Basic study on visible light activated dental composite resins - Polymerization and curing properties in argon ion laser irradiation

Autor:	Shigeyuki Masutani, Kaoru Suzuki, Takaya Masutani, Tetsuya Taniyama, Junji Nakata
Rok vydání:	1989
Předmět:	Dental composite Wavelength Materials science Polymerization technology industry and agriculture Transmittance Irradiation Composite material Curing (chemistry) Shrinkage Visible spectrum
Zdroj:	The Review of Laser Engineering. 17:642-651
ISSN:	1349-6603 0387-0200
DOI:	10.2184/lsj.17.9_642
Popis:	Light-activated dental composite resins undergo polymerization and curing by free-radical initiation like auto-cured resins. We studied the polymerization and curing properties of some commercially available light activated composites by using argon-ion laser.Results are summarized as: (1) The volume of a cured resion is dependent on the wavelength, and the maximum volume is obtained at 466 and 477 nm; (2) The volume of the cured resin increases with increasing irradiation power and time; (3) The rate of polymerization shrinkage gradually increases, before the saturation and (4) A correlation was observed between light transmittance and polymerization shrinkage for the composites of hybrid and traditional types which are relatively highly filled, but not for MFR type resins containing less micro-filler.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5dce5f520519de54a8d0138395ce65e1 https://doi.org/10.2184/lsj.17.9_642 Zobrazit plný text záznamu