Basic Problem and Possibility of Laser Scalpel

Abstract

The CO₂ laser (noncontact-type scalpel) and Nd-YAG laser (contact-type scalpel) are used in plastic surgery. The history, principle of oscillation, system, indications for lasers, mainly the most popular CO₂ laser, are described. A summary of the contact-type Nd: YAG laser, which was developed recently, and Nd: YAG/CO₂ complex lasers are described briefly. The laser oscillation tube, guidance tract, and handpiece have been modified markedly. They are being miniaturized with improved mobility. Ease of operation improved markedly. However, we should abandon the excessive expectation of the laser being a“magic ray”, as was put forth immediately after its advent. We should understand well the physical properties and actions on the living body of the laser and carefully evaluate its advantages and disadvantages before clinical applications.