The Advancement-Rotation Principle in Chin Augmentation: A Preliminary Case Series

Background Injectable aesthetic treatments continue to grow in popularity globally. Hyaluronic acid-based filler remains the mainstay, used to augment or restore dimensions. Treatments to advance the chin must account for additional factors that are unique to this region, including the mandibular growth pattern, dental occlusion, and soft tissues in the form of the mentalis muscle. Objectives This preliminary report synthesises literature from across surgery, dentistry and aesthetic medicine to propose an integrated method for chin assessment and treatment using injectables. Methods We present a preliminary three patient case series drawing on surgical and non-surgical cases. The presented integrated algorithm for chin assessment is applicable to medical aesthetics with the use of a smartphone camera. Results Two non-surgical patients each demonstrate retrognathia with contrasting mandibular growth patterns; one clockwise and one counter-clockwise. One surgical patient supports the presented methodology, where severe clockwise rotation of the mandible resulting from progressive condylar resorption was treated with two-stage surgery. Conclusions Effective lower face treatment requires integration of concepts from across surgery, dentistry and aesthetic medicine. Facial growth patterns can be assessed clinically, enabling practitioners to plan and execute treatments in a way that promotes facial profile harmony and moderates an individual’s ageing trajectory. This preliminary series highlights how the growth rotation pattern and sagittal dimensions predictably impact lower facial features, offering novel treatment strategies. This article is the first to integrate concepts from Craniomaxillofacial surgery, Orthodontics, and Aesthetic Medicine into a chin treatment algorithm that can be easily implemented in medical aesthetics practice.