ABSTRACT
@#The success of orthognathic surgery depends not only on surgical techniques but also on accurate and scientific surgical design and planning. The adoption of digital surgery has created a paradigm shift in surgical planning. However, compared with traditional methods, digital surgery-assisted planning of an orthognathic operation differs fundamentally from planning using traditional methods, including the elimination of plaster dental model surgery and of the increase in splint design accuracy. This article focuses on the application of digital virtual tools for pre-operative design of orthognathic surgery to provide a virtual surgical procedure reference for surgeons who need to incorporate digital surgery into orthognathic surgery.
ABSTRACT
Objective@# The present study was designed to evaluate the use of inverted-L osteotomy of ramus combined with iliac bone graft for the treatment of mandibular hypoplasia inadult patients.@*Methods@#Intraoral or extraoralinverted-L osteotomy of ramus and iliac crest bone grafting were used for the treatment of mandibular hypoplasia in 11 adult patients (aged 19 to 29 years) from 2010 to 2016. Data were collected from the patients’ records, photographs andradiographs.@*Results @#The height and width of the mandibular ramus were significantly augmented by inverted-L osteotomy and iliac crest bone grafting with minimal complications in all patients, resulting in remarkable improvements both in facial appearance and occlusion.@*Conclusions @#Our preliminary results showed that the inverted-L osteotomy of ramus and iliac crest bone grafting is safe and effective, and should be considered as a good alternative for the patients with mandibular hypoplasia.