RESTRUCTURING THE MANDIBULAR ANGLE IN FACIAL AGING: A NOVEL TECNIQUE USING POLY-L-LACTIC ACID

The investigator will mark the application area by palpating the inferior and posterior boundaries of the face and the mandibular ramus, approximately 1 cm from these anatomical landmarks. The second PLLA injection point will be marked 1 cm from the inferior bony border of the mandible, anterior to the mandibular ligament. The demarcated area will be anesthetized with a local infiltration of 0.3-0.5 mL of 1% lidocaine with epinephrine, using a 30G needle. PLLA will then be reconstituted in 10 mL of sterile water for injection. Administration will be performed with a 30G needle inserted perpendicularly into the marked area until the supraperiosteal plane of the mandibular angle is reached, delivering a 0.7 mL bolus of the reconstituted product. At the second site-1 cm from the inferior bony border of the mandible, anterior to the mandibular ligament-a 0.2 mL dose of the reconstituted product will be injected.