Use of Autologous Platelet-Rich Plasma (PRP) in Periodontal Defect Treatment After Extraction of Impacted Mandibular Third Molars

The extraction of mesioangular impacted third molars may cause multiple periodontal defects at the distal root of the second molar. These complications are even more frequent in older patients and when there are preoperative periodontal defects on the distal surface of the second molar before extraction of the impacted third molar. Mesioversion is among the most damaging positions of impacted mandibular third molars because it results in the growth of a soft osseous defect distally to the second molar and/or the development of periodontal pockets around the latter.6 Platelet-rich plasma (PRP) is a material containing many autologous growth factors, such as plateletderived growth factors (PDGF) and transforming growth factor-, among others, which may be used in repairing and preventing periodontal complications at the distal root of the second molar adjacent to the extracted third molar. The aim of this clinical study was to assess the efficacy of autologous PRP in bone regeneration techniques to prevent periodontal complications at the distal root of the mandibular second molar following extraction of a mesioangular impacted third molar.