The skeletal stability after maxillo-mandibular osteotomy with a “physiological positioning strategy”

Author(s): Ohba S, Nakao N, Nakatani Y, Kawasaki T, Minamizato T, et al.

Abstract

The aim of this study was to estimate skeletal and dental stability after maxillomandibular osteotomy with physiological positioning. Ten patients (7 men and 3 women) with skeletal mandibular prognathism were treated by conventional Le Fort I osteotomy for the maxilla and unfixed short lingual osteotomy for the mandible together with physiological positioning. We used cephalometric analysis to evaluate the skeletal and dental stability preoperatively, immediately after maxillomandibular osteotomy, and more than 1 year later. The immediately postoperative measurements for the SNA and the SN-palatal planes were 0.15° (p=0.67) and 1.0° (p=0.17), respectively. The positions of the anterior nasal spine, posterior nasal spine, and A point showed minimal changes 1 year postoperatively. The postoperative difference for SNB was 0.76° (p=0.04). Dental stability was apparent postoperatively. We conclude that reliable stability of both the maxilla and the mandible was achieved after maxillomandibular osteotomy with physiological positioning in patients with mandibular prognathism.

Similar Articles

Three-year stability of open-bite correction by 1-piece maxillary osteotomy

Author(s): Espeland L, Dowling PA, Mobarak KA, Stenvik A

Long-term stability of anterior open-bite closure with bilateral sagittal split osteotomy

Author(s): Fontes AM, Joondeph DR, Bloomquist DS, Greenlee GM, Wallen TR, et al.

Temporomandibular disorders and orthognathic surgery

Author(s): Cascone P, di Paolo C, Leonardi R, Pedullà E

Changes in temporomandibular joint dysfunction after orthognathic surgery

Author(s): Wolford LM, Reiche-Fischel O, Mehra P

Root resorption associated with orthodontic tooth movement: a systematic review

Author(s): Weltman B, Vig KW, Fields HW, Shanker S, Kaizar EE

Root damage and repair in patients with temporary skeletal anchorage devices

Author(s): Ahmed VKS, Rooban T, Krishnaswamy NR, Mani K, Kalladka G

Gummy smile and facial profile correction using miniscrew anchorage

Author(s): Kaku M, Kojima S, Sumi H, Koseki H, Abedini S, et al.

Multiloop edgewise archwire in the treatment of a patient with an anterior open bite and a long face

Author(s): Ribeiro GL, Regis S Jr, da Cunha Tde M, Sabatoski MA, Guariza-Filho O, et al.