The authors updated a
previously published systematic review to assess the effects of low-level laser
therapy (LLLT) on reducing complications after the removal of impacted
mandibular third molars. The authors searched for randomized clinical trials in
which the investigators evaluated the efficacy of LLLT compared with that of
placebo or no treatment. Two reviewers independently screened studies, extracted
data, and assessed risk of bias. The authors used random effects model
meta-analysis and the Grading of Recommendations Assessment, Development and
Evaluation approach to rate the certainty of evidence.
Key Words. Impacted mandibular third molar; systematic review; postsurgical
complications; pain; swelling; trismus.