Methods of experimental induction of periapical inflammation. Microbiological and radiographic evaluation

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorTanomaru-Filho, M.
dc.creatorPoliseli-Neto, A.
dc.creatorLeonardo, M. R.
dc.creatorSilva, L. A B
dc.creatorTanomaru, Juliane Maria Guerreiro
dc.creatorIto, I. Y.
dc.date2014-05-27T11:21:22Z
dc.date2016-10-25T18:20:52Z
dc.date2014-05-27T11:21:22Z
dc.date2016-10-25T18:20:52Z
dc.date2005-07-01
dc.date.accessioned2017-04-06T01:13:43Z
dc.date.available2017-04-06T01:13:43Z
dc.identifierInternational Endodontic Journal, v. 38, n. 7, p. 477-482, 2005.
dc.identifier0143-2885
dc.identifierhttp://hdl.handle.net/11449/68293
dc.identifierhttp://acervodigital.unesp.br/handle/11449/68293
dc.identifier10.1111/j.1365-2591.2005.00980.x
dc.identifierWOS:000229635700009
dc.identifier2-s2.0-20744451373
dc.identifierhttp://dx.doi.org/10.1111/j.1365-2591.2005.00980.x
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/889652
dc.descriptionAim: To evaluate the influence of coronal filling and apical perforation on the induction of periapical inflammation. Methodology: Fifty-eight root canals in the teeth of dogs were divided into four groups. Groups I and II: root canals were exposed for 180 days; groups III and IV: root canals were exposed for 7 days and then the access cavity filled for 53 days. The root apices of groups I and III were perforated after the coronal opening, whilst those of groups II and IV remained intact. Standard radiographs were taken before and after the experimental periods. Digital images of the radiographs were created and then analysed by three examiners. After induction of periapical inflammation, the root canal contents were collected using paper points. Microbiologic evaluation of the type of microorganism was carried out by culture in different growth media. The radiographic and microbiologic data were statistically analysed using ANOVA at a 5% significance level. Results: There were a greater total number of microorganisms in groups I and II (P < 0.05). The number of anaerobes was greater than the number of aerobes (P < 0.05). The size of the periapical radiolucencies were not significantly different between the experimental groups. Conclusions: The different methods analysed induced similar areas of periapical radiolucency in dogs with predominantly anaerobic bacteria. However, the time required for induction was less when the method with coronal filling was used. © 2005 International Endodontic Journal.
dc.languageeng
dc.relationInternational Endodontic Journal
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectDental radiograph
dc.subjectEndodontics
dc.subjectMicroorganism
dc.subjectPeriapical inflammation
dc.subjectaerobic bacteria
dc.subjectanaerobic bacterium
dc.subjectanimal model
dc.subjectanimal tissue
dc.subjectbacterium culture
dc.subjectcontrolled study
dc.subjectdog
dc.subjectinflammation
dc.subjectmicrobiological examination
dc.subjectnonhuman
dc.subjectradiodiagnosis
dc.subjectstatistical analysis
dc.subjectstatistical significance
dc.subjecttooth filling
dc.subjecttooth periapical disease
dc.subjecttooth root
dc.subjectAnalysis of Variance
dc.subjectAnimals
dc.subjectBacteria, Anaerobic
dc.subjectBacteriological Techniques
dc.subjectColony Count, Microbial
dc.subjectDental Pulp Cavity
dc.subjectDental Pulp Necrosis
dc.subjectDental Research
dc.subjectDogs
dc.subjectPeriapical Periodontitis
dc.subjectTime Factors
dc.subjectTooth, Nonvital
dc.titleMethods of experimental induction of periapical inflammation. Microbiological and radiographic evaluation
dc.typeOtro


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