Abstract
To evaluate the influence of complete smear layer removal by EDTA on the resistance of root fracture of tooth restored with fiber post. Twenty single rooted premolars with average root length 16 ± 1 mm were randomly divided into two groups of ten each. All teeth were obturated with guttapercha after root canal preparation, sectioned 4 mm above the cement-enamel junction. In group I, teeth root canals were etched with 37 % phosphoric acid, fiber post cemented with self adhesive resin cement. In group II, teeth radicular dentin was treated with 17 % EDTA, followed by fiber post cementation with dual cure resin cement. Coronal part of the teeth reestablished with posterior composite and NiCr full veneer coping along with 2 mm circumferential ferrule. Restored teeth were loaded with incremental force at 30° to the long axis of the root until fracture occurred. The data obtained was evaluated with paired sample T test to compare the fracture resistance between the test groups. Group I had the mean failure load of 1,883.70 N while group II had 1,622.80 N mean failure load. Paired sample T test showed statistically significant (p value = 0.033) failure load difference between the groups tested. Within the limits of this study, it may be concluded that: the complete removal of smear layer by EDTA found to have reduced the fracture strength of tooth roots restored with an epoxy fiber post.
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References
Hunter AJ, Flood AM (1989) The restoration of endodontically treated teeth. Part 2. Posts. Aust Dent J 34(1):5–12
DeSort KD (1983) The prosthodontic use of endodontically treated teeth: theory and biomechanics of post preparation. J Prosthet Dent 49(2):203–206
do Valle AL, Pereira JR, Shiratori FK, Pegoraro LF, Bonfante G (2007) Comparison of the fracture resistance of endodontically treated teeth restored with prefabricated posts and composite resin cores with different post lengths. J Appl Oral Sci 15(1):29–32
Cohen BI, Musikant BL, Deutsch AS (1992) Comparison of retentive properties of four post systems. J Prosthet Dent 68(2):264–268
Milot P, Stein RS (1992) Root fracture in endodontically treated teeth related to post selection and crown design. J Prosthet Dent 68(3):428–435
Akkayan B, Gulmez T (2002) Resistance to fracture of endodontically treated teeth restored with different post systems. J Prosthet Dent 87(4):431–437
Boone KJ et al (2001) Post retention: the effect of sequence of post-space preparation, cementation time, and different sealers. J Endod 27(12):768–771
Serafino C et al (2004) Surface debris of canal walls after post space preparation in endodontically treated teeth: a scanning electron microscopic study. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 97(3):381–387
Prabhu SG, Rahim NS, Bhat KS (2003) Comparison of removal of endodontic smear layer using Naocl, EDTA, and different concentration of maleic acid—A SEM study. Endodontology 15:20–25
Goldman LB, Goldman M, Kronman JH, Lin PS (1981) The efficacy of several irrigating solutions for endodontics: a scanning electron microscopic study. Oral Surg Oral Med Oral Pathol 52(2):197–204
Guerisoli DM et al (2002) Evaluation of smear layer removal by EDTAC and sodium hypochlorite with ultrasonic agitation. Int Endod J 35(5):418–421
Pashley DH, Michelich V, Kehl T (1981) Dentin permeability: effects of smear layer removal. J Prosthet Dent 46(5):531–537
Gwinnett AJ (1993) Quantitative contribution of resin infiltration/hybridization to dentin bonding. Am J Dent 6(1):7–9
Ari H, Erdemir A, Belli S (2004) Evaluation of the effect of endodontic irrigation solutions on the microhardness and the roughness of root canal dentin. J Endod 30(11):792–795
Saleh AA, Ettman WM (1999) Effect of endodontic irrigation solutions on microhardness of root canal dentine. J Dent 27(1):43–46
Martinez-Insua A et al (1998) Comparison of the fracture resistances of pulpless teeth restored with a cast post and core or carbon-fiber post with a composite core. J Prosthet Dent 80(5):527–532
Pierrisnard L et al (2002) Corono-radicular reconstruction of pulpless teeth: a mechanical study using finite element analysis. J Prosthet Dent 88(4):442–448
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We thank for support on this research by King Khalid University, Kingdom of Saudi Arabia.
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Haralur, S.B., Al Faifi, A.H. & Al-Qahtani, S.S. Influence of Smear Layer Treatment on Resistance to Root Fracture in Tooth Restored with Epoxy Fiber Post. J Indian Prosthodont Soc 14, 156–160 (2014). https://doi.org/10.1007/s13191-013-0296-0
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DOI: https://doi.org/10.1007/s13191-013-0296-0