FATMA DİLŞAD ÖZ, A. Rüya YAZICI, Cansu ATALAY

Farklı üniversal adezivlerin lazerle beyazlatılmış mineye bağlanma dayanıklılıklarının karşılaştırılması

Amaç: Bu in vitro çalışmanın amacı farklı universal adezivlerin kesme-bağlanma dayanıklılıklarının farklı uygulama şekillerinde, lazerle beyazlatma sonrası değerlendirilmesidir.Gereç ve Yöntem: Bu çalışmada yeni çekilmiş 72 kesici sığır dişi kullanılmıştır. Dişler, diyot lazerle (Epic) aktive edilen %38'lik hidrojen peroksit jel beyazlatılmıştır. Diyot lazer 949 nm dalga boyu ve 7 W'lık devamlı modda 30 saniye kullanılmıştır. Beyazlatma sonrası, dişler yapay tükürükte 2 hafta bekletilmiştir. Beyazlatılmış dişler, farklı universal adeziv sistemlere göre rastgele 3 gruba ayrılmıştır (n=24): Single Bond Universal-SU, All-Bond Universal-ABU ve Adhese Universal-ADU. Tüm adezivler 2 modda uygulanmıştır: a- etch&rinse (ER); ve b- self etch (SE). Silindir şekilli kompozit rezin beyazlatma uygulanmış yüzeylere yerleştirilmiş ve ışıkla polimerize edilmiştir. Örnekler 24 saat distile suda bekletildikten sonra kesme bağlanma dayanıklılığı testine maruz bırakılmıştır. Veriler 2 yönlü ANOVA ve Bonferroni testi kullanılarak analiz edilmiştir(α = 0.05).Bulgular: Self-etch modda en yüksek kesme bağlanma dayanıklılığı değerleri Single Bond Universal grubunda görülmüştür (p<0.05). All-Bond Universal ve Adhese Universal gruplarında istatistiksel olarak anlamlı bir fark görülmemiştir. Etch&rinse uygulama modunda Adhese Universal, anlamlı bir şekilde Single Bond Universal ve All-Bond Universal'den daha düşük kesme bağlanma dayanıklılığı değerleri göstermiştir (p<0.05). Tüm gruplarda etch&rinse uygulama modu anlamlı bir şekilde daha yüksek kesme bağlanma dayanıklılığı değerleri göstermiştir. Sonuçlar: Universal adezivlerin bağlanma dayanıklılıkları, diyot lazerle beyazlatma sonrası etch&rinse uygulama şeklinde daha yüksek değerler göstermiştir.Anahtar Kelimeler: Diyot lazer, universal adezivler, beyazlatma

Anahtar Kelimeler:

Diyot lazer, universal adezivler, beyazlatma

Comparison of different universal adhesives’ bond strength to laser-assisted bleached enamel

Objective: The aim of this in vitro study was to evaluate the bond strength of several universal adhesives used in different application modes to laser-assisted bleached enamel.Materials and Methods: Freshly extracted 72 sound bovine incisors were used for the study. The teeth were bleached with 38% of hydrogen peroxide gel that was activated with a diode laser (Epic). The diode laser with a 949nm wavelength was used at 7 W in continuous mode for 30 s. After bleaching procedure, the teeth were kept in artificial saliva for 2 weeks. The bleached teeth were randomly assigned into three groups according to different universal adhesive systems (n=24); Single Bond Universal-SU, All-Bond Universal-ABU and Adhese Universal-ADU. All adhesives were applied in two modes: a- etch&rinse (ER); and b- self etch (SE). A cylinder-shaped resin composite was placed on treated surfaces and cured. After storage of specimen in distilled water for 24 h, they were subjected to shear bond strength test. Data were analyzed using two-way ANOVA followed by Bonferroni test (α = 0.05) Results: The highest mean shear bond strength values were obtained in Single Bond Universal group used in self-etch mode (p<0.05). No difference was observed between All-Bond Universal and Adhese Universal. In etch&rinse application mode, Adhese Universal resulted in significantly lower bond strength values (p<0.05) than Single Bond Universal and All-Bond Universal. For all groups, etch&rinse application mode caused significantly higher bond strength values. Conclusion: The bonding performance of tested universal adhesives was enhanced with the etch&rinse mode application to diode laser- assisted bleached enamel. Key Words: Diode laser, universal adhesives, bleaching

Keywords:

Diode laser, universal adhesives, bleaching,

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