title: [An original proposal of a new partially crystalline glass material for dental use. Structural notes on SEM and the microscopic effects of surface acid treatment].
abstract: The authors propose a glass-ceramic material which is completely new for using in restorative dentistry. The surface etching of this material just after fusion transforms its optical characteristics and produces a nice translucency. This treatment, extremely fast, simple and cheap, takes the place of complex annealings and of expensive formulations which can create solidification germs. Our methodological choice is oriented to eliminate rather than to increase the orderly component of the composite structure (as shown by the etching treatment of the surface). Our aim is to show that this component is not formed by genuine crystals but by weak crystal-like structures, held together by Van der Waals links.
authors.affiliation: Dipartmento di Scienze Odonto-Stomatologiche, Università degli Studi, Siena.
authors.forename: V
authors.initials: V
authors.lastname: Ortolani
authors.forename: E
authors.initials: E
authors.lastname: Paccagnini
mesh_terms: D000134:Acid Etching, Dental; D002516:Ceramics / Q000737:chemistry*; D003460:Crystallization; D003764:Dental Materials / Q000737:chemistry*; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D013499:Surface Properties
chemical_list: D003764:Dental Materials; C023506:Glass ceramics