Temporomandibular joint symptoms in orthognathic surgery.
Pre and postoperative TMJ-symptoms were observed in the various dentofacial deformities of 480 patients operated on because of a dysgnathia. Preoperative TMJ-symptoms were seen in 16.2% of the 480 patients. After surgery 66% of the preoperatively symptomatic patients reported fewer or no TMJ-symptoms. On the other hand 11.5% of preoperatively asymptomatic patients developed TMJ-symptoms after surgery. Although not statistically proven, a tendency was seen to more TMJ-symptoms in low and normal angle patients in comparison with high angle patients. The chance is high, however, that TMJ-symptoms in low and normal angle mandibular retrognathism patients will improve after surgery. The chance of developing TMJ-symptoms in high angle, absolute mandibular retrognathism patients, operated on by means of bimaxillary surgery, is considerable.
Kerstens
H C
HC
Department of Oral and Maxillofacial Surgery, Free University Hospital, Amsterdam, The Netherlands.
Tuinzing
D B
DB
van der Kwast
W A
WA
D015331:Cohort Studies; D006801:Humans; D008310:Malocclusion / Q000150:complications / Q000601:surgery*; D010027:Osteotomy / Q000009:adverse effects / Q000379:methods; D011378:Prognathism / Q000150:complications / Q000601:surgery*; D063173:Retrognathia / Q000150:complications / Q000601:surgery*; D013706:Temporomandibular Joint Dysfunction Syndrome / Q000453:epidemiology* / Q000209:etiology / Q000628:therapy