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| 1 | Effect 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 | 2019 | The Journal of Biomedical Research2019，33，2： | 4 |
| 2 | Monitoring of cultivar identity in tissue culture-derived date palms using RAPD and AFLP analysis显示文摘 | Saker M M Adawy S S Mohamed A A | 2006 | Biol Plant2006，50，2： | 1 |
| 3 | Oscillation criteria for second-order nonlinear delay dynamic equations on time scales显示文摘 | ERBE L H PETERSON A SAKER S H | 2007 | J Math Anal Appl2007，333，1： | 1 |
| 4 | Changes in the kinetics of phosphate and potassium absorption in nutrient-deficient barley roots measured by a solution-depletion technique显示文摘 | Drew M C Saker L R Barber S A Jenkins W | 1984 | Planta1984，160，： | 1 |
| 5 | Hille and Nehari type criteria for third order dynamic equations 显示文摘 | ERBE L PETERSON A SAKER S H | 2007 | J Math Anal Appl2007，329，： | 1 |
| 6 | Oscillation Criteria for Second Order Nonlinear Delay Dynamic Equations显示文摘 | ERBE L PETERSON A SAKER S H | 2007 | J Math Anal Appl2007，333，： | 1 |
| 7 | Cattle mortality attributed to the toxic cyanobacterium Cylindrospermopsis raciborskii in an outback region of North Queensland显示文摘 | Saker M L Thomas A D Norton J H | 1999 | Environmental Toxicology1999，14，1： | 1 |
| 8 | Oscillation criteria for second order nonlinear delay dynamic equations显示文摘 | Erbe L Peterson A Saker S H | 2007 | J Math Anal Appl2007，333，： | 1 |
| 9 | Oscillation of solution to delay differential equations with positive and negative coefficients显示文摘 | Eabbasy E M Hegazi A S SaKer S H | 2000 | Electron J Diff Eqns2000，，3： | 1 |
| 10 | Oscillation criteria for secondorder nonlinear delay dynamic equations 显示文摘 | Erbe L Peterson A Saker S H | 2007 | J Math Anal Appl2007，333，1： | 1 |
| 11 | Optimal payment time for a retailer under permitted delay of payment by the wholesaler 显示文摘 | Jamal A M M Saker B R Wang S | 2000 | International Journal of Production Economics2000，66，1： | 1 |
| 12 | Oscillation criteria for second-order nonlinear delay dynamic equations显示文摘 | ERBE L PETERSON A SAKER S H | | 0，，01： | 1 |
| 13 | Online oil condition moni- toring using a partial discharge signal显示文摘 | El-Hag A H Saker Y A Shurrab I Y | 2011 | IEEE Transactions on Power Delivery2011，26，2： | 1 |
| 14 | Oscillation criteria for second-order nonlinear delay dynamic equa- tions显示文摘 | ERBE L PETERSON A SAKER S H | 2007 | J Math Anal Appl2007，333，： | 1 |
| 15 | On the oscillatory behavior for a certain class of third order nonlinear delay difference equations显示文摘 | Saker S H Alzabut J O Mukheimer A | | 0，，： | 1 |
| 16 | Oscillation criteria for second-order nonlinear delay dynamic equations显示文摘 | Erbe L Peterson A Saker S H | 2007 | J Math Anal Appl2007，333，： | 1 |
| 17 | Asymptotic behavior of solutions of a third-order nonlinear dy- namic equation on time scales 显示文摘 | ERBE L PETERSON A SAKER S H | 2005 | J Comput Appl Math2005，181，： | 1 |
| 18 | Hille and Nehari type criteria for third order dynamic equations 显示文摘 | ERBE L PETERSON A SAKER S H | 2007 | J Math AnalAppl2007，329，： | 1 |
| 19 | Oscillation and asymptotic behavior a third order nonlinear dynamic e- quation显示文摘 | ERBE L PETERS)N A SAKER S H | 2006 | Can Appl Math Q2006，14，： | 1 |
| 20 | Potential distribution along single negative creeping streamer in transformer oil显示文摘 | Saker A Atten P | 1993 | IEE Proceeding A1993，140，5： | 1 |
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