In vitro Comparative Evaluation of the Fracture Resistance of Simulated Immature Teeth reinforced with Different Apical Barriers and Obturation Combination
Neveen A Shaheen, Nahla G El-Din El-Helbawy
Citation Information :
Shaheen NA, El-Helbawy NG. In vitro Comparative Evaluation of the Fracture Resistance of Simulated Immature Teeth reinforced with Different Apical Barriers and Obturation Combination. World J Dent 2016; 7 (3):113-118.
This study aimed to assess and compare the fracture resistance of simulated immature teeth reinforced with Biodentine (BD) and mineral trioxide aggregate (MTA) as apical barriers and two root canal backfilling combination (gutta-percha/AH26, MetaSeal).
Materials and methods
A total of 70 extracted human maxillary incisors were randomly divided into seven groups (n = 10). The positive control group was not instrumented. For the other groups, coronal access was made and root canals were instrumented using the ProTaper, up to F5 followed by six Peeso reamers which were allowed to pass 1 mm beyond the apex to size 6 (1.7 mm) to simulate immature teeth. The apical 4 mm of their root canals was filled with either MTA or BD apical barrier, then backfilled with gutta-percha/AH26 or MetaSeal obturation combination. The negative control group was left unfilled. Composite resin was used to restore the coronal access cavities. The maximum load for fracture of each tooth was recorded utilizing a universal testing machine. Data were analyzed using two-way analysis of variance.
The noninstrumented group I had the highest fracture resistance and differed significantly (p < 0.05) from the negative control groups. On the contrary, no significant difference was found between BD and MTA groups, regardless of the backfilling combination (p > 0.05).
There was no difference between MTA and BD apical barriers and the backfilling combination regarding their resistance to root fracture.
How to cite this article
Shaheen NA, El-Din El-Helbawy NG. In vitro Comparative Evaluation of the Fracture Resistance of Simulated Immature Teeth reinforced with Different Apical Barriers and Obturation Combination. World J Dent 2016;7(3):113-118.
Prognosis of luxated non-vital maxillary incisors treated with calcium hydroxide and filled with gutta-percha. A retrospective clinical study. Endod Dent Traumatol 1992 Apr;8(2):45-55.
Fracture resistance of simulated immature teeth filled with Resilon, gutta percha, or composite. J Endod 2007 Apr;33(4):480-483.
Interventions for treating traumatized necrotic immature permanent anterior teeth: inducing a calcific barrier and root strengthening. Dent Traumatol 2009 Aug;25(4):367-379.
The effect of mineral trioxide aggregate on the apexification and periapical healing of teeth with incomplete root formation. Int Endod J 2006 Jan;39(1):2-9.
Apexification of immature apices of pulpless permanent anterior teeth with calcium hydroxide. J Endod 1987 Jun;13(6):285-290.
Long-term calcium hydroxide as a root canal dressing may increase risk of root fracture. Dent Traumatol 2002 Jun;18(3):134-137.
Comparative investigation of marginal adaptation of mineral trioxide aggregate and other commonly used root-end filling materials. J Endod 1995 Jun;21(6):295-299.
Clinical applications of mineral trioxide aggregate. J Endod 1999 Mar;25(3):197-205.
Ex vivo study of the efficiency of two techniques for the removal of mineral trioxide aggregate used as a root canal filling material. J Endod 2008 Oct;34(10):1239-1242.
Evaluation of the tissue reaction to fast endodontic cement (CER) and Angelus MTA. J Endod 2009 Oct;35(10):1377-1380.
Characterization and hydration kinetics of tricalcium silicate cement for use as a dental biomaterial. Dent Mater 2011 Aug;27(8):836-844.
Investigation of the physical properties of tricalcium silicate cement-based root-end filling materials. Dent Mater 2013 Feb;29(2):e20-e28.
Biodentine induces TGF-b1 release from human pulp cells and early dental pulp mineralization. Int Endod J 2012 May;45(5):439-448.
Reinforcement of simulated immature roots restored with composite resin, mineral trioxide aggregate, gutta-percha, or a fiber post after thermocycling. J Endod 2011 Oct;37(10):1390-1393.
Evaluation of fracture resistance in simulated immature teeth using Resilon and Ribbond as root reinforcements an in vitro study. Dent Traumatol 2009 Aug;25(4):433-438.
Fracture resistance of simulated immature maxillary anterior teeth restored with fiber posts and composite to varying depths. Dent Traumatol 2013 Oct;29(5):394-398.
Comparative in vitro study of the sealing efficiency of white vs greyProRoot mineral trioxide aggregate formulas as apical barriers. Dent Traumatol 2008 Apr;24(2):207-213.
Evaluation of fracture resistance of endodontically treated teeth restored with prefabricated posts and composites with varying quantities of remaining coronal tooth structure. J Appl Oral Sci 2005 Jun;13(2):141-146.
Fracture resistance of immature teeth filled with BioAggregate, mineral trioxide aggregate and calcium hydroxide. Dent Traumatol 2011 Jun;27(3):174-178.
Evaluation of fiber-composite laminate in the restoration of immature, non-vital maxillary central incisors. J Endod 2001 Jan;27(1):18-22.
Reinforcement of immature roots with a new resin filling material. J Endod 2006 Apr;32(4):350-353.
Radiographic and clinical outcomes of the treatment of immature permanent teeth by revascularization or apexification: a pilot retrospective cohort study. J Endod 2014 Aug;40(8):1063-1070.
Fracture resistance and histological findings of immature teeth treated with mineral trioxide aggregate. Dent Traumatol 2008 Jun;24(3):272-276.
Physicochemical basis of the biologic properties of mineral trioxide aggregate. J Endod 2005 Feb;31(2):97-100.
Fracture resistance and reinforcement of immature roots with gutta percha, mineral trioxide aggregate and calcium phosphate bone cement: a standardized in vitro model. Dent Traumatol 2010 Apr;26(2):137-142.
Influence of the thickness of mineral trioxide aggregate on sealing ability of root-end fillings in vitro. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2004 Jan;97(1):108-111.
Characterization of Ca3SiO5/CaCl2 composite cement for dental application. Dent Mater 2008 Jan;24(1):74-82.
Interactions between a calcium silicate cement (Biodentine) and its environment. J Dent Res 2010;89:Abstract no. 401.
4-META use in dentistry: a literature review. J Prosthet Dent 2002 Feb;87(2):216-224.
In vitro cytotoxicity evaluation of a self-adhesive, methacrylate resin-based root canal sealer. J Endod 2008 Sep;34(9):1085-1088.
Immunohistochemical analysis of subcutaneous tissue reactions to methacrylate resin-based root canal sealers. Int Endod J 2011 Jul;44(7):669-675.
Fracture resistance of roots endodontically treated with a new resin filling material. J Am Dent Assoc 2004 May;135(5):646-652.
Evaluation of the influence of smear layer on the apical and coronal sealing ability of two sealers. J Endod 2004 Jun;30(6):406-409.
A comparative study of physicochemical properties of AH Plus and Epiphany root canal sealants. Int Endod J 2006 Jun;39(6):464-471.
Impact of endodontic treatments on the rigidity of the root. J Dent Res 2006 Apr;85(4):364-368.
Eid G, Ibraheem D. Fracture resistance of immature roots obturated with three different filling materials. J Am Sci 2012;8(5):617-624.
Bioactivity evaluation of three calcium silicatebased endodontic materials. Int Endod J 2013 Sep;46(9):808-814.
Resistance to vertical fracture of MTA-filled roots. Dent Traumatol 2014 Feb;30(1):36-42.
Comparison of the fracture resistance of simulated immature permanent teeth using various canal filling materials and fiber posts. Dent Traumatol 2012 Dec;28(6):457-464.