Effects of Light-Initiation Agent on Mechanical Properties of Light-Cured Nano-Hydroxyapatite Composite for Dental Restoration

Abstract:

Article Preview

In order to improve the experimental evidence of hotoinitiator, the effects of various dose of photoinitiator on mechanical properties of nanohydroxyapatite composite were investigated. According to the light initiating system, CQ and DMAEMA accounted for 0.8wt%, 1.0wt%, 1.2wt% of total resin matrix, respectively. And then NHA processed by KH-570 was mixed with resin matrix in the ratio of 55:45. Then three groups (A, B, and C) of light-cured nanohydroxyapatite composites were prepared. Karuisima composite resin was used as control group D. The cured depth, compressive strength, and flexural strength were determined in each group. The results showed that as the ratio of photoinitiator increased, the cured depth increased, while the mechanical function declined. In group B, there were no significant differences in compressive strength, and flexural strength as compared with control group, P>0.05. It is suggested that the quantity of CQ and DMAEMA in resin matrix were 1.0wt% respectively, the new light-cured nanohydroxyapatite composite has good qualities in both cured depth and mechanical property.

Info:

Periodical:

Edited by:

Honghua Tan

Pages:

1012-1016

DOI:

10.4028/www.scientific.net/AMM.138-139.1012

Citation:

Q. S. Wang et al., "Effects of Light-Initiation Agent on Mechanical Properties of Light-Cured Nano-Hydroxyapatite Composite for Dental Restoration", Applied Mechanics and Materials, Vols. 138-139, pp. 1012-1016, 2012

Online since:

November 2011

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.