ESEM Study of Dental Adhesive Polymerization

Autor:	J. D. Eick, V. M. Dusevich
Rok vydání:	2001
Předmět:	Materials science stomatognathic system Polymerization technology industry and agriculture Adhesive Composite material Instrumentation Environmental scanning electron microscope
Zdroj:	Microscopy and Microanalysis. 7:120-121
ISSN:	1435-8115 1431-9276
Popis:	Dental adhesives are bonded to a wet surface of live tissue, dentin. There are two important stages of surface preparation for adhesive application: 1) Etching the tooth structure creating a layer of collagen network free from mineral, and 2) Applying a primer, in this case a water solution of hydrophilic monomer of 2-hydroxyethylmethacrylate (ScotchBond Multipurpose®, 3M). During the priming stage, the resin monomer should penetrate the fibril network and coat collagen fibrils. Subsequent adhesive resin penetration into the collagen network (hybrid layer) is not uniform, influenced by the presence of residual water and degree of resin polymerization. Dependence of bond strength of dental adhesives on time or intensity of light activation is well known, but no direct microscopic observations of the dynamics of polymerization were performed. This was due to the fact that during specimen dehydration for conventional SEM the polymerization process is still proceeding and residual monomer could be washed out.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::db291a79e07292997d921f505e18b75e https://doi.org/10.1017/s1431927600026672 Zobrazit plný text záznamu