Bimaxillary surgery to correct high-angle class II malocclusion: does a simultaneous genioplasty affect long-term stability?

CONCLUSIONS AND IMPLICATIONS: Overjet was normalized and remained stable long term; there was an open bite in half of the patients. Combined orthodontic and bimaxillary surgical treatment of high-angle Class II patients showed skeletal relapse (greater than or equal to 2 mm) of the mandible in 40 per cent of patients. Mandibular advancement greater than 10 mm increased the risk for relapse. There was no increased risk for dental or skeletal instability associated with a genioplasty in combination with maxillary and mandibular surgery in the treatment of high-angle skeletal Class II malocclusion.
PMID: 31369666 [PubMed - as supplied by publisher]

Source: European Journal of Orthodontics - August 1, 2019 Category: Dentistry Authors: Torgersbråten N, Stenvik A, Espeland L Tags: Eur J Orthod Source Type: research