Bulk Fill Composites Have Similar Performance to Conventional Dental Composites

Scientific paper - Original scientific paper

• Author: Håvard J. Haugen
• Author: Danijela Marović
• Author: Matej Par
• Author: Minh Khai Le Thieu
• Author: Janne E. Reseland
• Author: Gaute Floer Johnsen
• Author's institution: University of Zagreb; School of Dental Medicine
• Scientific / art field, discipline and subdiscipline: BIOMEDICINE AND HEALTHCARE; Dental Medicine

Abstract (english)

The aim of the study was to perform comprehensive characterization of two commonly used bulk fill composite materials (SDR Flow (SDR) and Filtek™ Bulk Fill Flowable Restorative (FBF) and one conventional composite material (Tetric EvoCeram; TEC). Eleven parameters were examined: flexural strength (FS), flexural modulus (FM), degree of conversion, depth of cure, polymerisation shrinkage (PS), filler particle morphology, filler mass fraction, Vickers hardness, surface roughness following simulated toothbrush abrasion, monomer elution, and cytotoxic reaction of human gingival fibroblasts, osteoblasts, and cancer cells. The degree of conversion and depth of cure were the highest for SDR, followed by FBF and TEC, but there was no difference in PS between them. FS was higher for bulk fill materials, while their FM and hardness were lower than those of TEC. Surface roughness decreased in the order TEC→SDR→FBF. Bisphenol A-glycidyl methacrylate (BisGMA) and urethane dimethacrylate were found in TEC and FBF eluates, while SDR released BisGMA and triethylene glycol dimethacrylate. Conditioned media accumulated for 24 h from FBF and TEC were cytotoxic to primary human osteoblasts. Compared to the conventional composite, the tested bulk fill materials performed equally or better in most of the tests, except for their hardness, elastic modulus, and biocompatibility with osteoblasts.

• Keywords (english): bulk fill; composite resin; restorative materials
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: International Journal of Molecular Sciences
• Numbering: vol. 21, no. 14, 5136
• e-ISSN: 1422-0067
• DOI: https://doi.org/10.3390/ijms21145136
• URN:NBN: urn:nbn:hr:127:101562
• Publication: 2020-07-20
• Document URL: https://www.mdpi.com/1422-0067/21/14/5136
• Type of resource: Text
• Access conditions: Open access
• Created on: 2022-11-10 12:59:44