Comparing occlusal and cervical microleakage in class V restorations using two different nanohybrid resin composite with different insertion techniques. (2022)

• Record Type: Journal Article
• Authors: Algailani, Ubaydah; Alshaikhli, Lubna O.; Al‑Zahawi, Abdulsalam; Alzbeede, Ahmed; Salomy Monica Diyya, A; Osman, Osman
• Is Part Of: Materials today. Volume 60:Part 3(2022)
• Page Start: 1736
• Page End: 1740
• Publication Date: 2022
• Subjects: CEJ Cementoenamel Junction -- SHLT Split Horizontal Layering Technique -- VL Vertical Layering -- CM Cervical Margin -- OM Occlusal Margin -- S-PRG Surface Pre-Reacted Glass Ionomer -- SRS Steric Repulsion Structured -- C-factor Configuration factor; Dental Leakage -- Class V Restoration -- Nanohybrid composite; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2021.12.309
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: The study evaluates and compares occlusal and cervical microleakage in class V cavities restored with various techniques using two different nanohybrid composites. Sixty standardized box-shaped class V cavities preparations of 2 × 2 × 3 mm (depth, length, width) were performed on 30 teeth; each cavity has occlusal and cervical margin to be evaluated. Twelve groups were designed to be filled with a specific material (nanohybrid Filtek™ Z250 XT composite or Beautifil™ II LS Giomer) and technique (Bulk, Vertical, or Split horizontal layering technique SHLT) to compare the occlusal versus cervical microleakage. The samples were thermocycled 500 times (5 °C ± 2 °C & 55 °C ± 2 °C with 30 s dwell time) before being submerged in a 2 % buffered methylene blue solution for 24 h at 37 °C. The restorations were sectioned longitudinally in a buccolingual direction through the centers of the restoration. Then evaluated for microleakage on both occlusal and cervical margin using a stereomicroscope at x10 magnification and scored as 0, 1, 2, and 3. Resultant cervical and occlusal microleakage scores were statistically analyzed using one-way ANOVA followed by Tukey post hoc considering (p < 0.05). SHLT reveals a reduction in microleakage on both occlusal and cervical margins, and the Giomer material showed less microleakage on both margins SHLT and Bulk technique. The split horizontal layering technique showed less marginal microleakage on occlusal and cervical margins despite the material used.