Clinical Study of Biostimulation with Low-Power Diode Laser After Dental Extractions

<b>Introduction:</b> The objective of the present work is to assess the efficacy of photobiomodulation (PBM) with respect to pain, inflammation, and healing after tooth extractions as compared with a sham treatment. <b>Method:</b> A single-blinded, randomized clinical study conducted in a private dental clinic in Murcia, it included 124 patients who needed a tooth extraction, excluding those with medical conditions that could affect healing (such as non-controlled diabetes, immunosuppression, or hemorrhagic disorders). Group I (Experimental): extraction and PBM session with a diode laser (power: 0.5 W, energy 15 J/cm² for 10-30 s at 1 mm from the tissue). Group II (Sham treatment): tooth extraction and application of inactive PBM. <b>Results:</b> Pain and inflammation decreased similarly in both groups over time. Anxiety decreased in both groups without significant differences (<i>p</i> = 0.776; <i>p</i> = 0.246). There was no evidence that the treatment or location of the extraction had an influence on healing. Suturing the socket increased the likelihood of good healing (<i>p</i> = 0.048), while long procedures reduced it (<i>p</i> = 0.040). <b>Conclusions:</b> PBM is a non-invasive and safe therapy. This study did not show significant differences with respect to the sham treatment. More research is needed with a standardized methodology to better assess its efficacy.