ADVANCEMENT GENIOPLASTY: COMPARISON BETWEEN SLIDING OSTEOTOMY AND ALLOPLASTIC IMPLANTS

Abstract

Advancement genioplasty is a widely used procedure in facial harmonization, aiming to correct chin deformities such as microgenia, thereby contributing to the aesthetic and functional balance of the lower third of the face. Among the available techniques, sliding genioplasty and alloplastic chin implants stand out, each presenting distinct indications, advantages, and complication profiles. This study aimed to perform a narrative literature review with a qualitative approach, comparing these two techniques regarding their indications, outcomes, and complications. The literature search was conducted in PubMed, SciELO, and ScienceDirect databases, including articles published within the last ten years. A total of 15 relevant studies were selected, comprising systematic reviews, clinical studies, and literature reviews. The findings demonstrated that both techniques provide high patient satisfaction rates and satisfactory aesthetic outcomes. However, sliding genioplasty showed greater predictability and long-term stability, being more suitable for moderate to severe deformities and cases requiring three-dimensional correction. In contrast, alloplastic implants were associated with lower invasiveness, shorter operative time, and faster recovery, being more appropriate for mild to moderate cases. Regarding complications, implants were more frequently associated with infections, extrusion, and bone resorption, whereas sliding genioplasty was mainly related to neurosensory alterations, which are generally transient. It can be concluded that both techniques are effective, with no absolute superiority between them, and the choice should be based on individualized patient assessment and careful surgical planning.