Physical-chemical properties of dental composites and adhesives containing silane-modified SBA-15

作者：Martim Gedalias Custdio^*; Kupfer Vicente Lira; Moises Murilo Pereira; dos Santos Andressa; Maciel Buzzetti Paulo Henrique; Rinaldi Andrelson Wellington; Rubira Adley Forti; Girotto Emerson Marcelo

来源：Journal of the Mechanical Behavior of Biomedical Materials, 2018, 80: 277-284.

DOI：10.1016/j.jmbbm.2018.02.009

• SBA-15
• 3-methacryloxypropyltrimethoxysilane
• Composite resin
• Adhesives
• Physicochemical phenomena

The aim of this study was to synthesize and characterize mesoporous materials SBA-15 and SBA-15 modified with 3-(methacryloxy)-propyl-trimethoxysilane (MPS) to be used as inorganic filler in restorative dental composites and adhesives, and evaluate the main physical-chemical properties of the resulting material. The SBA-15 and SBA-15/MPS were characterized by FTIR, BET and X-Ray and combined with TEGDMA, bis-GMA and commercial spherical silica to produce dental composites. Afterwards, the mesoporous materials were combined with TEGDMA, bis-GMA and HEMA to make adhesives. To compare the results, composites and adhesives containing only commercial spherical silica were investigated. Some physical-chemical properties such as degree of conversion (DC), flexural strength (FS) and modulus (FM), water sorption and solubility (W-sp and W-s1), specific area (BET), and the leachable components were evaluated. The SBA-15/MPS can be used to prepare dental restorative materials, with some foreseeable advantages compared with pure SBA-15 dental materials and with improved properties compared with commercial spherical silica dental materials. An important improvement was that the dental materials based on modified SBA-15 presented a reduction of approximately 60% in leaching of unreacted monomers extracted by solvent compared to the control group.

• 出版日期2018-4