Healing of Mandibular Third Molar Extraction Sockets Using Platelet Concentrates and Photobiomodulation

Plain-language summary

Surgical removal of impacted mandibular third molars is a common procedure that may be associated with postoperative pain, swelling, limited mouth opening, and delayed bone healing. Various regenerative techniques are used to improve healing outcomes after tooth extraction. This study evaluated whether autologous platelet concentrates (advanced platelet-rich fibrin \[A-PRF+\] and concentrated growth factors \[CGF\]) and photobiomodulation using low-level laser therapy can improve healing after mandibular third molar extraction. Participants requiring surgical removal of a mandibular third molar were randomly assigned to one of six treatment groups. Depending on the group, patients received standard wound closure alone, photobiomodulation, placement of autologous platelet concentrates into the extraction socket, or a combination of platelet concentrates and photobiomodulation. Postoperative pain, swelling, mouth opening, and early wound healing were assessed during the first postoperative week. Bone regeneration within the extraction socket was evaluated using radiological imaging several months after surgery. All procedures used in this study are commonly applied in clinical practice and are considered safe. The results of this study may help identify the most effective approach to improve healing and reduce postoperative discomfort following mandibular third molar extraction.

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