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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 | Assessment of a rapid method,using soil cores, for estimating the amount and distribution of crop roots in the field 显示文摘 | Drew M C Saker L R | 1980 | Plant and Soil1980，55，： | 1 |
| 3 | New oscillation criteria for first order nonlinear neutral delay differential equations显示文摘 | ELABBASY E M HASSAN T S SAKER S H | 2006 | J Appl Math Comput2006，2，12： | 1 |
| 4 | Oscillation of nonlinear delay differential equations with application to models exhibiting the Allee effect显示文摘 | Elabbasy E M Saker S H Sail K | 1999 | Far East J Math Sci1999，1，4： | 1 |
| 5 | Oscillation criteria for first order nonlinear neutral delay differential equations显示文摘 | ELABBASY E M HASSAN T S SAKER S H | 2005 | J Differential Equations2005，134，： | 1 |
| 6 | 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 |
| 7 | Oscillation of second order delay dynamic equations显示文摘 | AGARWAL R P BOHNER M SAKER S H | 2005 | Canadian Applied Mathematics Quarterly2005，13，1： | 1 |
| 8 | Oscillation of second order delay dynamic equations 显示文摘 | Agarwal R P Bohner M Saker S H | 2005 | Canadian Applied Mathematics Quarterly2005，13，1： | 1 |
| 9 | Changes in the kinetics of phosphate and potassium absorption in nutrient-deficient harley roots measured by a solution-depletion technique显示文摘 | DREW M C SAKER L R | 1984 | Plants1984，160，： | 1 |
| 10 | Oscillation of second order delay dynamic equations显示文摘 | Agarwal R P Bohner M Saker S H | 2005 | Canadian Applied Mathematics Quarterly2005，13，1： | 1 |
| 11 | Effect of different surface treatments on adhesion of In-Ceram Zirconia to enamel and dentin substrates显示文摘 | Saker S Ibrahim F Ozcan M | 2013 | J Adhes Dent2013，15，4： | 1 |
| 12 | 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 |
| 13 | Oscillation of second order nonlinear dynamic equations on time scales显示文摘 | Bohner M Saker S H | 2004 | Rocky Mt J Math2004，34，： | 1 |
| 14 | Oscillation of Second Order Delay Dynamic Equations显示文摘 | AGARWAL R P BOHNER M SAKER S H | 2005 | Canadian Applied Mathematics Quarterly2005，13，1： | 1 |
| 15 | The impact of uterine fibroid embolization on resumption of menses and ovarian function显示文摘 | Chrisman H Saker M Ryu R | 2000 | J Vasc Interv Radiol2000，11，6： | 1 |
| 16 | Ionic and pH signalling from roots to shoots of flooded tomato plants in relation to stomatal closure显示文摘 | Jackson M B Leslie R Saker L R | 2003 | Plant and soil2003，253，1： | 1 |
| 17 | Oscillation in host macroparasite model with delay time显示文摘 | ELABBASY E M SAIF K SAKER S H | 2000 | Far East J Appl2000，74，： | 1 |
| 18 | Occurrence of blooms of the cyanobacterium Cylindrospermopsis raciborskii (Woloszynska) Seenayya and Subha Raju in a north Queensland domestic water supply显示文摘 | Saker M L Griffiths D J | 2001 | Marine and Freshwater Research2001，52，6： | 1 |
| 19 | Oscillation of Second-order Nonlinear Dynamic Equations on Time Scales显示文摘 | BOHNER M SAKER S H | 2004 | Rocky Mountain J Math2004，34，4： | 1 |
| 20 | Oscillation criteria for third order nonlinear differen- tial equations显示文摘 | Baculikova B Elabbasy E M Saker S H | 2008 | Math Slovaca2008，58，： | 1 |
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