Dentistry

News and Updates

Plot graph shows dark purple block at left with areas growing lighter green to the right.

Nanocylinder Vibrations Help Quantify Polymer Curing for 3D Printing

December 10, 2020

In a step toward making more accurate and uniform 3D-printed parts such as personalized prosthetics and dental materials, researchers at the National Institute

Dr. Nicole L. Ritzert is pictured in her ADA lab.

NIST Continues 1920s CRADA Partnership with the American Dental Association

August 1, 2019

The interagency research, which has led to dental products such as tooth-colored composites, the front surface dental mirror, the panoramic x-ray machine

Tooth Remineralization Method Licensed To international Healthcare Manufacturer

September 12, 1995

A major breakthrough in oral health care has been brought closer to the marketplace by the licensing of several tooth remineralization and desensitization

Projects and Programs

Tissue Engineering

Ongoing

Our goal is to develop reliable tools and standards for measuring the properties of cells, biomaterials, scaffolds and tissue-engineered constructs. As

Publications

System compliance dictates the effect of composite filler content on polymerization shrinkage stress

January 28, 2022

Author(s)

Zhengzhi Wang, Martin Chiang

The effect of filler content in dental restorative composites on the polymerization shrinkage stress (PS) is not straightforward and has caused much debate in

Simultaneous Measurement of Polymerization Stress and Curing Kinetics for Photo-polymerized Composites with High Filler Contents

January 28, 2022

Author(s)

Zhengzhi Wang, Forrest A. Landis, Anthony A. Giuseppetti, Sheng Lin-Gibson, Martin Chiang

Objectives. Photopolymerized composites are used in a broad range of applications with their performance largely directed by reaction kinetics and contraction

Polymerization stress evolution of a bulk-fill flowable composite under different compliances

January 28, 2022

Author(s)

Martin Chiang, Yongwen Guo, Forrest A. Landis, Zhengzhi Wang, Ding Bai, Li Jiang

This study was to use a compliance-variable instrument to simultaneously measure and compare the polymerization shrinkage stress (PS) evolution, degree of

NIST Recommended Practice Guide: Fractography of Ceramics and Glasses, 3rd edition

September 14, 2020

Author(s)

George D. Quinn

Fractography is a powerful but underutilized tool for the analysis of fractured glasses and ceramics, for fractures in the laboratory and for component failures