Fracture Resistance of Teeth Obturated with RealSeal™ Using Two Different Chelating Agents: An in vitro Study
Ahmed M. Al-Kahtani, Hussam Al-Fawaz, Mohammed Al-Sarhan, Khalil Al-Ali
Citation Information :
Al-Kahtani AM, Al-Fawaz H, Al-Sarhan M, Al-Ali K. Fracture Resistance of Teeth Obturated with RealSeal™ Using Two Different Chelating Agents: An in vitro Study. J Contemp Dent Pract 2010; 11 (1):25-32.
The aim of this study was to evaluate the fracture resistance of endodontically treated teeth filled with a resin-based obturation material using two different chelating agents.
Methods and Materials
Forty extracted singlecanal human teeth were prepared, instrumented, and randomly divided into three groups: Group 1 (n=15) received a final flush with 10 ml of neutralized 17% EDTA, followed by 10 ml of sodium hypochlorite (NaOCl), then obturated using lateral condensation with RealSeal. Group 2 (n=15) received a final flush of BioPure™ MTAD™, followed by 10 ml of NaOCl, then obturated using lateral condensation with RealSeal. Group 3, the control group (n=10), was instrumented but not obturated, then the root canal opening was sealed with a temporary filling material. The specimens were stored in 100% humidity for 10 days, mounted in polyester resin, and loaded to failure.
Results
The ANOVA revealed a significant difference between the control group and the experimental groups, although there was no statistically significant difference between Group 1 and Group 2 (p=0.05). The MTAD group displayed higher mean fracture load values than the EDTA group.
Conclusions
It can be concluded that filling the root canals with RealSeal™ increased the in vitro resistance to fracture of single-canal extracted human teeth when compared to instrumented and unobturated teeth. Teeth treated with MTAD demonstrated high fracture-resistance values when compared to teeth treated with 17% EDTA, but they were not statistically significant.
Determination of the moisture content of vital and pulpless teeth. Oral Surg Oral Med Oral Pathol. 1972; 34(4):661-70.
Further investigation of spreader loads required to cause vertical root fracture during lateral condensation. J Endod. 1987; 13(6):277-84.
Strength of roots before and after endodontic treatment and restoration. J Endod. 1992; 18(9):440-3.
In vitro studies of cusp reinforcement with adhesive restorative material. Br Dent J. 1986; 161(12):450-2.
Fracture resistance of teeth with Class 2 silver amalgam, posterior composite, and glass cermet restorations. Oper Dent. 1990; 15(2):42-7.
Fracture resistance of teeth with bonded amalgams. Am J Dent. 1994; 7(2):91-4.
Resilon: A novel material to replace gutta-percha. Contemp Esthetics Restorative Pract. 2005; 9(8):64-7.
Effect of MTAD on the bond strength to enamel and dentin. J Endod. 2003; 29(12):818-21.
Are endodontically treated teeth more brittle? J Endod. 1992; 18(7):332-5.
Increasing the resistance of teeth to fracture: bonded composite resin versus glass ionomer cement. Dent Mater. 1985; 1(6):229-30.
Resistance to cusp fracture in class II prepared and restored premolars. J Prosthet Dent. 1986; 55(2):184-5.
Evaluation of root reinforcement of endodontically treated teeth. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2000; 90(3):360-4.
Resistance to fracture of endodontically treated roots. Oral Surg Oral Med Oral Pathol. 1992; 73(1):99-102.
Fracture resistance of roots endodontically treated with a new resin filling material. J Am Dent Assoc. 2004; 135(5): 646-52.
Influence of resin-based adhesive root canal fillings on the resistance to fracture of endodontically treated roots: an in vitro preliminary study. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2007; 103(2):274-9.
Susceptibility of a polycaprolactonebased root canal filling material to degradation. II. Gravimetric evaluation of enzymatic hydrolysis. J Endod. 2005; 31(10):737-41.
Susceptibility of a polycaprolactonebased root canal filling material to degradation. I. Alkaline hydrolysis. J Endod. 2005; 31(8):593-8.
