Halenur Onat ALTAN, Zeynep GÖZTAŞ, Gül TOSUN, Yağmur ŞENER

Adeziv güçlendiricinin kompozitin daimi dişe mikrogerilim bağlanma dayanımına etkisi

Amaç: Bu çalışmanın amacı adeziv güçlendiricinin daimi diş dentinine bağlanma performansını değerlendirmektir. Gereç ve Yöntemler: Bu çalışmada on adet çürüksüz mandibular molar diş kullanıldı. Dişlerin okluzal yüzeyleri tüm mineyi ortadan kalkacak şekilde su soğutması altında elmas separe ile uzaklaştırılarak dentin yüzeyleri açığa çıkarıldı. Dentin yüzeyleri 600-800-1000-1200 grit zımparalarla su altında zımparalandı ve dişler rastgele iki gruba ayrıldı; Grup 1: Total etch (Adper Scotchbond Multi Purpose Plus, 3M ESPE, UK), Grup 2: Total etch + adezyon güçlendirici (Enhance, Reliance, USA). Kompozit rezin restorasyonlar 4-5 mm yükseklikte olacak şekilde yerleştirildi. Su içerisinde (37oC) 24 saat bekletilen dişler 1mm2'lik örnekler elde edilecek şekilde kesitler alındı ve 62 örnek elde edildi. Tüm örneklere mikrogerilim bağlanma testi 1mm/dak hız ile kırılma meydana meydana gelene kadar uygulandı. Kırılma yüzeyleri stereomikroskop altında incelendi. İstatistiksel analiz bağımsız t testi ile değerlendirildi. Bulgular: Grup 1 ve Grup 2’den elde edilen mikrogerilme bağlanma dayanımı değerleri sırasıyla 27,47 MPa ve 27,66 MPa olarak kaydedildi. Gruplar arasında istatistiksel olarak anlamlı farklılık bulunmadı (p > 0,05). Sonuç: Elde edilen sonuçlara göre Enhance adezyon güçlendirici kompozit rezinin daimi dişe bağlanma dayanımını geliştirmemiştir.

Anahtar Kelimeler:

Adeziv güçlendirici, dentin bonding ajan, gerilme dayanımı

Effect of an adhesion booster on microtensile bond strength of composite in permanent teeth

Background: The aim of this study was to determine the bonding performance of an adhesion booster to permanent tooth dentin.Methods: Ten carious free mandibular molars were used. The occlusal surface was ground until all occlusal enamel using diamond saw under water cooling and flat dentin surfaces were obtained. The dentin surfaces hand polished with 600-800-1000-1200 grit silicon carbide abrasive papers under water. The teeth randomly divided into two groups. First group (Group 1): Total etch adhesive system (Adper Scotchbond Multi Purpose Plus, 3M ESPE, UK). Second group (Group 2): Total etch adhesive system + adhesion booster (Enhance, Reliance, USA). Resin composite crown was built up incrementally in three to four layer to a height of 4-5 mm. After 24 hours’ storage in 37oC water, specimens were sectioned with a cross-sectional area of 1 mm2. Sixty –two specimens were tested. All specimens were subjected to microtensile bond test a cross-head speed of 1 mm/min until fracture occured. Surface of fractured specimens was examined with stereomicroscope. The data were analyzed statistically by independent t-test.Results: Micro tensile bond strength of Group 1 and 2 were 27.47 MPa and 27.66 MPa respectively. Statistical analysis showed no differences between groups (p > 0.05).Conclusion: This study revealed that Enhance adhesion booster did not improve the bond strength of composite resin to dentin surface.

Keywords:

Adhesion booster, dentin bonding agents, tensile strength,

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