Structural Osteotomies of the Chin Using Coronal Technique and Modification of Telescopic Advancement Genioplasty: A Review of Two Clinical Cases

The chin plays a key role in facial harmony; its three-dimensional correction via genioplasty addresses morphological, functional, and aesthetic deformities with personalized techniques. The objective of this study to present two innovative surgical techniques for structural osteotomies of the chin: a coronal technique for multivector reduction and a modification of telescopic genioplasty for controlled advancement, based on two clinical cases. A 22-year-old male patient with Class I dolichocephalic condition underwent osteotomy and coronal genioplasty. A 28-year-old female patient with a brachyfacial biotype and severe promentonism underwent bimaxillary orthognathic surgery followed by modified telescopic genioplasty. Both techniques are described and performed, using a reciprocating saw and piezoelectric saw, with an intraoral approach and intermaxillary fixation. Both techniques improved chin symmetry and projection while respecting the mentolabial sulcus and without compromising the airway or facial architecture.

KEY WORD: Genioplasty, mandibular osteotomy, orthognathic surgery, facial aesthetics, chin.

SOLÉ-VENTURA, P.; TAPIA-CONTRERAS, P.; MATUS- MIRANDA, G.; DÍAZ-ABARZA, S. & MORDOH- CUCURELLA, S. Structural osteotomies of the chin using coronal technique and modification of telescopic advancement genioplasty:- A review of two clinical cases. Int. J. Odontostomat., 19(4):500-504, 2025.