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Dental Properties of Hydroxyapatite Filled Polymer Composite  

Kim Oh-Young (Department of Polymer Science & Engineering, Dankook University)
Seo Ki-Taek (Department of Polymer Science & Engineering, Dankook University)
Publication Information
Polymer(Korea) / v.30, no.2, 2006 , pp. 135-139 More about this Journal
Abstract
To evaluate the dental restorative application of polymer composites filled with hydroxyapatite (HAP) which is an inorganic component of human bone material, dental properties of the polymer composites were investigated. A visible light system was utilized to activate the acrylate resin matrix of the composites. Maximum loading percentage of HAP in composite was 65 wt% and the depth of cure was 6.0 mm which can be applicable for dental restoration. With increasing the HAP content, degree of conversion of polymer composites was slightly decreased, however, polymerization shrinkage value was not varied. Diametral tensile strength value was enhanced with an increase of HAP content, however, there was no strict trend between flexural strength and HAP concentration. Anyhow, polymer composites prepared herein have superior mechanical properties sufficient specifications applicable to dental materials.
Keywords
hydroxyapatite; acrylate; visible-light; dental; restorative;
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