Sema BELLL, Hale ARI AYDINBELGE, Ali ERDEMLR, Ayşe ÜNVERDI ELDENİZ

The effect of various types of sodium perborate bleaching agents on shear bond strength of composite resin

The effect of various types of sodium perborate bleaching agents on shear bond strength of composite resin Aim: The purpose of this study was to evaluate various types of sodium perborates mixtures effect on shear bond strength of composite resin. Material and Methods: Eighty extracted central teeth were used in this study. The crowns were splitted mesiodistally from the incisal edges to cervicals. Buccal parts of the teeth were mounted in a 4cm pipe with the use of cold acylic resin with their buccal surfaces downward. Dentin surfaces were polished and divided into main 2 groups according to the mixing solutions (n=40) (water or 30% hydrogen peroxide) and into four subgroups according to the sodium perborate type used (monohydrate, trihydrate, tetrahydrate and only the solution as control) (n=10). The dentin surfaces of the groups were treated with fresh bleaching pastes and stored in an incubator. Composites were placed onto the dentin surfaces by packing the material into cylindrical shaped matrix. Shear bond strength of each sample was measured and calculated in MPa. Results: Mixing with hydrogen peroxide decreased bond strength values significantly (p<0.05). Higher bond strength values were obtained in tetrahydrate mixed with water group. Conclusions: For the success of composite restorative treatment that will be applied to non-vital colored teeth, mixing bleaching agents with water may be preferential.

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Goldstein RE, Haywood VB, Heymann HO. Bleaching of vital and non vital teeth. ln: Cohen S, Burns RC. Pathways of the pulp. 6th ed, St.Louis Mosby, 1994, 584-603.

Freccia WF, Peters DD, Lorton L, Bernier WE. An in vitro comparison of nonvital bleaching techniques in the discolored tooth. JEndod 1982;8:70-77.

Ho S, Georig AC. An in vitro comparison of different bleaching agents in the discolored tppth. Endod 1989;15:106-111.

Demarco FF, Garone Netto N. Adverse effects of bleaching in endodontically treated teeth. Rev Odontol (.lniv Sao Paulo 1995;9:51-58. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21.

Harrington GW, Hatkin E. External resorption associated with bleaching of pulpless teeth. Endod 1979;6:344- 348.

Howell RA. The prognosis of bleaced root--filled teeth. [nt Endod 1981;14:22--26.

Friedman S, Rotstein l, Libfeld H, Stabholz A. Heling 1. Incidence of external root resorption and esthetic results in 58 bleached pulpless teeth. Endod Dent Traumatol 1988;4:23-26.

Rotstein ], Friedman S, Mor O, et al. Histological characterization of bleached-induced external root resorption in dogs. Endod 1991;17:436-441.

Heller D, Skriber J, Lin LM. Effect of intracoronal bleaching on external cervical root resorption. Endod 1992;18:145-148.

Titley KC, Torneck CD, Smith DC, Adipfar A. Adhesion of composite resin to bleached, and unbleached bovine enamel. Dent Res 1988;67:1523-28.

Titley KC, Torneck CD, Smith DC, Applebaum NB. Adhesion of glass ionomer cement to bleached and unbleached bovine dentin. Endocl Dent Traumatol

Stokes AH, Hood lAA, Dhariwal D, Patel K. Effect of peroxide bleaches on resin-enamel bonds. Quint [nt 1992;23:769-771.

Toko T, Hisamitsu H. Shear bond strength of composite resin to unbleached and bleached human dentin. Asian Aesthet Dent 1993;1:33-36.

Titley KC, Torneck CD, Ruse ND, Krmec D. Adhesion of composite resin to bleached and unbleached human enamel. Endod 1993;19:112-15.

Titley KC, Torneck CD, Smith DC. The effect of concentrated hydrogen peroxide solutions on surface morphology of human tooth enamel. JEndod 1988;14:69-74.

Titley KC, Torneck CD, Smith DC. Effect of concentrated hydrogen peroxide solution on surface morphology of cut human dentin. Endod Dent Traumatol 1988;4:32-36.

Rotstein [, Toreck Y, Mısgav R. Effect of cementum defects on radicular penetration of 30%H202 during intracoronal bleaching. Endod 1991;17:230-233.

Weiger R, Kuhn A, Löst C. In vitro comparison of various types of Sodium Perborate used for intracoronal bleaching discolored teeth. Endod 1994;20:338-341.

Weiger R, Kuhn A, Lost C. Effect of various types of sodium perborate on the pH of bleaching agents. JEndod 1993;19:239-241.

Öztürk B, Özer F. Effect of NaOCl on bond strengths of bonding agents to pulp chamber lateral walls. Endod 2004;30:362-5.

Van Noort R, Cardew GE, Howard lC, Noroozi S. The effect of local interfacial geometry on the measurement of the tensile bond strength to dentin. JDent Res 1991;70:889-93.

SÜ Dişhek Fok Derg, 2013 Eldeniz, Erdemir, Arı Aydınbelge, Belli 22. 23. 24. 25. 26. 27. 28. 29.

DeMarco F, Turbino ML, Jorge AG, Matson E. Influence of bleaching on dentin bond strength. Am Dent 1998;11:78-82.

Dishman MV, Covey DA, Baughan LW. The effects of peroxide bleaching on composite to enamel bond strength. Dent Mater 1994;10:33-36.

Torneck CD, Titley KC, Smith DC, et al. The influence of time of hydrogen peroxide exposure on the adhesion of composite resin to bleached bovine enamel. Endod 1990;16:123-128.

Walton RE, Torabinejad M. Principles and practice of Endodontics, 2nd edn. Philadelphia: W.B. Saunders Company, 385-400.

Arı H, Üngör M. ln vitro comparison of different types of sodium perborate used for intracoronal bleaching of discoloured teeth. Int Endod 2002;433-436.

McGuckin RS, Thurmond BA, Osovitz S. Enamel shear bond strengths after vital bleaching. Am Dent 1992;5:216-222.

Phillips RW. Skinner's science of dental materials, Philadelphia, WP Saunders, 1982; 165--66.

Draughn RA, Bowen RL, Moffa JP. Composite restorative materials. ln:Reese JA, Valega TM. Restorative dental materials: An overview. London: Federation dentaire internationale, 1985;79. 30. 31. 32.

Retief DH, Mandras RS, Russel CM. Shear bond strength required to prevent microleakage at the dentin/restoration interface. Am Dent 1994;7z43--6.

Shinohara MS, Peris AR, Pimenta LA, Ambrosano GM. Shear bond strength evaluation of composite resin on enamel and dentin after nonvital bleaching. Esthet Restor Dent 2005;17:22--9.

Timpawat S, Nipattamanon C, Kijsamanmith K, Messer HH. Effect of bleaching agents on bonding to pulp chamber dentine. Int Endod 2005;38:211-217.