title: Clinical and radiographic assessment of various predictors for healing outcome 1 year after periapical surgery.
abstract: This clinical study prospectively evaluated the influence of various predictors on healing outcome 1 year after periapical surgery. The study cohort included 194 teeth in an equal number of patients. Three teeth were lost for the follow-up (1.5% drop-out rate). Clinical and radiographic measures were used to determine the healing outcome. For statistical analysis, results were dichotomized (healed versus nonhealed). The overall success rate was 83.8% (healed cases). The only individual predictors to prove significant for the outcome were pain at initial examination (p=0.030) and other clinical signs or symptoms at initial examination (p=0.042), meaning that such teeth had lower healing rates 1 year after periapical surgery compared with teeth without such signs or symptoms. Logistic regression revealed that pain at initial examination (odds ratio=2.59, confidence interval=1.2-5.6, p=0.04) was the only predictor reaching significance. Several predictors almost reached statistical significance: lesion size (p=0.06), retrofilling material (p=0.06), and postoperative healing course (p=0.06).
authors.affiliation: Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Berne, Berne, Switzerland, and Deparatment of Oral & Maxillofacial Surgery, Copenhagen University Hospital, Glostrup, Denmark. thomas.vonarx@zmk.unibe.ch
authors.forename: Thomas
authors.initials: T
authors.lastname: von Arx
authors.forename: Simon Storgård
authors.initials: SS
authors.lastname: Jensen
authors.forename: Stefan
authors.initials: S
authors.lastname: Hänni
mesh_terms: D000328:Adult; D016301:Alveolar Bone Loss / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D001047:Apicoectomy; D019232:Dental Restoration Failure; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D016015:Logistic Models; D008297:Male; D008875:Middle Aged; D010485:Periapical Periodontitis / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery*; D011379:Prognosis; D011446:Prospective Studies; D011859:Radiography; D012184:Retrograde Obturation / Q000379:methods; D012387:Root Canal Filling Materials; D014098:Toothache; D014945:Wound Healing
chemical_list: D012387:Root Canal Filling Materials