Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Nondestructive quantification of leakage and its correlation with material performance parameters

Published

Author(s)

Jirun Sun, Rui Fang, Nancy Lin, Naomi Eidelman, Sheng Lin-Gibson

Abstract

Current methods to determine debonding/leakage at the tooth-composite interphase are qualitative or semi-quantitative. Our previous work introduced a 3D imaging technique to determine and visualize leakage and its distribution at the interface of cavity wall and composite restoration in model cavities. In this study, an automated program was developed to quantify leakage in terms of area and volume. 3D leakage distribution obtained via image analysis program was compared with that visualized by dye penetration. The relation between leakage and various material performance parameters including processability, shrinkage, stress, and shrinkage strain-rate were determined using a series of experimental composites containing different filler contents. This powerful method provides insight to understand the correlation between leakage and material properties.
Citation
Biomaterials

Keywords

Composites, Dental restorative material, FTIR microspectroscopy, Microleakage, Photopolymerization, Polymerization shrinkage, X-ray microcomputed tomography, Shrinkage strain-rate

Citation

Sun, J. , Fang, R. , Lin, N. , Eidelman, N. and Lin-Gibson, S. (2009), Nondestructive quantification of leakage and its correlation with material performance parameters, Biomaterials, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=901836 (Accessed May 17, 2022)
Created July 29, 2009, Updated October 12, 2021