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51篇 您的检索式:作者名="Walid S"
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1Effect of restoration technique on resistance to fracture of endodontically treated anterior teeth with flared root canals显示文摘This study was designed to compare the impact of post and core systems on resistance to fracture of endodontically treated anterior teeth with flared root canals and to assess their fracture pattern. Sixty central incisors were cut horizontally 2 mm coronal to the cementoenamel junction(CEJ). After root canal therapy, teeth were assigned into 6 groups(n = 10 each) based on a post system and used as follows: Group C, non-flared root received size #1 glass fiber posts(Control); Group AP, flared root restored with anatomical post; Group RC, flared root restored with size #1 fiber post and cemented with thick layer of resin cement; Group CR, flared root restored with size #1 and reinforced with composite resin; Group CM, cast post-core; Group CP, CAD/CAM polymer-infiltrated ceramic post and core.Following post cementation, core build-up and crown insertion, the specimens were thermo-cycled up to 10,000 cycles(5 C/55 C; 30 seconds dwell time, 6 seconds transition time) and then statically loaded at 1 mm/minute crosshead speed using a universal testing machine. One-way ANOVA and Tukey HSD post hoc test(α= 0.05) were used for data analysis. Group C recorded significantly higher resistance to fracture values [(826.9±39.1) N] followed by group CP [(793.8±55.6) N] while group RC yielded the lowest fracture resistance values [(586.7±51.4) N]. The resistance to fracture of wide root canals can be enhanced by using one-piece CAM/CAM post and core as an alternative to the use of either glass fiber post, relined with composite resin increasing the thickness of luting cement or the use of cast post and core system. However, this was an in vitro investigation and further in vivo studies are necessary.Sary S Borzangy Samah M Saker Walid A Al-Zordk 2019The Journal of Biomedical Research2019,33,2:4
2Drainage vs. non-drainage after cholecystectomy for acute cholecystitis:a retrospective study显示文摘Many surgeons practice prophylactic drainage after cholecystectomy without reliable evidence,this study was conducted to answer the question whether to drain or not to drain after cholecystectomy for acute calculous cholecystitis.A retrospective review of all patients who had cholecystectomy for acute cholecystitis in Aseer Central Hospital,Abha,Saudi Arabia,was conducted from April 2010 to April 2012.Data were extracted from hospital case files.Preoperative data included clinical presentation,routine investigations and liver function tests.Operative data included excessive adhesions,bleeding,bile leak,and drain insertion.Complicated cases such as pericholecystic collections,mucocele and empyema were also reported.Patients who needed therapeutic drainage were excluded.Postoperative data included hospital stay,volume of drained fluid,time of drain removal,and drain site problems.The study included 103 patients allocated into two groups;group A(n = 38) for patients with operative drain insertion and group B(n = 65) for patients without drain insertion.The number of patients with preoperative diagnosis of acute non-complicated cholecystitis was significantly greater in group B(80%) than group A(36.8%)(P < 0.001).Operative time was significantly longer in group A.All patients who were converted from laparoscopic to open cholecystectomy were in group A.Multivariate analysis revealed that hospital stay was significantly(P < 0.001) longer in patients with preoperative complications.There was no added benefit for prophylactic drain insertion after cholecystectomy for acute calculous cholecystitis in non-complicated or in complicated cases.Mohammed A Bawahab Walid M Abd El Maksoud Saeed A Alsareii Fahad S Al Amri Hala F Ali Abdul Rahman Nimeri Abdul Rahman M Al Amri Adel A Assiri Mohammed I Abdul Aziz 2014The Journal of Biomedical Research2014,28,3:3
3Atypical causes of cholestasis显示文摘Cholestatic liver disease consists of a variety of disorders.Primary sclerosing cholangitis and primary biliary cirrhosis are the most commonly recognized cholestatic liver disease in the adult population,while biliary atresia and Alagille syndrome are commonly recognized in the pediatric population.In infants,the causes are usually congenital or inherited.Even though jaundice is a hallmark of cholestasis,it is not always seen in adult patients with chronic liver disease.Patients can have'silent'progressive cholestatic liver disease for years prior to development of symptoms such as jaundice and pruritus.In this review,we will discuss some of the atypical causes of cholestatic liver disease such as benign recurrent intrahepatic cholestasis,progressive familial intrahepatic cholestasis,Alagille Syndrome,biliary atresia,total parenteral nutrition induced cholestasis and cholestasis secondary to drug induced liver injury.Ken D Nguyen Vinay Sundaram Walid S Ayoub 2014World Journal of Gastroenterology2014,20,28:2
4Tree Formation with Physical Layer Security Considerations in Wireless Multi-Hop Networks显示文摘Walid S Zhang Xiangyun Behrouz M 2012IEEE Transactions on Wireless Communication2012,11,11:1
5Value of 3-Dimensional sonohystero-graphy in infertility work-up显示文摘Walid ES Ahmed S 2011J Minim Invas Gynecol2011,18,1:1
6Computational modeling of HHH therapy and impact of blood pressure and hematocrit显示文摘Robinson JS Walid MS Hyun S 0,,2:1
7An artificial neural network for non-interative calculate of the friction factor in pipe- line flow 显示文摘WALID H S SHYAM S S 1998Computer and Electronics in Agriculture1998,21,:1
8The PI3-kinase and mTOR signaling pathways are important modulators of epithelial tubule formation显示文摘Walid S Eisen R Ratcliffe D R Dai K Hussain M M Ojakian G K 2008J Cell Physiol2008,216,:1
9Identification and quantification of phenolic acids and flavonol glycosides in Tunisian Morus species by HPLC-DAD and HPLC - MS 显示文摘Ine's Thabti Walid Elfalleh He'dia Hannachi etc 2012journal of functional foods2012,4,:1
10Effect of spalling or tooth breakage on gearmesh stiffness and dynamic response of a one-stage spur gear transmission显示文摘Fakher C Walid B Mohamed S A 2008European Journal of Mechanics A/Solids2008,27,4:1
11Performance measurement of reverse logistics enterprise:a comprehensive and integrat- ed approach 显示文摘MOHAMMED S WALID A 2012Measuring Business Excellence2012,16,2:1
12Cerebellar anaplastic astrocytoma in a teenager with Ollier Disease显示文摘Walid M S Troup E C 2008J Neurooncol2008,89,1:1
13Highertiexpression levels of SOCS 1, 3, 4, 7 are associated with earlier tumour stage and better clinical outcome in human breast cancer显示文摘Walid S Wen GJ Anup S 2010BMC Cancer2010,10,:1
14Ordering and parameterizing scattered 3D data for B-spline surface approximation显示文摘Cohen Fernand S Ibrahim Walid Pintavirooj Chuchart 2000IEEE Transactions on Pattern Analysis and Machine Intelligence2000,22,6:1
15The caper(Capparis):Ethnopharmacology,phytochemical and pharmacological properties显示文摘Nizar T Walid E Ezzeddine S 0,,:1
16Multimedia digital signal processing laboratory显示文摘Fernand S Cohen Athina Petropulu Georgia Georgiou Walid Ibrahim 2000Computer Applications in Engineering Education2000,8,34:1
17Modified inference about the mean of the exponential distribution using moving extreme ranked set sampling显示文摘Walid A D Esam A S 0,,:1
18Computational modeling of HHH therapy and impact of blood pressure and hematocrit 显示文摘Robinson JS Walid MS Hyun S 2010World neurosurgery2010,74,2:1
19Enhanced Shear-Induced Platelet Aggregation in Patients Who Experience Subacute Stent Thrombosis显示文摘Nadine Ajzenberg Pierre Aubry Marie-Genevieve Huisse Agnés Cachier Walid El Amara Laurent J. Feldman Dominique Himbert Dominique Baruch Marie-Claude Guillin Ph. Gabriel Steg 2005Journal of the American College of Cardiology2005,,:1
20Improved drought and salt stress tolerance in transgenic tobacco over-expressing a novel A20/AN1zinc-finger“AlSAP”gene isolated from the halophyte grass Aeluropus littoralis显示文摘RANIA B S NABIL Z WALID B R 2010Plant Mol Biol2010,72,:1
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