title: Pseudoepitheliomatous hyperplasia after diode laser oral surgery. An experimental study.
abstract: BACKGROUND
  to examine the process of epithelial reparation in a surgical wound caused by diode laser.
  
  
  METHODS
  An experimental study with 27 Sprage-Dawley rats was undertaken. The animals were randomly allocated to two experimental groups, whose individuals underwent glossectomy by means of a diode laser at different wattages, and a control group treated using a number 15 scalpel blade. The animals were slaughtered at the 2nd, 7th, and 14th day after glossectomy. The specimens were independently studied by two pathologists (blinded for the specimens' group).
  
  
  RESULTS
  at the 7th day, re-epithelisation was slightly faster for the control group (conventional scalpel) (p=0.011). At the 14th day, complete re-epithelization was observed for all groups. The experimental groups displayed a pseudoepitheliomatous hyperplasia.
  
  
  CONCLUSIONS
  it is concluded that, considering the limitations of this kind of experimental studies, early re-epithelisation occurs slightly faster when a conventional scalpel is used for incision, although re-epithelisation is completed in two weeks no matter the instrument used. In addition, pseudoepitheliomatous hyperplasia is a potential event after oral mucosa surgery with diode laser. Knowledge about this phenomenon (not previously described) may prevent diagnostic mistakes and inadequate treatment approaches, particularly when dealing with potentially malignant oral lesions.
authors.affiliation: Cantón Grande 5, Apt. 1 E, 15003 A Coruña, Spain, juanmanuel.seoane@usc.es.
authors.forename: Juan
authors.initials: J
authors.lastname: Seoane
authors.forename: Antonio
authors.initials: A
authors.lastname: González-Mosquera
authors.forename: José-Manuel
authors.initials: JM
authors.lastname: García-Martín
authors.forename: Lucía
authors.initials: L
authors.lastname: García-Caballero
authors.forename: Juan-Manuel
authors.initials: JM
authors.lastname: Seoane-Romero
authors.forename: Pablo
authors.initials: P
authors.lastname: Varela-Centelles
mesh_terms: D000818:Animals; D006965:Hyperplasia; D053685:Laser Therapy / Q000379:methods*; D054023:Lasers, Semiconductor / Q000627:therapeutic use*; D009061:Mouth Mucosa / Q000473:pathology*; D019647:Oral Surgical Procedures / Q000379:methods*; D011897:Random Allocation; D051381:Rats; D017207:Rats, Sprague-Dawley; D014945:Wound Healing