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

Area of Science:

• * Aesthetic Medicine
• * Craniomaxillofacial Surgery
• * Dentistry
• * Orthodontics

Background:

• * Injectable aesthetic treatments, particularly hyaluronic acid fillers, are globally popular for facial augmentation.
• * Chin augmentation requires consideration of unique factors: mandibular growth patterns, dental occlusion, and mentalis muscle.
• * Current aesthetic practices lack a unified approach to chin assessment and treatment planning.

Purpose of the Study:

• * To synthesize existing literature from surgery, dentistry, and aesthetic medicine.
• * To propose an integrated algorithm for chin assessment and injectable treatment.
• * To provide a novel, practical method for medical aesthetics practitioners.

Main Methods:

• * A preliminary case series of 3 patients (surgical and nonsurgical).
• * Literature synthesis across multiple medical disciplines.
• * Development of a chin assessment algorithm adaptable for smartphone use.

Main Results:

• * Two nonsurgical cases demonstrated retrognathia with distinct clockwise and counter-clockwise mandibular growth patterns.
• * One surgical case illustrated successful treatment of severe mandibular rotation due to condylar resorption using a staged surgical approach.
• * The presented methodology proved effective in managing complex chin deformities.

Conclusions:

• * Effective lower face aesthetics necessitate integrating surgical, dental, and aesthetic medicine principles.
• * Clinical assessment of facial growth patterns enables harmonious treatment planning and aging management.
• * This study presents the first integrated chin treatment algorithm for medical aesthetics, incorporating growth rotation and sagittal dimensions for predictable outcomes.