Clinical applications of glass-ceramics in dentistry |
| |
Authors: | Wolfram Höland Volker Rheinberger Elke Apel Christian van ’t Hoen Marlies Höland Alex Dommann Marcel Obrecht Corinna Mauth Ursula Graf-Hausner |
| |
Affiliation: | (1) Ivoclar Vivadent AG, Principality of Liechtenstein, Schaan;(2) University of Applied Sciences and Technology, Buchs, Switzerland;(3) Zürcher Hochschule Winterthur, Winterthur, Switzerland |
| |
Abstract: | Glass-ceramics featuring special properties can be used as a basis to develop biomaterials. It is generally differentiated
between highly durable biomaterials for restorative dental applications and bioactive glass-ceramics for medical use, for
example, bone replacements. In detail, this paper presents one biomaterial from each of these two groups of materials.
In respect to the restorative dental biomaterials, the authors give an overview of the most important glass-ceramics for clinical
applications. Leucite, leucite-apatite, lithium disilicate and apatite containing glass-ceramics represent biomaterials for
these applications. In detail, the authors report on nucleation and crystallization mechanisms and properties of leucite-apatite
glass-ceramics. The mechanism of apatite nucleation is characterized by a heterogeneous process. Primary crystal phases of
α - and β -NaCaPO4 were determined.
Rhenanite glass-ceramics represent biomaterials with high surface reactivity in simulated body fluid, SBF, and exhibit reactive
behaviour in tests with bone cells. Cell adhesion phenomena and cell growth were observed. Suitable colonization and proliferation
and differentiation of cells as a preliminary stage in the development of a material for bone regeneration applications was
established. The authors conclude that the processes of heterogeneous nucleation and crystallization are important for controlling
the required reactions in both biomaterial groups. |
| |
Keywords: | |
本文献已被 PubMed SpringerLink 等数据库收录! |
|