty plastic molds (4 mm diameter and 2mm thickness) were constructed to form samples.Ten samples were made for each group: MTA-without blood contamination GI, MTA- with blood contamination GII,RMGI- without blood contamination GIII and RMGI- with blood contamination GIV, and kept in plastic tubes withmoist cotton pellet at 37 oC for 4 days then all samples were subjected to compressive strength test by Instron testingmachine. Data were subjected to statistical analysis using descriptive analysis, ANOVA and t- test.Results: statistical analysis of the results showed that there was a highly significant differences in compressive strengthbetween GI and GII ( P< 0.01)and significant differences between GIII and GIV, GIII and GI, GIV and GII (P < 0.05),With lowest mean of compressive strength value was recorded to MTA- with blood contamination GII (31.32 ± 0.022Mpa) and highest mean for RMGI- without blood contamination GIII ( 168.725± 0.063Mpa).Conclusion: compressive strength value for both MTA and RMGI cement reduced when exposed to blood duringtreatment of furcation perforation, RMGI cement has higher value of compressive strength than MTA and it could besuitable choice in treatment of Furcal perforation in presence of bleeding and placing of coronal restoration after 4days.


Article
Incidence of HBV among Patients fromMaxillofacial Clinic in Ramadi Teaching Hospital

Authors: Dr. Hala F. Ahmed. د. هالة احمد --- Dr. Dunia W.S. AL- Fayad. * د.دنيا فياض
Journal: MUSTANSIRIA DENTAL JOURNAL مجلة المستنصرية لطب الاسنان ISSN: 18138500 Year: 2011 Volume: 8 Issue: 1 Pages: 45-49
Publisher: Al-Mustansyriah University الجامعة المستنصرية

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Abstract

Viral hepatitis is a major public health problem, occurring endemically in allareas of the world. Unlike hepatitis A, hepatitis B does not generally spread throughwater & food. Instead, it is transmitted through body fluids; prevention is thus theavoidance of such transmission. This study included a total of 43patients whoattended outpatient's maxillofacial clinic, in Ramadi Teaching Hospital, Ramadi city.Results showed that out of the 43 patients 3 cases turned out to be Hbs Ag positive.Contact with blood and blood products, or contaminated saliva, surgeons and dentistsare more at risk of this is a first investigation into the prevalence of acquiring HBV.All unvaccinated adults are at risk for HBV infection should be vaccinated. HepatitisB vaccine is made from a part of the hepatitis B virus.

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