title: Influence of the length of instrumentation and canal obturation on the success of endodontic therapy. A 10-year clinical follow-up.
abstract: OBJECTIVE
  To clinically test the periapical healing of the method of recurrent electronic root canal measurement and the method of root canal obturation by the guttapercha-eucapercha method.
  
  
  METHODS
  During 10 years of endodontic practice of the first author, endodontic interventions were performed on approximately 4500 patients, aged 12-75 years. The success of therapy was followed-up in 257 teeth with diagnosis K04.0 to K04.5 (according to the X international classification of diseases) for whom a preoperative and control radiograph during the investigation period existed. Root canal preparation started with the "crown-down pressureless technique" and proceeded with the method of recurrent electronic root canal measurement. Obturation was done by the guttapercha-eucapercha method up to the apical constriction.
  
  
  RESULTS
  The result of therapy success was approximately 95% overall (t-test, ANOVA); for the diagnosis: necrosis and pulp gangrene (K04.1): 64%; for the acute apical periodontitis (K04.4): 88%; for the inflamed pulp (K04.0) and pulp degeneration (K04.2) 95%; chronic apical periodontitis (K04.5): 98%, and abnormally formed hard tissue in the pulp (K04.3):100%.
authors.affiliation: Department of Dental Pathology, Medical Faculty, University of Rijeka, Croatia.
authors.forename: Tomislav
authors.initials: T
authors.lastname: Tamarut
authors.forename: Maja
authors.initials: M
authors.lastname: Kovacevic
authors.forename: Snejezana
authors.initials: S
authors.lastname: Glavicic
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D002648:Child; D003786:Dental Pulp Cavity / Q000033:anatomy & histology; D019232:Dental Restoration Failure; D005500:Follow-Up Studies; D006801:Humans; D008875:Middle Aged; D010485:Periapical Periodontitis / Q000628:therapy*; D011671:Pulpitis / Q000628:therapy*; D012389:Root Canal Obturation / Q000295:instrumentation / Q000379:methods*; D012390:Root Canal Therapy / Q000295:instrumentation / Q000379:methods; D016896:Treatment Outcome