The CO2 laser beam was introduced in oral laser surgery in 1980, and it revolutionized the field. Its effects on oral soft tissues offer many advantages: bloodless surgery, decontamination of the surgical site by heat generated, no need for suturing healthy patients, simplicity of use, and perfect control of the removed tissues. In addition, using the CO2 laser beam improves the tissue quality of the healed area due to collagen secretion induced by the tissular beam action, and has a bio-modulation effect on irradiated tissues. This atlas will examine and discuss some procedures common in...