Effectiveness and Safety of a Hyaluronic Acid Filler for Chin Augmentation and Correction of Chin Retrusion: A Multi-center, Prospective, Randomized Controlled Trial

• Published in: Aesthetic plastic surgery 2024-11
• Main Authors: Liao, Zhifeng, Ma, Jianxun, Bu, Xi, Zhang, Yanjun, Wang, Shiliang, Hou, Yuxin, Clément, Julien, Hu, Xueqing, Bo, Hongliang, Zeng, Ang, Yu, Nanze, Luo, Sheng-Kang, Li, Bi
• Format: Article
• Language: English
• ISSN: 0364-216X; 1432-5241; 1432-5241
• DOI: 10.1007/s00266-024-04494-0

The chin significantly influences facial aesthetics, contributing to the overall balance and harmony of the face. This study aimed to assess the effectiveness of the hyaluronic acid filler Hyamax® Volumizer for chin augmentation and correction of chin retrusion compared to a no-treatment control. Participants aged 18-55 years with mild to moderate chin retrusion were randomized in a 3:1 ratio to receive either the treatment group (n = 150) or control group (n = 50). Evaluations included blinded assessments using the validated Galderma Chin Retrusion Scale, Global Aesthetic Improvement Scale for aesthetic enhancement, and safety follow-up. The Galderma Chin Retrusion Scale responder rate (≥1 grade improvement) was significantly higher for the treatment group (70%) compared to the control group (0%) at 6 months (p < 0.0001), and remained higher at 12 months (54.67% vs. 0%; p < 0.0001). Aesthetic improvement rates were consistently high as reported by both blinded evaluating investigator (≥89.33%) and subjects (≥91.33%). Treatment-related adverse events were mild to moderate. Hyamax® Volumizer treatment is safe and effective when injected in the chin to treat chin retrusion, with results lasting through 1 year. This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266 .