Surgical treatment of mandibular prognathism using intraoral vertical ramus osteotomy

Jung, Hwi-Dong; Oh, You Na; Kim, Gi Jung

doi:2025.63.6.207

J Korean Dent Assoc > Volume 63(6); 2025 > Article

Special Issue

Journal of Korean Dental Association 2025;63(6):207-215.
DOI: https://doi.org/10.22974/jkda.2025.63.6.004 Published online June 30, 2025.

구내 상행지 수직골 절단술을 활용한 하악전돌증 수술치료의 최신 지견

Surgical treatment of mandibular prognathism using intraoral vertical ramus osteotomy

Hwi-Dong Jung

, You Na Oh

, Gi Jung Kim

Wiz Dental Clinic, Seoul, Korea

Correspondence: Gi Jung Kim, Tel: +82-2-3488-5588,
Email: clinicwiz@naver.com

Abstract

Intraoral vertical ramus osteotomy (IVRO) is a surgical procedure that can be used to move the distal segment of the mandible posteriorly for the treatment of mandibular prognathism. The mesial segment overlaps with distal segment laterally and goes through a healing process while cortical-to-cortical contact. Compared to sagittal split ramus osteotomy (SSRO), IVRO has the following advantages: the surgical procedure is simple, so there is a low possibility of unexpected fractures; the surgical time is short relatively; the possibility of inferior alveolar nerve damage is low; it has positive effect in treatment temporomandibular joint disease through the condylotomy effect; and the anteroposterior stability is relatively favorable.

Key Words: Intraoral vertical ramus osteotomy, IVRO, SSRO, Orthognathic surgery, Prognathism, Dentofacial deformity