Farklı Döner Alet Sistemleri ve Bir Rezin İçerikli Kök Kanal Dolgusunun Endodontik Tedavi Görmüş Köklerin Kırılmaya Direncine Etkileri

Yıl 2014, Cilt: 3 Sayı: 1, 1 - 5, 01.04.2014

Alper Kuştarci Kürşat Er Şeyda Hergüner Siso Neslihan Simsek Fuat Ahmetoglu Tamer Taşdemir

Öz

Bu çalışmanın amacı, üç farklı döner NiTi kanal aleti K3, RaCe, ProTaper ve bir rezin içerikli kök kanal patının Epiphany/Resilon endodontik tedavi gömüş köklerin kırılmaya direncine etkilerinin karşılaştırılmasıdır. Doksan sekiz adet çekilmiş insan alt çene premolar diş kökleri ratgele olarak 3 deney n=28 ve 1 kontrol n=14 grubuna ayrıldı. Dişlerin kronları mine-sement sınırından itibaren kesilerek uzaklaştırıldı. Deney gruplarında kök kanalları K3 K3 Grubunda , RaCe RaCe Grubunda ve ProTaper ProTaper Grubunda kök kanal aletleri ile prepare edildi. Sonra her deney grubundan 14 dişin kök kanalı Epiphany/Resilon kök kanal dolgusu ile lateral kondensasyon yöntemi kullanılarak dolduruldu. Diğer dişlerin kök kanalları doldurulmadı. Kontol grubundaki n=14 dişlere hiç bir işlem uygulanmadı. Örnekler içerisi akrilik rezin dolu bakır anolara yerleştirildikten sonra, universal test cihazı ile kökler kırılana kadar vertikal kuvvet uygulandı. Elde edilen veriler tek yönlü varyans analizi ve Bonferroni düzeltmeli PostHoc testleri kullanılarak analiz edildi. Kontrol grubunun kırılma direnci diğer tüm gruplara göre daha yüksek bulundu p0.05 . Döner kök kanal aletleri dişleri önemli derecede zayıflatmaktadır, bununla birlikte kanalları Epiphany/Resilon ile doldurmak bu direnç kaybını kısmen tolere etmektedir

Anahtar Kelimeler

Diş Kırıkları, Kök Kanal Preparasyonu, Kök Kanal Dolgusu

Effects of Different Rotary Systems and a Resin-based Root Canal Filling on Fracture Resistance of Endodontically Treated Roots

Öz

The aim of this study was to compare the effects of three different rotary NiTi instruments K3, RaCe, ProTaper and a resin-based root canal filling Epiphany/Resilon on fracture resistance of endodontically treated roots. Ninety eight freshly extracted human mandibular premolar teeth roots were divided randomly into three experimental groups n=28 and a control group n=14 . Teeth were sectioned at the cemento-enamel junction with a multipurpose bur. Root canals were instrumented with either K3 K3 Group , RaCe RaCe Group , or ProTaper ProTaper Group rotary instruments in experimental groups. Fourteen roots from each group were then filled with lateral condensation technique using Epiphany/Resilon root canal filling. Other ones were left unfilled. Controls n=14, intact tooth received no treatment. Specimens were then mounted in copper rings, were filled with a self-curing polymethylmethacrylate resin, and the force required to cause vertical root fracture was measured using a universal testing device. Fracture force of the roots was recorded and the results in the various groups were compared. Data was analyzed statistically using one way variance analysis and Post Hoc with the Bonferroni correction tests. Control group was significantly stronger than all groups with instrumented and filled roots p

Anahtar Kelimeler

Tooth Fractures, Root Canal Preparation, Root Canal Filling.

Kaynakça

• Cobankara FK, Ungor M, Belli S. The effect of two different root canal sealers and smear layer on resistance to root fracture. J Endod 2002; 28: 606-9.
• Hergüner Siso Ş, Er K, Hürmüzlü F, Kuştarcı A, Akpınar KE. Fracture resistance of root-filled maxillary premolar teeth restored with current dentin bonding adhesives. Acta Stomatol Croat 2008; 42: 30-40.
• Zandbiglari T, Davids H, Schafer E. Influence of instrument taper on the resistance to fracture of endodontically treated roots. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2006; 101: 126-31.
• Schafer E, Zandbiglari T, Schafer J. Influence of resin- based adhesive root canal fillings on the resistance to fracture of endodontically treated roots: an in vitro preliminary study. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2007; 103: 274-9.
• Meister F, Lommel TJ, Gerstein H. Diagnosis and possible causes of vertical root fractures. Oral Surg Oral Med Oral Pathol 1980; 49: 243-53.
• Teixeira FB, Teixeira ECN, Thompson JY, Trope M. Fracture resistance of roots endodontically treated with a new resin filling material. JADA 2004; 135: 646-52.
• Sagsen B, Er O, Kahraman Y, Akdogan G. Resistance to fracture of roots filled with three different techniques. Int Endod J 2007; 40: 31-5.
• Kıvanç BH, Alacam T, Ulusoy OI, Genç O, Gorgul G. Fracture resistance of thin-walled roots restored with different post systems. Int Endod J 2009; 42: 997-1003.
• Hammad M, Qualtrough A, Silikas N. Effect of new obturating materials on vertical root fracture resistance of endodontically treated teeth. J Endod 2007; 33: 732- 6.
• Ribeiro FC, Souza-Gabriel AE, Marchesan MA, Alfredo E, Silva-Sousa YT, Sousa-Neto MD. Influence of different endodontic filling materials on root fracture susceptibility. J Dent 2008; 36: 69-73.
• Doyon GE, Dumsha T, von Fraunhofer JA. Fracture resistance of human root dentin exposed to intracanal calcium hydroxide. J Endod 2005; 31: 895-7.
• Bergmans L, Van Cleynenbreugel J, Wevers M, Lambrechts P. Mechanical root canal preparation with NiTi rotary instruments: rationale, performance and safety. Status report for the American Journal of Dentistry. Am J Dent 2001; 14: 324–33.
• Gutmann JL, Witherspoon DE. Obturation of the cleaned and shaped root canal system. In: Cohen S, Burns RC eds Pathways of the Pulp, 8 th edn. St. Louis, USA: CV Mosby; 2002. p. 293-364.
• Grossman LI. Endodontic Practice, 10 th edn. Philadelphia, USA: Lea and Febiger; 1982. p. 279.
• Teixeira FB, Teixeira EC, Thompson J, Leinfelder KF, Trope M. Dentinal bonding reaches the root canal system. J Esth Rest Dent 2004; 16: 348–54.
• Yoshimine Y, Ono M, Akamine A. The shaping effects of three nickel-titanium rotary instruments in simulated S-shaped canals. J Endod 2005; 31: 373-5.
• Ricks-Williamson LJ, Fotos PG, Goel VK, Spivey JD, Rivera EM, Khera SC. A three-dimensional finite- element stress analysis of an endodontically prepared maxillary incisor. J Endod 1995; 21: 362-7.
• Wilcox LR, Roskelley C, Sutton T. The relationship of root canal enlargement to finger-spreader induced vertical root fracture. J Endod 1997; 23: 533-4.
• Rundquist BD, Versluis A. How does canal taper affect root stresses?. Int Endod J 2006; 39: 226-37.
• Sathorn C, Palamara JEA, Palamara D, Messer HH. Effect of root canal size and external root surface morphology on fracture susceptibility and pattern: a finite element analysis. J Endod 2005; 31: 288-92.
• Pitts DL, Matheny HE, Nicholls JI. An in vitro study of spreader loads required to cause vertical root fracture during lateral condensation. J Endod 1983; 9: 544-50.
• Lam PP, Palamara JE, Messer HH. Fracture strength of tooth roots following canal preparation by hand and rotary instrumentation. J Endod 2005; 31: 529-32.
• Saleh IM, Ruyter IE, Haapasalo MP, Qrstavik D. Adhesion of endodontic sealers: scanning electron microscopy and energy dispersive spectroscopy. J Endod 2003; 29: 595-601.
• Ørstavik D, Eriksen HM, Beyer-Olsen EM. Adhesive properties and leakage of root canal sealers in vitro. Int Endod J 1983: 16: 59-63.
• Stuart CH, Schwartz SA, Beeson TJ. Reinforcement of immature roots with a new resin filling material. J Endod 2006; 32: 350-3.
• Williams C, Loushine RJ, Weller RN, Pashley DH, Tay FR. A comparison of cohesive strength and stiffness of Resilon and gutta-percha. J Endod 2006; 32: 553–5.
• Eakle WS. Fracture resistance of teeth restored with
• class II bonded composite resin. J Dent Res 1986; 65: 149-53. 28. Marshall GW. Dentin: microstructure and characterization. Quintessence Int 1993; 24: 606-17.
• Wu MK, van der Sluis LWM, Wesselink PR. Comparison of mandibular premolars and canines with respect to their resistance to vertical root fracture. J Dent 2004; 32: 265-8 İnönü Üniversitesi Diş Hekimliği Fakültesi