title: Pulp sensibility and pulp necrosis after Le Fort I osteotomy.
abstract: A longitudinal study comprising 617 teeth in 51 patients was carried out to determine the frequency of pulp necrosis and loss of pulpal sensibility after Le Fort I osteotomy. A negative pulpal sensibility was found in 39 (6%) teeth after an average follow-up period of 28 months, range 11-59 months. Development of pulp necrosis, determined by pulp testing and periapical radiolucency, was only demonstrated in 3 (0.5%) teeth. The extent of horizontal or vertical displacement of the maxilla had no influence on pulpal sensibility. Teeth adjacent to a vertical interdental osteotomy showed a significantly higher frequency of negative reactions compared to the group without an interdental osteotomy (p = 0.002). The canines demonstrated a significantly greater number of teeth with a negative sensibility reaction compared to the other tooth types. A close relationship between the apex of the canines and a wire osteosynthesis was demonstrated to have significant importance for pulpal sensibility.
authors.affiliation: Department of Oral and Maxillofacial Surgery, Royal Dental College, University Hospital, Copenhagen, Denmark.
authors.forename: P
authors.initials: P
authors.lastname: Vedtofte
authors.forename: A
authors.initials: A
authors.lastname: Nattestad
mesh_terms: D000293:Adolescent; D000328:Adult; D003782:Dental Pulp / Q000503:physiopathology*; D003790:Dental Pulp Necrosis / Q000209:etiology* / Q000503:physiopathology; D003791:Dental Pulp Test; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008437:Maxilla / Q000601:surgery*; D008875:Middle Aged; D010027:Osteotomy / Q000009:adverse effects* / Q000379:methods; D012307:Risk Factors