Purpose: To evaluate microleakage of a bioactive restorative material with and without bonding agent, and a conventional nanocomposite. Method: Forty-eight Class V preparations were prepared on the buccal and lingual aspects of 24 human third molar teeth. Preps were restored with Activa with a bonding agent, Activa with no bonding agent, and Filtek Supreme Ultra with a bonding agent. Thirty-six specimens were thermocycled, while the remaining 12 non-thermocycled specimens served as controls. All groups underwent a 21 day cycle of acidic pH challenges followed by immersion in a saliva substitute. Specimens were immersed in methylene blue, sectioned, and evaluated under light microscopy. Microleakage was quantitatively assessed by measuring methylene blue penetration at the tooth-restoration interface. Results: Mean microleakage: Bonded Activa 0.40±0.12 mm, non-bonded Activa 0.04±0.02 mm, bonded Filtek Supreme Ultra 0.44±0.12 mm, and bonded Activa (non-thermocycled control) 0.49±0.07 mm. One-way ANOVA and Fisher LSD Post Hoc testing demonstrated significantly less microleakage for Activa restorations without bonding agent (P<0.001). Conclusions: Activa without a bonding agent had less microleakage when compared to Activa and Filtek Supreme with bonding agents (P<0.001).
為了持續優化網站功能與使用者體驗,本網站將Cookies分析技術用於網站營運、分析和個人化服務之目的。
若您繼續瀏覽本網站,即表示您同意本網站使用Cookies。