http://www.ec21.com/ec-market/dental laser whitening system.html http://belinda12.en.ec21.com/DentSmile_5W_Dental_Diode_Laser--1908937_3491416.htmlDental handpiece + Handpiece for whitening (Optional) + ENT handpiece (Optional) + &20090417 http://bnbsys.en.ec21.com/Whitening_Curing_Light--1118872_1119747.htmlWhitening System 1. Fast in-office tooth whitening(Power Bleaching) The BC 300 series is a laser-free instrument line20060217 http://cathy0526.en.ec21.com/Teeth_Whitening_System--2132533_2134002.htmlwhitening system based on the primary cool-light and laser tooth whitening technology. More than 2000 Elite Smile tooth20070809 http://odsgroup.en.ec21.com/Laser_Plasma_Light--1920481_2292384.htmldental clinic, based on a Blue Light System with light frequency of 465-470 nanometers to activate the whitening gel an20070925