GuttaSolv Kullanılarak Retreatment Yapılan Dişlere Uygulanan Fiber Postların Bağlanma Dayanımlarının Pull-out Testi ile Değerlendirilmesi

Öz

Amaç: Bu çalışmada, retreatment sırasında GuttaSolv kullanımının, iki farklı fiber post sisteminin (D.T. Light-Post/ Duolink dual-cure rezin siman ve RelyX post/ RelyX Unicem self-adheziv rezin siman) bağlanma dayanımlarına etkisini pull-out testi ile analiz edilmesi amaçlanmıştır. Gereç ve Yöntemler: Çalışmaya 40 adet çekilmiş insan alt çene küçük azı dişi dahil edildi. Kök kanallarının şekillendirilmesi ve doldurulmasının ardından, örnekler retreatment protokolüne göre rastgele dört gruba (n=10) ayrıldı. 1. ve 3. gruplarda dolgu materyali sadece ProTaper Reteratment sistemi kullanılarak çıkarılırken, 2. ve 4. gruplarda çıkarma işlemi sırasında ek olarak GuttaSolv çözücüsü uygulandı. Daha sonra kanallar yeniden dolduruldu. 1. ve 2. gruplarda RelyX U200 Automix self-adeziv rezin siman sistemi kullanılarak RelyX fiber postlar yerleştirildi. 3. ve 4. gruplarda ise D.T. Light fiber postlar All-Bond Universal ve Duo-Link rezin siman ile simante edildi. Kökler, üniversal test makinesine bağlı bir çekme test cihazına monte edildi. Postun kökten ayrıldığı anda kaydedilen maksimum kuvvet, bağ kopma değeri olarak tanımlandı. Bulgular: Çekme testi, gruplar arasında istatistiksel olarak anlamlı farklılıklar olduğunu gösterdi (p=0.001, p<0.01). Grup 1, Grup 2 ve 4'e kıyasla anlamlı derecede daha yüksek çekme kuvveti sergiledi (p<0.001). Sonuç: Retreatment işlemlerinde çözücü kullanımı, RelyX postlarının yapışma performansını olumsuz etkilemiştir. Bununla birlikte, D.T. Light postlarının yapışma gücü çözücü kullanımından önemli ölçüde etkilenmemiştir.

Anahtar Kelimeler

• Çözücüler
• Endodonti
• Yeniden Tedavi

Pull-out Retentive Strength of Different Fiber Post Systems After Retreatment with Guttasolv

Öz

Objectives: This study evaluated whether the use of the gutta-percha solvent Guttasolv during retreatment procedures influences the retention of two fiber post systems: D.T. Light-Post used with Duolink dual-cured luting resin cement and RelyX posts used with RelyX Unicem self-adhesive resin cement. Materials and Methods: Forty extracted human mandibular premolars were included in the study. After the preparation and obturation of the root canals, the specimens were randomly assigned to four groups (n=10) according to the retreatment protocol. In Groups 1 and 3, the filling material was removed using only the ProTaper Retreatment system, whereas in Groups 2 and 4 the solvent GuttaSolv was additionally applied during the removal procedure. Afterward, the canals were re-obturated. RelyX fiber posts were placed in Groups 1 and 2 using the RelyX U200 Automix self-adhesive resin cement system. In Groups 3 and 4, D.T. Light fiber posts were cemented with All-Bond Universal and Duo-Link resin cement. The roots were mounted in a pull-out testing device connected to a universal testing machine. The maximum force recorded at the moment the post was dislodged from the root was defined as the bond failure value. Results: The pull-out test demonstrated statistically significant differences among the groups (p=0.001, p<0.01). Group 1 exhibited significantly greater pull-out strength compared with Groups 2 and 4 (p<0.001). Conclusion: The use of solvent during retreatment procedures adversely affected the bonding performance of RelyX posts. However, the bond strength of D.T. Light posts was not significantly influenced by solvent use.

Anahtar Kelimeler

• Retreatment
• Endodontics
• Solvents

Kaynakça

1. Cohen S, Burns RC, Walton R, Torabinejad M. Pathways of the pulp. 10th ed. St. Louis: Mosby/ Elsevier; 1998.
2. Zehnder M, Paque F. Disinfection of the root canal system during root canal retreatment. Endod Topics. 2011;19(1):58-73.
3. Torabinejad M, Corr R, Handysides R, Shabahang S. Outcomes of nonsurgical retreatment and endodontic surgery: a systematic review. J Endod. 2009;35(7): 930-7.
4. Nguyen TN. Obturation of the root canal system. In: Cohen S, Burns RC, editors. Pathways of the pulp. 6th ed. St. Louis: Mosby; 1994. p. 219-71.
5. Duncan HF, Chong BF. Removal of root filling materials. Endod Topics. 2011;19(1):33-57.
6. Kosti E, Lambrianidis T, Economides N, Neofitou C. Ex vivo study of the efficacy of H-files and rotary instruments to remove guttapercha and four types of sealer. Int Endod J. 2006;39(1):48-54.
7. Schirrmeister JF, Wrbas KT, Meyer KM, Altenburger MJ, Hellwig E. Efficacy of different rotary instruments for gutta-percha removal in root canal retreatment. J Endod. 2006;32(5):469- 72.
8. Ladley RW, Campbell AD, Hicks ML, Li SH. Effectiveness of halothane used with ultrasonic or hand instrumentation to remove gutta-percha from the root canal. J Endod. 1991;17(5):221–4.

9. Farge P, Nahas P, Bonin P. In vitro study of a Nd:YAP laser in endodontic retreatment. J Endod. 1998;24(5):359-63.
10. Anjo T, Ebihara A, Takeda A, Takashina M, Sunakawa M, Suda H. Removal of two types of root canal filling material using pulsed Nd:YAG laser irradiation. Photomed Laser Surg. 2004;22(6):470–6.
11. Masiero AV, Barletta FB. Effectiveness of different techniques for removing gutta-percha during retreatment. Int Endod J. 2005;38(1):2-7.
12. Zuolo AS, Mello Jr JE, Cunha RS, Zuolo ML, Bueno CE. Efficacy of reciprocating and rotary techniques for removing filling material during root canal treatment. Int Endod J. 2013;46(10):947-53.
13. Scelza MF, Coil JM, Maciel AC, Oliveira LR, Scelza P. Comparative SEM evaluation of three solvents used in endodontic retreatment: an ex vivo study. J Appl Oral Sci. 2008;16(1):24-9.
14. Martos J, Bassotto AP, Gonzalez-Rodriguez MP, Ferrer-Luque CM. Dissolving efficacy of eucalyptus and orange oil, xylol and chloroform solvents on different root canal sealers. Int Endod J. 2011;44(11):1024-8.
15. Sağlam BC, Koçak MM, Türker SA, Koçak S. Efficacy of different solvents in removing gutta-percha from curved root canals: a microcomputed tomography study. Aust Endod J. 2014;40(2):76-80.
16. Er O, Uzun O, Ustun Y, Canakcı BC, Yalpı F. Effect of solvents on the accuracy of the Mini Root ZX apex locator. Int Endod J. 2013;46(11):1088-95.
17. Çanakçi BC, Er O, Dincer A. Do the sealer solvents used affect apically extruded debris in retreatment. J Endod. 2015; 41(9):1507-9.
18. Qing H, Zhu ZM, Chao YL, Zhang WQ. In vitro evaluation of the fracture resistance of anterior endodontically treated teeth restored with glass fiber and zircon posts. J Prosthet Dent. 2007;97(2):93-8.
19. Bolay S, Ozturk E, Tuncel B, Ertan A. Fracture resistance of endodontically treated teeth restored with or without post systems. J Dent Sci. 2012;7(2):148-53.
20. 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 Prosthodont. 2001;10(1), 26-36.
21. Baba NZ, Golden G, Goodacre CJ. Nonmetallic prefabricated dowels: a review of compositions, properties, laboratory, and clinical test results. J Prosthodont. 2009;18(6),527-36.
22. Ferrari M, Vichi A, Garcia Godoy F. Clinical evaluation of fiber-reinforced epoxy resin posts and cast posts and cores. Am J Dent. 2000;13(Spec No),15B-18B.
23. Torbjörner A., Karlsson S., Syverud M., Hensten- Pettersen, A. Carbon fiber reinforced root canal posts Mechanical and cytotoxic properties. Eur J Oral Sci. 1996;104(5-6):605-11.
24. Freedman GA. Esthetic post-and-core treatment. Dent Clin North Am. 2001;45(1):103-16.
25. Newman MP, Yaman P, Dennison J, Rafter M, Billy E. Fracture resistance of endodontically treated teeth restored with composite posts. J Prosthet Dent. 2003;89(4):360-7.
26. Ayna B, Celenk S, Atakul F, Uysal E. Threeyear clinical evaluation of endodontically treated anterior teeth restored with a polyethylene fibre-reinforced composite. Aust Dental J. 2009;54(2):36-40.
27. Naumann M, Koelpin M, Beuer F, Meyer- Lueckel H. 10-year survival evaluation for glassfiber– supported postendodontic restoration: a prospective observational clinical study. J Endod. 2012;38(4):432-5.
28. Gerth HU, Dammaschke T, Züchner H, Schafer E. Chemical analysis and bonding reaction of RelyX Unicem and Bifix composites--a comparative study. Dent Mater. 2006;22(10):934–41.
29. Al-Assaf K., Chakmakchi M., Palaghias G., Karanika-Kouma A., Eliades G. Interfacial characteristics of adhesive luting resins and composites with dentine. Dent. Mater. 2007;23(7):829-39.
30. Arslan H, Akcay M, Saygılı G. et al. Bond strength of self-adhesive resin cement to root dentin. Comparison of photon-initiated photoacoustic streaming technique with needle and ultrasonic irrigation. Acta Odontol Scand. 2015;73(5):348-52.
31. Naumann M, Blankenstein F, Kießling S, Dietrich T. Risk factors for failure of glass fiber-reinforced composite post restorations: a prospective observational clinical study. Eur J Oral Sci.2005;113(6),:519-24.
32. Seefeld F, Wenz HJ, Ludwig K, Kern M. Resistance to fracture and structural characteristics of different fiber reinforced post systems. Dent Mater. 2007;23(3):265-71.
33. Bitter K, Kielbassa AM. Post-endodontic restorations with adhesively luted fiberreinforced composite post systems: a review. Am J Dent. 2007;20(6):353-60.
34. Bitter K, Meyer-Lueckel H, Priehn K, Kanjuparambil J, Neumann K, Kielbassa AM. Effects of luting agent and thermocycling on bond strengths to root canal dentine. Int Endod J. 2006;39(10):809-18.
35. Piwowarczyk A, Lauer HC, Sorensen JA. In vitro shear bond strength of cementing agents to fixed prosthodontic restorative materials. J Prosthet Dent. 2004;92(3):265-73.
36. Hikita K, Van Meerbeek B, De Munck J, Ikeda T, Van Landuyt K, Maida T. Bonding effectiveness of adhesive luting agents to enamel and dentin. Dent Mater. 2007;23(1), 71-80.
37. Moszner N, Salz U, Zimmermann J. Chemical aspects of self-etching enamel–dentin adhesives: a systematic review. Dent Mater. 2005;21(10):895-910.
38. Erdemir A, Eldeniz AU, Belli S, Pashley DH. Effect of solvents on bonding to root canal dentin. J Endod. 2004;30(8):589-92.
39. Guedes OA, Chaves GS, Alencar AH. et al. Effect of gutta-percha solvents on fiberglass post bond strength to root canal dentin. J Oral Sci, 2014;56(2):105-12.