IntroductionThe aim of present study was to compare the keratinized gingival tissue measurements, degree of subjective complaints and functional complications of using an 980nm diode laser versus a scalpel for labial frenectomies. Material and methodsThirty-six patients requiring labial frenectomies, between 14 and 51 years old, were randomly assigned to either scalpel or diode laser treatments. The soft tissue measurements, including the keratinized gingiva width (KGW), attached gingiva width (AGW) and attached gingiva thickness (AGT), were recorded before surgery, immediately after, one week later and one, three and six months after surgery. In addition, the functional complications and the morbidity (level of pain, swelling and redness) were evaluated during the first postoperative week using a visual analog scale (VAS). ResultsWe determined statistically significant gains in the KGW, AGW and AGT after surgery in both groups; however, there was no significant difference between the study groups. The VAS scores indicated that the patients treated with a diode laser had less discomfort and functional complications compare with scalpel surgery. DiscussionThe results described above show that diode laser surgery offers a safe, impressive alternative for labial frenectomies that are comfortable for the patients.