In Vitro Effect of Zirconia and Zirconia Enriched Glass Fiber Composite Posts on Fracture Resistance of Endodontically Treated Teeth
Journal of Dental School,
Vol. 33 No. 2 (2015),
25 April 2015
,
Page 161-168
https://doi.org/10.22037/jds.v33i2.24740
Abstract
Objective: Despite the advantages of esthetic posts, lack of studies on their fracture resistance has limited their clinical use. This study aimed to compare the effect of two types of esthetic posts namely zirconia and zirconia enriched glass fiber composite posts on fracture resistance of endodontically treated teeth against compressive forces.
Methods: This in vitro study was conducted on 20 mandibular premolar roots cut at the cementoenamel junction (CEJ). The roots were endodontically treated and randomly divided into 2 groups of 10. After post space preparation, in group 1 zirconia posts (CosmoPost, Ivoclar, Liechtenstein) and in group 2 zirconia enriched glass fiber composite posts (Ice Light, Danville, USA) were cemented in the roots using a dual-cure resin cement (Panavia F 2.0, Kuraray, Japan) according to the manufacturer’s instructions. The teeth were restored with composite resin cores (Lumiglass, RTD, France) using a prefabricated polyester matrix. After periodontal ligament (PDL) simulation by elastic polyether impression material (Impregum, 3M ESPE, USA), specimens were mounted in acrylic resin and subjected to 1195 Instron universal testing machine. Compressive load was applied at a 90° angle relative to the long axis of the teeth at a crosshead speed of 1mm/min until fracture. Since the data were normally distributed, t-test was used for statistical analysis.
Results: The fracture resistance was 816.69 (120.89) N for zirconia posts and 843.76 (120.93) N for zirconia enriched glass fiber composite posts and these values were not significantly different (p=0.62). Fractures in group 2 were restorable.
Conclusion: The fracture resistance of zirconia and zirconia enriched glass fiber composite posts was not significantly different and both types of posts can be successfully used.
- Endodontically treated teeth
- Fracture resistance
- Zirconia enriched glass fiber composite post
- Zirconia post
How to Cite
References
Zhou L, Wang Q. Comparison of fracture resistance between cast posts and fiber posts: A meta- analysis of literature. J Endod 2013; 39:11-15.
Goracci C, Ferrari M. Current perspectives on post systems: a literature review. Aust Dent J 2011; 56 Suppl 1:77-83.
Makade CS, Meshram GK, Warhadpande M, Patil PG. A comparative evaluation of fracture resistance of endodontically treated teeth restored with different post core systems: an in-vitro study. J Adv Prosthodont2011; 3:90-95.
Sadeghi M. A comparison of the fracture resistance of endodontically treated teeth using three different post systems. J Dent (Tehran) 2006; 3:69-76.
Hayashi M, Takahashi Y, Imazato S, Ebisu S. Fracture resistance of pulpless teeth restored with post- cores and crowns. Dent Mater 2006; 22: 477-485.
Barjau-Escribano A, Sancho-Bru JL, Forner-Navarro L, Rodriguez-Cervantes PJ, Pérez- Gonzalez A, Sánchez-Marim FT. Influence of prefabricated post material on restored teeth: fracture strength and stress distribution. Oper Dent 2006; 31:47-54.
Zicari F, Coutinho E, Scotti R,VanMeerbeek B, Neart I. Mechanical properties and micro- morphology of fiber posts. Dent Mater 2013; 29: e45-52.
Akkayan B, Gulmez T. Resistance to fracture of endodontically treated teeth restored with different post systems. J Prosthet Dent 2002; 87:431-437.
Maccari PC, Conceicäo EN, Nunes MF. Fracture resistance of endodonticaally treated teeth restored with three different prefabricated esthetic posts. J Esthet Restor Dent2003;15: 25-31.
Meyenberg KH, Lüthy H, Schärer P. Zirconia posts: a new all-ceramic concept for nonvital abutment teeth. J Esthet Dent 1995; 7: 73-80.
Ozkurt Z, Işeri U, Kazazoğlu E. Zirconia ceramic post systems: a literature review and a case report. Dent Mater J 2010; 29: 233-245.
Purton DG, love RM. Rigidity and Retention of carbon fiber versus stainless steel root canal posts. Int Endod J1996: 29:262-265.
Stockton LW, Williams PT. Retention and shear bond strength of two post systems. Oper Dent 1991; 24: 210-216.
Rosentritt M, Fürer C, Behr M, Lang R, Handel G. Comparison of in vitro fracture strength of metallic and tooth-coloured posts and cores. J Oral Rehabil 2000; 27: 595- 601.
Mannocci F, Ferrari M, Watson TF. Intermittent loading of teeth restored using quartz fiber, carbon- quartz fiber, and zirconium dioxide ceramic root canal posts. J Adhes Dent 1999; 1:153- 158.
Darabi F, Namazi L. A comparison of the fracture resistance of Endodontically treated teeth using two different restoration systems. Dent Res J 2008; 5: 65-69.
Dilmener FT, Sipani C, Dalkiz M. Resistance of three new esthetic postand core systems to compressive loading. J Prosthet Dent 2006; 95:130-136.
Jalalian E, Mirzaei M. In vitro Evaluation of the effect of different diameters of quartz fiber post on fracture resistance of dental roots. Rev Clín Pesq Odontol 2009; 5: 29-36.
Sirimai S, Riis DN, Morgano SM. An in vitro study of fracture resistance and the incidence if vertical root fracture of pulp less teeth restored six post-and-core systems. J Prosthet Dent 1999; 81: 262-269.
Assif D, Bitenski A, Pilo R, Oren E. Effect of post design on resistance to fracture of endodontically treated teeth with complete crowns. J Prosthet Dent 1993; 69; 36-40.
Yang HS, Lang LA, Molina A, Felton DA. The effects of dowel design and load direction on dowel-and-core restoration. J Prosthet Dent 2001; 85: 558-567.
Abo El-Ela OA, Atta OA, EL- Mowafy O. Fracture resistance of anterior teeth restored with a novel monmetallic post. J Can Dent Assoc2008; 74:441.
Jalalian E, Nikooie S, Shams S, Jomehri S. Comparison of the effect of four non-metal posts on fracture resistance of endodontically treated teeth restored with Composite. Shiraz Univ Dent J 2010; 10: 299-308. [Persian]
Mitsui FH, Marchi GM, Pimenta LA, Ferraresi PM. In vitro study of fracture resistance of bovine roots using different intraradicular post systems. Quintessence Int 2004; 35: 612-616.
Cormier CJ, Burns DR, Moon P. In vitro comparison of the fracture resistance and failure mode of fiber, ceramic and conventional post systems at various stages of restoration. J Prosthetodont 2001; 10: 26-36.
Raygot CG, Chai J, Jameson DL. Fracture resistance and primary failure mode of endodontically treated teeth restored with carbon fiber-reinforced resin post system in vitro. Int J Prosthedont 2001; 14: 141- 145.
Purton DG, Love RM, Chandler NP. Rigidity and retention of ceramic root canal posts. Oper Dent 2000; 25:223-227.
- Abstract Viewed: 213 times
- PDF Downloaded: 124 times