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

Gedalias Custódio Martim; Vicente Lira Kupfer; Murilo Pereira Moisés; Andressa Dos Santos; Paulo Henrique Maciel Buzzetti; Andrelson Wellington Rinaldi; Adley Forti Rubira; Emerson Marcelo Girotto

doi:10.1016/j.jmbbm.2018.02.009

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

J Mech Behav Biomed Mater. 2018 Apr:80:277-284. doi: 10.1016/j.jmbbm.2018.02.009. Epub 2018 Feb 9.

Authors

Gedalias Custódio Martim¹, Vicente Lira Kupfer², Murilo Pereira Moisés³, Andressa Dos Santos², Paulo Henrique Maciel Buzzetti², Andrelson Wellington Rinaldi², Adley Forti Rubira², Emerson Marcelo Girotto²

Affiliations

¹ Materials Chemistry and Sensors Laboratories, Department of Chemistry and Group of Polymeric and Composite Materials, Universidade Estadual de Maringá, Av. Colombo 5790, 87020-900 Maringá, Paraná, Brazil. Electronic address: geddalias@hotmail.com.
² Materials Chemistry and Sensors Laboratories, Department of Chemistry and Group of Polymeric and Composite Materials, Universidade Estadual de Maringá, Av. Colombo 5790, 87020-900 Maringá, Paraná, Brazil.
³ Universidade Tecnológica Federal do Paraná, Rua Marcílio Dias 635, 86812-460 Apucarana, Paraná, Brazil. Electronic address: murilomoises@hotmail.com.

PMID: 29455037
DOI: 10.1016/j.jmbbm.2018.02.009

Abstract

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_sl), 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.

Keywords: 3-methacryloxypropyltrimethoxysilane; Adhesives; Composite resin; Physicochemical phenomena; SBA-15.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Composite Resins / chemistry*
Dental Cements / chemistry*
Dental Materials / chemistry*
Elastic Modulus
Materials Testing
Silicon Dioxide / chemistry*
Surface Properties

Substances

Composite Resins
Dental Cements
Dental Materials
SBA-15
Silicon Dioxide