[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit ::
:: Volume 26, Issue 4 (10-2014) ::
J Islam Dent Assoc Iran 2014, 26(4): 255-261 Back to browse issues page
Effect of Translucency and Opacity of Fiber Reinforced Intracanal Posts on Fracture Resistance of Compromised Teeth
Mohammad Reza Maleki Pour1, Farzaneh Shirani *2, Nasrin Rafieian Koopaei3
1- Member of Dental Research Center and Associate Professor, Department of Operative Dentistry, School of Dentistry, Azad Uni-versity (Khorasgan Branch). Isfahan, Iran
2- Assistant Professor, Department of Operative Dentistry, School of Dentistry, Isfahan University of Medical Sciences. Isfahan, Iran , f_shirani@dnt.mui.ac.ir
3- Assistant Professor, Department of Oral and Maxillofacial Medicine, School of Dentistry, Hamedan University of Medical Sciences. Hamedan, Iran
Abstract:   (3631 Views)

Background and Aim: Severely damaged teeth with no support at the coronal portion of root canal are very difficult to restore. The aim of this in-vitro study was to evaluate intraradicular reinforcement by dual cure composite resin and two different types of fiber reinforced composite (FRC) posts (translucent and opaque) in structurally compromised roots.

Materials and Methods: Root canal therapy was performed for 48 maxillary central inci-sors. The teeth were divided into four groups, and specimens from three groups were pre-pared to simulate the teeth with flared canals. In the 1st group, no weakening was done. In the 2nd group, the compromised area of the root canal was filled with gutta percha. In the 3rd and 4th groups, universal DT light and DT white posts were used respectively in the root canal to 8 mm below the margin of the palatal wall. The posts were cemented with dual-cure composite. In all groups, the access cavity was restored with light-cure compo-site resin. After being mounted, all specimens were pressed at an angle of 45º relative to the long axis of the teeth. The amount of force at fracture was recorded. Results of frac-ture load were evaluated by one-way ANOVA and LSD post hoc test and the results of mode of fracture were evaluated by chi–square test.

Results: The mean fracture load for the four groups was 170.12, 71.40, 125.8 and 148.59 kgf, respectively. There was a significant difference between the mean fracture load of 1st and 2nd groups and that of other groups (p=0.001). The mean fracture load of the 4th group was significantly (p=0.002) higher than that of the 3rd group. The frequency of restorable fractures was significantly different between these two groups (p<0.001).

Conclusion: Using dual cure composite resin and FRC posts in roots with thin walls will reinforce the compromised teeth but the type of post will affect the outcome.

Keywords: Compromised teeth, Fracture resistance, Fiber reinforced post, Translucency
Full-Text [PDF 169 kb]   (1322 Downloads)    
Type of Study: Orginal | Subject: Restorative Dentistry
1. Mortazavi V, Fathi M, Katiraei N, Shahnaseri S, Badrian H, Khalighinejad N. Fracture resistance of structurally compromised and normal endodontically treated teeth restored with dif-ferent post systems: An in vitro study. Dent Res J (Isfahan). 2012 Mar; 9(2):185-91.
2. Chen MY, Chen KL, Chen CA, Tayebaty F, Rosenberg PA, Lin LM. Responses of imma-ture permanent teeth with infected necrotic pulp tissue and apical periodontitis/abscess to revascularization procedures. Int Endod J. 2012 Mar; 45 (3):294-305.
3. Krastl G, Filippi A, Zitzmann NU, Walter C, Weiger R. Current aspects of restoring traumatically fractured teeth. Eur J Esthet Dent. 2011 Summer;6(2):124-41.
4. Silva GR, Santos-Filho PC, Simamoto-Júnior PC, Martins LR, Mota AS, Soares CJ. Effect of post type and restorative techniques on the strain and fracture resistance of flared incisor roots. Braz Dent J. 2011 Fall; 22(3):230-7.
5. Katebzadeh N, Dalton BC, Trope M. Strengthening immature teeth during and after apexification. J Endod. 1998 Apr; 24(4):256-9.
6. Moosavi H, Maleknejad F, Kimyai S. Fracture resistance of endodontically-treated teeth restored using three root-reinforcement meth-ods. J Contemp Dent Pract. 2008 Jan 1; 9(1):30-7.
7. Mattos CM, Las Casas EB, Dutra IG, Sousa HA, Guerra SM. Numerical analysis of the biomechanical behaviour of a weakened root after adhesive reconstruction and post-core rehabilitation. J Dent. 2012 May;40(5):423-32.
8. Coelho CS, Biffi JC, Silva GR, Abrahão A, Campos RE, Soares CJ. Finite element analy-sis of weakened roots restored with composite resin and posts. Dent Mater J. 2009 Nov; 28(6):671-8.
9. Brown PL, Hicks NL. Rehabilitation of endodontically treated teeth using the radio-paque fiber post. Compend Contin Educ Dent. 2003 Apr; 24(4):275-8, 280-2.
10. Signore A, Benedicenti S, Kaitsas V, Barone M, Angiero F, Ravera G. Long-term survival of endodontically treated, maxillary anterior teeth restored with either tapered or parallel-sided glass-fiber posts and full-ceramic crown coverage. J Dent. 2009 Feb;37(2):115-21.
11. Seefeld F, Wenz HJ, Ludwig K, Kern M. Re-sistance to fracture and structural characteris-tics of different fiber reinforced post systems. Dent Mater. 2007 Mar; 23(3):265-71.
12. Perdigão J, Gomes G, Lee IK.The effect of silane on the bond strengths of fiber posts. Dent Mater. 2006 Aug; 22(8):752-8.
13. Roberts HW, Leonard DL, Vandewalle KS, Cohen ME, Charlton DG. The effect of a translucent post on resin composite depth of cure. Dent Mater. 2004 Sept;20(7):617-22.
14. Faria e Silva AL, Arias VG, Soares LE, Martin AA, Martins LR. Influence of fiber-post translucency on the degree of conversion of a dual-cured resin cement. J Endod. 2007 Mar; 33 (3):303-5.
15. da Silveira Teixeira C, Santos Felippe MC, Silva-Sousa YT, de Sousa-Neto MD. Interfa-cial evaluation of experimentally weakened roots restored with adhesive materials and fi-bre posts: An SEM analysis. J Dent. 2008 Sept;36(9):672-82.
16. Taneja S, Kumari M, Gupta A. Evaluation of light transmission through different esthetic posts and its influence on the degree of polymerization of a dual cure resin cement. J Conserv Dent. 2013 Jan;16(1):32-5.
17. Afroz S, Tripathi A, Chand P, Shanker R. Stress pattern generated by different post and core material combinations: a photoelastic study. Indian J Dent Res. 2013 Jan-Feb; 24(1):93-7.
18. Binus S, Koch A, Petschelt A, Berthold C. Restoration of endodontically treated teeth with major hard tissue loss--bond strength of conventionally and adhesively luted fiber - reinforced composite posts. Dent Trau-matol. 2013 Oct; 29(5):339-54.
19. Kremeier K, Fasen L, Klaiber B, Hofmann N. Influence of endodontic post type (glass fiber, quartz fiber or gold) and luting material on push-out bond strength to dentin in vitro. Dent Mater. 2008 May;24(5):660-6.
20. Monticelli F, Ferrari M, Toledano M. Cement system and surface treatment selection for fiber post luting. Med Oral Patol Oral Cir Bucal. 2008 Mar 1;13(3):E214-21.
21. Aksornmuang J, Nakajima M, Panyayong W, Tagami J. Effects of photocuring strategy on bonding of dual-cure one-step self-etch adhe-sive to root canal dentin. Dent Mater J. 2009 Mar; 28(2): 133-41.
22. Bonfante G, Kaizer OB, Pegoraro LF, do Valle AL. Tensile bond strength of glass fiber posts luted with different cements. Braz Oral Res. 2007 Apr-Jun;21(2):159-64.
23. Erdemir U, Mumcu E, Topcu FT, Yildiz E, Ya-manel K, Akyol M. Micro push-out bond strengths of 2 fiber post types luted using dif-ferent adhesive strategies. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010 Oct; 110(4):534-44.
24. Dietschi D, Duc O, Krejci I, Sadan A. Biomechanical considerations for the restora-tion of endodontically treated teeth: a systemat-ic review of the literature--Part 1. Composition and micro-and macrostructure alterations. Quin-tessence Int. 2007 Oct;38(9):733-43.
25. Luiz BKM, Mattei FP, Francisco KRM, Chain MC, Pires ATN. Fracture resistance, two point bending strength and morphological characteris-tics of pulpless teeth restored with fiber-reinforced composite posts. RSBO. 2012 Jul-Sept; 9(3):272-9.
26. Mallmann A, Jacques LB, Valandro LF, Muench A. Microtensile bond strength of pho-toactivated and autopolymerized adhesive sys-tems to root dentin using translucent and opaque fiber-reinforced composite posts. J Prosthet Dent. 2007 Mar;97(3):165-72.
27. Goracci C, Corciolani G, Vichi A, Ferrari M. Light-transmitting ability of marketed fiber posts. J Dent Res. 2008 Dec;87(12):1122-6.
28. Shadman N, Atai M, Ghavam M, Kermanshah H, Ebrahimi SF. Parameters affecting degree of conversion of dual-cure resin cements in the root canal: FTIR analysis. J Can Dent Assoc. 2012; 78: c53.
Send email to the article author

Add your comments about this article
Your username or Email:


XML     Print

Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Maleki Pour M R, Shirani F, Rafieian Koopaei N. Effect of Translucency and Opacity of Fiber Reinforced Intracanal Posts on Fracture Resistance of Compromised Teeth. J Islam Dent Assoc Iran. 2014; 26 (4) :255-261
URL: http://jidai.ir/article-1-1720-en.html

Volume 26, Issue 4 (10-2014) Back to browse issues page
Journal of Islamic Dental Association of Iran


This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly

Persian site map - English site map - Created in 0.04 seconds with 30 queries by YEKTAWEB 4312