Structural and dynamical studies of acid-mediated conversion in amorphous-calcium-phosphate based dental composites.

ABSTRACT:

Objective

To investigate the complex structural and dynamical conversion process of the amorphous-calcium-phosphate (ACP)-to-apatite transition in ACP based dental composite materials.

Methods

Composite disks were prepared using zirconia hybridized ACP fillers (0.4 mass fraction) and photo-activated Bis-GMA/TEGDMA resin (0.6 mass fraction). We performed an investigation of the solution-mediated ACP-to-apatite conversion mechanism in controlled acidic aqueous environment with in situ ultra-small angle X-ray scattering based coherent X-ray photon correlation spectroscopy and ex situ X-ray diffraction, as well as other complementary techniques.

Results

We established that the ACP-to-apatite conversion in ACP composites is a two-step process, owing to the sensitivity to l

SUBMITTER: Zhang F 

PROVIDER: S-EPMC4167569 | biostudies-literature | 2014 Oct

REPOSITORIES: biostudies-literature