title: Light-curing of dental resins with GaN violet laser diode: the effect of photoinitiator on mechanical strength.
abstract: The purpose of this study was to evaluate whether a Gallium Nitride (GaN) -based violet laser diode (VLM500) could be used as a light source for light-cured dental resins. Three experimental unfilled resins containing different photoinitiators (camphorquinone, CQ; phenyl propanedione, PPD; or mono acylphosphineoxide, MAPO) were evaluated. These resins were light-cured with a VLM500 laser diode, and their ultimate micro-tensile strengths (μTS) were compared to those cured with three different LED light sources (Curenos, G-Light Prima-normal mode and G-Light Prima-PL mode). The VLM500 produced high μTS values in all three resins, and we concluded that this violet laser diode can be used as a light source for light-cured dental resin materials.
authors.affiliation: Oral Health Science Center HRC7, Tokyo Dental College, Chiba, Japan. kameyama@tdc.ac.jp
authors.forename: Atsushi
authors.initials: A
authors.lastname: Kameyama
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Hatayama
authors.forename: Junji
authors.initials: J
authors.lastname: Kato
authors.forename: Akiko
authors.initials: A
authors.lastname: Haruyama
authors.forename: Hiromi
authors.initials: H
authors.lastname: Teraoka
authors.forename: Yasuaki
authors.initials: Y
authors.lastname: Takase
authors.forename: Masao
authors.initials: M
authors.lastname: Yoshinari
authors.forename: Masatake
authors.initials: M
authors.lastname: Tsunoda
mesh_terms: D002164:Camphor / Q000031:analogs & derivatives; D047188:Chalcones; D003799:Dental Stress Analysis; D006801:Humans; D054023:Lasers, Semiconductor; D055115:Light-Curing of Dental Adhesives / Q000379:methods*; D008422:Materials Testing; D010720:Phosphines; D058567:Photoinitiators, Dental; D012117:Resins, Synthetic / Q000528:radiation effects*; D013718:Tensile Strength
chemical_list: D047188:Chalcones; D010720:Phosphines; D058567:Photoinitiators, Dental; D012117:Resins, Synthetic; D002164:Camphor; C553149:camphorquinone; C100349:1-phenyl-1,2-propanedione