Effect of layer thickness on the elution of monomers from two high viscosity bulk-fill composites: A high-performance liquid chromatography analysis :[PAUTHORS], Journal of Conservative Dentistry (JCD)

ORIGINAL ARTICLE
Year : 2020 | Volume : 23 | Issue : 5 | Page : 497--504

Effect of layer thickness on the elution of monomers from two high viscosity bulk-fill composites: A high-performance liquid chromatography analysis

Anciya Mohamed Nazar, Liza George, Josey Mathew
Department of Conservative Dentistry and Endodontics, Annoor Dental College, Ernakulam, Kerala, India

Correspondence Address:
Dr. Anciya Mohamed Nazar
Department of Conservative Dentistry and Endodontics, Annoor Dental College, Perumattom, Muvattupuzha, Ernakulam - 686 673, Kerala
India

Aim: The aim is to evaluate the effect of different layer thickness on the amount of elution of monomers from two high viscosity bulk-fill composites after 24 h and 1 month storage in ethanol using high-performance liquid chromatography (HPLC) analysis. Materials and Methods: Forty-eight samples prepared from two high viscosity bulk-fill composite resins; Tetric EvoCeram Bulk Fill and x-tra fil were divided into three groups (n = 8) based on their layer thickness, i.e., Group 1 (2 mm), Group 2 (4 mm), and Group 3 (6 mm) and were then subdivided based on their storage period. The analysis of the eluates was performed using HPLC unit. Statistical analysis was performed using One-way ANOVA, independent sample t-test, and paired “t” test at a significance level of 0.05 (P < 0.05). Results: Increase in layer thickness resulted in increased amount of bisphenol A-glycidyl methacrylate (Bis-GMA) and urethane dimethacrylate (UDMA) elution for both composites, i.e., Group 3 > Group 2 > Group 1 and there was statistically significant difference among all the groups. Tetric EvoCeram Bulk Fill showed a statistically significant increase in amount of Bis-GMA and UDMA elution for all groups compared to x-tra fil. Furthermore, increase in storage period resulted in statistically significant increase in amount of Bis-GMA and UDMA elution for both composites, i.e., Group 1B > Group 1A, Group 2B > Group 2A, and Group 3B > Group 3A. The mean value of UDMA elution was higher when compared to that of Bis-GMA elution for both composites and there was statistically significant difference for all groups. Conclusion: Within the limitations of this in vitro study, it was concluded that increase in layer thickness resulted in increased amount of Bis-GMA and UDMA elution for both Tetric EvoCeram Bulk Fill and x-tra fil.

How to cite this article:
Nazar AM, George L, Mathew J. Effect of layer thickness on the elution of monomers from two high viscosity bulk-fill composites: A high-performance liquid chromatography analysis.J Conserv Dent 2020;23:497-504

How to cite this URL:
Nazar AM, George L, Mathew J. Effect of layer thickness on the elution of monomers from two high viscosity bulk-fill composites: A high-performance liquid chromatography analysis. J Conserv Dent [serial online] 2020 [cited 2023 Sep 29 ];23:497-504
Available from: https://www.jcd.org.in/article.asp?issn=0972-0707;year=2020;volume=23;issue=5;spage=497;epage=504;aulast=Nazar;type=0