Effect of Acidic Comonomers on Methacrylate Conversion and Mechanical Strength of Bioactive Composites Based on Amorphous Calcium Phosphate

Published

January 1, 2003

Author(s)

Joseph M. Antonucci, Walter G. McDonough, Da-Wei Liu, Drago Skrtic

Abstract

Prior research utilizing a monomer system consisting of the dental monomers Bis-GMA and TEGDMA at equal masse levels with neutral, hydrophilic monomers indicated that, generally, the ternary monomer enhanced the degree of methacrylate conversion (DC) but not the mechanical strength of composites based on amorphous calcium phosphate (ACP). In this study four acidic monomers were evaluated for their effect on the DC and mechanical strength of similar Bis-GMA/TEGDMA ACP composites. The DC exhibited little dependence on the chemical structure of the acidic comonomers but showed less of a reduction in DC when ACP was added to the copolymer matrices compared to ternary matrices of the earlier study. Also, compared to neutral hydrophilic comonomers, some of the acidic comonomers showed promise as surface-active comonomers that may improve the overall properties of ACP composites.

Citation

PMSE Preprints of the American Chemical Society

Volume

88

Pub Type

Journals

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Keywords

amorphous calcium phosphate, biaxial flexure strength, bioactive composites, methacrylate conversion, Dentistry

Citation

Antonucci, J. , McDonough, W. , Liu, D. and Skrtic, D. (2003), Effect of Acidic Comonomers on Methacrylate Conversion and Mechanical Strength of Bioactive Composites Based on Amorphous Calcium Phosphate, PMSE Preprints of the American Chemical Society, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=852130 (Accessed October 27, 2025)