title: Comparative study of upper lip frenectomy with the  CO2 laser versus the Er, Cr:YSGG laser.
abstract: OBJECTIVE
  To compare upper lip frenulum reinsertion, bleeding, surgical time and surgical wound healing in frenectomies performed with the CO2 laser versus the Er, Cr:YSGG laser.
  
  
  METHODS
  A prospective study was carried out on 50 randomized pediatric patients who underwent rhomboidal resection of the upper lip frenulum with either the CO2 laser or the Er,Cr:YSGG laser. Twenty-five patients were assigned to each laser system. All patients were examined at 7, 14, 21 days and 4 months after the operation in order to assess the surgical wound healing.
  
  
  RESULTS
  Insertion of the frenulum, which was preoperatively located between the upper central incisors, migrated to the mucogingival junction as a result of using both laser systems in all patients. Only two patients required a single dose of 650 mg of paracetamol, one of either study group. CO2 laser registered improved intraoperative bleeding control results and shorter surgical times. On the other hand, the Er,Cr:YSGG laser achieved faster healing.
  
  
  CONCLUSIONS
  Upper lip laser frenectomy is a simple technique that results in minimum or no postoperative swelling or pain, and which involves upper lip frenulum reinsertion at the mucogingival junction. The CO2 laser offers a bloodless field and shorter surgical times compared with the Er,Cr:YSGG laser. On the other hand, the Er,Cr:YSGG laser achieved faster wound healing.
authors.affiliation: Centro Médico Teknon, Instituto de Investigación IDIBELL, C/ Vilana 12, 08022 Barcelona, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Pié-Sánchez
authors.forename: A-J
authors.initials: AJ
authors.lastname: España-Tost
authors.forename: J
authors.initials: J
authors.lastname: Arnabat-Domínguez
authors.forename: C
authors.initials: C
authors.lastname: Gay-Escoda
mesh_terms: D002648:Child; D005260:Female; D006801:Humans; D007742:Labial Frenum / Q000601:surgery*; D053685:Laser Therapy; D054020:Lasers, Gas / Q000627:therapeutic use*; D053844:Lasers, Solid-State / Q000627:therapeutic use*; D008297:Male; D011446:Prospective Studies