Čes. stomatol. Prakt. zub. lék. (Czech Dental Journal) 2007; 107(1): 5-9

I. Thin Layers of Biocompatible Hydroxyapatite and Zircon - Physical Properties

Z. Teuberová¹, M. Seydlová¹, T. Dostálová¹, B. Dvořánková², K. Smetana Jr.², M. Jelínek³, P. Mašínová³, T. Kocourek³, K. Kolářová⁴, J. Wilson⁵

¹ Protetické oddělení, Stomatologická klinika 1. LF UK, Praha

² Anatomický ústav, 1. LF UK, Praha

³ Fyzikální ústav AV ČR, Praha

⁴ Ústav inženýrství pevných látek Vysoká škola chemicko-technologická, Praha

⁵ Fakulta nukleárních věd a fyzikálního inženýrství Česká technická univerzita, Praha

This study examined the mechanical and biological properties of titanium alloy implant cores with a buffer layer from zirconia and a coating of hydroxyapatite created with pulsed laser deposition (PLD). The thickness of the zirconia layer was 50 - 100 nm and the hydroxyapatite layer ~600 nm. We measured crystallinity, morphology, wettability and Ca/P ratio of the hydroxyapatite layer. The methods used for physical evaluation were electron microscopy, X-ray diffraction, goniometric measurement of contact angle and wavelength dispersive X-ray analysis. The physical tests summarized good mechanical properties and a satisfactory adhesion to a titanium core modified with zirconia and hydroxyapatite. PLD was found to be a promising method of applying thin films to a metal core for dental implants.

Keywords: dentistry; dental implant; coating; pulsed laser deposition; hydroxyapatite; zirconia

Published: March 1, 2007  Show citation