A lot of visible laser device and near infrared lasers have got wide applications for current surgical treatment. Laser light gets super strong transmittance into tissue, thus it makes great work for oral tissues treatment, and incise tissues with hemostasis. 405nm Violet laser diode module gets oscillating wavelength of 405nm, which is nearly reaching the peak of the absorption spectrum of hemoglobin. It is also getting great use for current time dental and oral surgeries etc.