MD, DDS, MSc, PhD.; Associate Professor of Oral Surgery. Faculty of Medicine and Health Sciences, Dentistry School, University of Barcelona.

Laser in Dentistry

The laser and currently other types of light, such as LED’s, have a wide application in health sciences. The laser (acronym for Light Amplification by Stimulated Emission of Radiation) is a tool that can be applied, in greater or lesser form, in each of the specialties both dental and health sciences. There are different types of lasers with application in dentistry, some are used to obtain an anti-inflammatory, analgesic and regenerative effect (soft laser) or combined with a pigment to make a broad disinfection, and others (high power laser) that can be used as a substitute for the scalpel or rotary instruments as high speed drill. Each laser has a wavelength that characterizes it, and not all wavelengths produce the same effects. For this reason, there is a wide diversity of lasers available to dentistry professionals, which can cover a wide variety of dental procedures. The most introduced laser in the field of dentistry is undoubtedly the diode laser. There are diode lasers of different wavelengths, both in the range of visible and infrared light. Diode lasers are tools that have a wide range of indications. Despite this, these types of lasers are not useful for cutting hard dental or bone tissues. Currently, in the market, there are three wavelengths capable of cutting dental hard tissues and bone, and they correspond to the Er,Cr:YSGG laser, the Er:YAG laser and the 9300nm CO2 laser, although this last only exists in the USA market. Although there is no single laser for everything, the Er, Cr: YSGG laser is, in my experience, the one that best meets the needs of the dental professional. During the presentation, mention will be made of the differences that exist between the most commonly used lasers, as well as a review of the many indications they have in the different dental specialties.