alaa naeem | Damascus Universty (original) (raw)
Papers by alaa naeem
Journal of Baghdad College of Dentistry
Background: The bond strength of endodontic sealers with dentin is a very important property for ... more Background: The bond strength of endodontic sealers with dentin is a very important property for maintaining the integrity and seal of the root canal filling. The aim of this study was to evaluate and compare the effect of various irrigants (QMix, 17% EDTA and 2.5% NaOCl) on the push-out bond strength of AH plus and Bioceramic sealers. Materials and methods: Forty eight freshly extracted maxillary first molars human teeth with striaght palatal root were used in the study. The collected samples were randomly divided into three groups of equal sample size (n=16), according to the final irrigation regimen as follows: Group (1): QMix 2 in 1, Group (2): 17% ethylenediaminetetraacetic acid, Group (3): 2.5% sodium hypochloride. All samples were instrumented using Edge file X7 rotary instrument reaching file size 40/.04 as the final master apical file. After that each group was randomly divided into two subgroups (n=8) according to the type of sealer used: AH Plus and Total Fill BC Sealer. ...
Journal of Contemporary Medical Sciences, 2017
Objective This study highlights the protective effects of montelukast on myocardial ischemic repe... more Objective This study highlights the protective effects of montelukast on myocardial ischemic reperfusion injury induced by cardiopulmonary bypass during valve replacement surgery. Methods A total of 60 patients with valvular disease undergoing elective valve surgery were enrolled in this randomized single-blinded study. Participants were divided into two main groups: Montelukast-treated group consisted of 30 patients who were given 10 mg montelukast sodium (Singulair®, MSD, USA) tablet, once daily at bedtime for 3 days before valve surgery. Control group consisted of 30 patients who underwent valve surgery without taking montelukast tablets. Blood samples were collected at following times (T 0 ; T 1 before aortic cross clamp; T 2 after aortic cross clamp; and T 3 24 h after the surgery), for measuring several inflammatory markers. Ejection fraction (EF) was measured before surgery and three months after surgery. Pulmonary functions were measured before and after the surgery in both study groups. Results There were significant increase in the levels of TNF-a, IL-6, a2 macroglobulin/creatinine ratio and CTnI, in the control group compared to the montelukast-treated group among different study times, (P < 0.05). In addition, the EF was significantly higher in the montelukast-treated group after the valve surgery, (P < 0.05). Levels of forced vital capacity (FVC), forced expiratory volume 1 (FEV 1), and FEV 1 /FVC ratio where significantly higher in the montelukast-treated group than the control group, (P < 0.05). Conclusion This study shows the benefits of using pre-surgical montelukast supplement in ameliorating the inflammatory process in patients undergoing cardiopulmonary bypass during valve replacement surgery. Keywords montelukast, mitral and aortic valve replacement surgery, ischemia reperfusion injury, interleukin-6, cardiac troponin 1, tumor necrotic factor-alpha, alpha 2 macroglobulin/creatinine, ejection fraction, forced vital capacity (FVC), forced expiratory volume in one second (FEV 1), FEV 1 /FVC ratio This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly.
Journal of Baghdad College of Dentistry
Background: The bond strength of endodontic sealers with dentin is a very important property for ... more Background: The bond strength of endodontic sealers with dentin is a very important property for maintaining the integrity and seal of the root canal filling. The aim of this study was to evaluate and compare the effect of various irrigants (QMix, 17% EDTA and 2.5% NaOCl) on the push-out bond strength of AH plus and Bioceramic sealers. Materials and methods: Forty eight freshly extracted maxillary first molars human teeth with striaght palatal root were used in the study. The collected samples were randomly divided into three groups of equal sample size (n=16), according to the final irrigation regimen as follows: Group (1): QMix 2 in 1, Group (2): 17% ethylenediaminetetraacetic acid, Group (3): 2.5% sodium hypochloride. All samples were instrumented using Edge file X7 rotary instrument reaching file size 40/.04 as the final master apical file. After that each group was randomly divided into two subgroups (n=8) according to the type of sealer used: AH Plus and Total Fill BC Sealer. ...
Journal of Contemporary Medical Sciences, 2017
Objective This study highlights the protective effects of montelukast on myocardial ischemic repe... more Objective This study highlights the protective effects of montelukast on myocardial ischemic reperfusion injury induced by cardiopulmonary bypass during valve replacement surgery. Methods A total of 60 patients with valvular disease undergoing elective valve surgery were enrolled in this randomized single-blinded study. Participants were divided into two main groups: Montelukast-treated group consisted of 30 patients who were given 10 mg montelukast sodium (Singulair®, MSD, USA) tablet, once daily at bedtime for 3 days before valve surgery. Control group consisted of 30 patients who underwent valve surgery without taking montelukast tablets. Blood samples were collected at following times (T 0 ; T 1 before aortic cross clamp; T 2 after aortic cross clamp; and T 3 24 h after the surgery), for measuring several inflammatory markers. Ejection fraction (EF) was measured before surgery and three months after surgery. Pulmonary functions were measured before and after the surgery in both study groups. Results There were significant increase in the levels of TNF-a, IL-6, a2 macroglobulin/creatinine ratio and CTnI, in the control group compared to the montelukast-treated group among different study times, (P < 0.05). In addition, the EF was significantly higher in the montelukast-treated group after the valve surgery, (P < 0.05). Levels of forced vital capacity (FVC), forced expiratory volume 1 (FEV 1), and FEV 1 /FVC ratio where significantly higher in the montelukast-treated group than the control group, (P < 0.05). Conclusion This study shows the benefits of using pre-surgical montelukast supplement in ameliorating the inflammatory process in patients undergoing cardiopulmonary bypass during valve replacement surgery. Keywords montelukast, mitral and aortic valve replacement surgery, ischemia reperfusion injury, interleukin-6, cardiac troponin 1, tumor necrotic factor-alpha, alpha 2 macroglobulin/creatinine, ejection fraction, forced vital capacity (FVC), forced expiratory volume in one second (FEV 1), FEV 1 /FVC ratio This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly.