The effect of an 810-nm diode laser on postoperative pain and tissue response after modified Widman flap surgery: a pilot study in humans

J Periodontol. 2013 Feb;84(2):152-8. doi: 10.1902/jop.2012.110660. Epub 2012 Apr 23.


Background: The purpose of this single-masked pilot clinical study is to compare the tissue response and postoperative pain after the use of a diode laser (810 nm) (DL) as an adjunct to modified Widman flap (MWF) surgery to that of MWF alone.

Methods: Thirteen patients with generalized severe chronic periodontitis completed the study. Control sites were randomly selected to receive an MWF and the contralateral test sites an MWF in conjunction with a DL. The study tooth/site was treated plus any additional teeth in the quadrant in which the site was located, if needed. Randomization was done using a coin flip. The DL was used to de-epithelialize the inner part of the periodontal flap and photo-biostimulate the surgical area. Pain scale assessment (PS), pain medication consumption (PM), tissue edema (TE), and tissue color (TC) were evaluated 1 week after surgery.

Results: Statistically significant differences were seen for TE (P = 0.041), PM (P <0.001), and PS (P <0.001) favoring test sites. TC did not show a statistically significant difference (P = 0.9766). Patients rated the first surgical treatment (test or control; random assignment to first treatment) performed as more painful than the second (P <0.002).

Conclusion: The use of an 810-nm diode laser provided additional benefits to MWF surgery in terms of less edema and postoperative pain.

Publication types

  • Comparative Study
  • Randomized Controlled Trial

MeSH terms

  • Analgesics, Non-Narcotic / therapeutic use
  • Chronic Periodontitis / radiotherapy
  • Chronic Periodontitis / surgery*
  • Color
  • Combined Modality Therapy
  • Edema / etiology
  • Female
  • Humans
  • Ibuprofen / therapeutic use
  • Lasers, Semiconductor / therapeutic use*
  • Low-Level Light Therapy / methods*
  • Male
  • Middle Aged
  • Pain Measurement
  • Pain, Postoperative / prevention & control*
  • Periodontal Pocket / radiotherapy
  • Periodontal Pocket / surgery
  • Pilot Projects
  • Postoperative Complications
  • Single-Blind Method
  • Surgical Flaps*
  • Treatment Outcome
  • Wound Healing / physiology
  • Wound Healing / radiation effects


  • Analgesics, Non-Narcotic
  • Ibuprofen