The effect of ozone application on shear bond strengths of resin based root canal sealers to radicular dentin

Rezin esasl kök kanal patlarnn kök dentinine balanma dayanmna ozon uygulamann etkisi

Abstract

The effect of ozone application on shear bond strengths of resin based root canal sealers to radicular dentin Background: To investigate the effect of ozone treatment on shear bond strength of resin based endodontic sealers to root dentin. Methods: Thirty six extracted premolars were sectioned buccolingually and 72 root halves were randomly divided into six groups (n = 12). The cut surfaces were ground and pretreated with 5% NaOCl and 17% EDTA solutions for 5 minutes followed by 5 minutes of distilled water irrigation. Three root canal sealers (AH Plus, Real Seal, Hybrid Root SEAL) were used. All specimens were then fixed with cold acrylic resin to a plastic cylindrical ring. The three groups were allocated for ozone treatment. 3 mm high buildups with a constant surface area of 3.14 mm2 were created using the sealers and allowed to set (37ºC, 100% humid, 72 hrs). The samples were tested to failure for shear bond strength (1 mm/minute). The data was calculated (MPa) and analyzed Two-way ANOVA, Tukey HSD and ndependent-t tests, sig. 0.05). Results: There were statistically significant differences in the shear bond strengths values of the tested groups related to the tested root canal sealers (P < 0.05). AH Plus showed statistically higher bond strength than Real Seal and Hybrid Root SEAL (P < 0.05). Ozone treatment had no effect shear bond strength (p>0.05). Conclusions: Results of this study suggested that ozone treatment did not alter the bond strengths of resin based sealers to dentin. AH Plus showed better adhesive performance than the other sealers both on ozon treated and non-treated root dentin.

Özet

Amaç: Rezin esasl kök kanal patlarnn kök dentinine balanma dayanmna ozon uygulamann etkisini incelemektir. Gereç ve Yöntem: Otuz alt adet çekilmi kanin di bukkolingual olarak kesildi. Yetmi iki adet kök yars elde edildikten sonra rastgele 6 gruba ayrld. Kök yüzeyleri srasyla 5’er dakika 5% NaOCl, 17% EDTA solüsyonu ve distile su ile ykand. Üç kök kanal pat (AH Plus, Real Seal, Hybrid Root SEAL) kullanld. Tüm kökler plastik silindirik bir bloa souk akril yardmyla horizontal olarak gömüldü. Üç gruba ozon tedavisi uyguland. Kullanlan patlar, 3 mm yüksekliindeki polietilen tüpe yerle tirilerek, kökün üçte birlik koronal ksmnda meydana getirilen sabit 3,14 mm2’lik bir yüzey alanna koyuldu ve sertlemesi için 37ºC, 100% nemli ortamda 72 saat bekletildi. Hz dakikada 1 mm/dak olacak ekilde makaslama kuvveti uygulanarak örnekler krlncaya kadar yük uyguland. Elde edilen sonuçlarn istatistiksel analizi Two-way ANOVA, Tukey HSD ve bamsz t testleri ile de- erlendirildi. Bulgular: Test edilen gruplarn makaslama balanma dayanm deerleri arasnda istatistiksel olarak önemli derecede fark bulundu (P 0.05). Sonuç: Bu çalmann sonuçlar gösteriyor ki, rezin esasl patlarn kök dentinine balanma dayanm deerini uygulanan ozon tedavisi dei- tirmemitir. AH Plus, kök dentinine ozon tedavili ve tedavisiz dier patlardan daha iyi adeziv performans göstermitir.