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Related Experiment Video

Updated: May 1, 2026

Adjunctive Diode Laser Therapy and Probiotic Lactobacillus Therapy in the Treatment of Periodontitis and Peri-Implant Disease
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Does low-level laser therapy decrease swelling and pain resulting from orthognathic surgery?

G Gasperini1, I C Rodrigues de Siqueira1, L Rezende Costa2

  • 1Department of Oral and Maxillofacial Surgery, Clinical Hospital, Federal University of Goiás, Goiânia, Goiás, Brazil.

International Journal of Oral and Maxillofacial Surgery
|April 1, 2014
PubMed
Summary
This summary is machine-generated.

Low-level laser therapy (LLLT) effectively reduced post-orthognathic surgery swelling and pain. This therapy improved tissue response, offering a promising alternative for patient recovery.

Keywords:
low-level laser therapyorthognathic surgerypainswelling.

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Area of Science:

  • Oral and Maxillofacial Surgery
  • Biomedical Engineering
  • Regenerative Medicine

Background:

  • Orthognathic surgery often results in significant post-operative swelling and pain.
  • Limited research exists on the efficacy of Low-Level Laser Therapy (LLLT) for managing these symptoms.
  • LLLT presents a potential non-invasive therapeutic option for improving patient outcomes.

Purpose of the Study:

  • To evaluate the effectiveness of a specific Low-Level Laser Therapy (LLLT) protocol in mitigating swelling and pain following orthognathic surgery.
  • To compare the outcomes of LLLT application versus a sham procedure on contralateral sides of the face.

Main Methods:

  • A randomized study involving ten patients undergoing bilateral sagittal split osteotomy and Le Fort I osteotomy.
  • LLLT was applied intraorally and extraorally to one side of the face (irradiated), while the other side received a simulated treatment (non-irradiated).
  • Swelling was quantified using a swelling coefficient, and pain was assessed using a visual analogue scale at various post-operative time points.

Main Results:

  • No significant differences in swelling or pain were observed between the irradiated and non-irradiated sides in the immediate post-operative period.
  • A significant reduction in swelling was noted on the LLLT-treated side on post-operative days 3, 7, 15, and 30.
  • Patients reported less intense pain on the irradiated side at 24 hours and 3 days post-surgery, with pain resolving on both sides by day 7.

Conclusions:

  • The investigated LLLT protocol demonstrates efficacy in reducing post-orthognathic surgery swelling.
  • LLLT application leads to a notable decrease in patient-reported pain in the early post-operative phase.
  • LLLT is a viable therapeutic option for enhancing tissue recovery and alleviating pain after orthognathic procedures.