Surgical correction of mandibular prognathism in Norway, 1975-1984: A national survey

Abstract

The estimated need for surgical correction of mandibular prognathism in Norway is 500 patients each year. A questionnaire sent to the maxillofacial surgical units performing orthognathic surgery in Norway showed that in the decade from 1975 to 1985 altogether 1169 patients underwent surgical correction of mandibular prognathism; that is, only 117 patients were treated yearly [corrected]. Extraoral vertical subcondylar osteotomy of the mandibular ramus was the preferred surgical technique, performed on 57% of the patients. Intraoral vertical subcondylar osteotomy of the ramus increased in use and thus seems to be taking over for the extraoral technique. Sagittal split osteotomy was used on 25% of the patients. The different units showed great variation in their preference for the different surgical techniques. Preoperative orthodontics was widely used, on a mean of 77% of the patients. The average hospital stay was 8.5 days, somewhat longer than reported from other countries; however, geographical conditions should be taken into consideration.

Epidemiological analysis of orthognathic surgery in a hospital in Curitiba, Brazil: Review of 195 cases

“…Some investigations are limited to the spectrum of dento-facial deformities 1,2,5,6 . Others only address surgical procedures for the correction of a specific type of deformity [7][8][9] . Others report the prevalence of malocclusion [10][11][12] .…”

Surgically treated for mandibular prognathism

“…Severe mandibular prognathism requiring combined orthodontic and surgical treatment is estimated to occur in 1% of the Norwegian population (1). This skew distribution was probably due to genetic factors.…”

“…In an earlier published report the age and sex distribution, surgical techniques, and duration of hospital stay were discussed (1). In an earlier published report the age and sex distribution, surgical techniques, and duration of hospital stay were discussed (1).…”