Effect Of Different Filling Materials In Combination With Intraradicular Posts On The Resistance To Fracture Of Weakened Roots.

dc.creatorMarchi, G M
dc.creatorPaulillo, L A M S
dc.creatorPimenta, L A F
dc.creatorDe Lima, F A P
dc.date2003-Jun
dc.date2015-11-27T12:52:10Z
dc.date2015-11-27T12:52:10Z
dc.date.accessioned2018-03-29T00:57:31Z
dc.date.available2018-03-29T00:57:31Z
dc.identifierJournal Of Oral Rehabilitation. v. 30, n. 6, p. 623-9, 2003-Jun.
dc.identifier0305-182X
dc.identifier
dc.identifierhttp://www.ncbi.nlm.nih.gov/pubmed/12787460
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/195404
dc.identifier12787460
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1295637
dc.descriptionThe preservation and restoration of severely weakened pulpless teeth is a difficult and relatively unpredictable procedure. This study evaluated the resistance to fracture of experimentally weakened bovine roots internally reconstructed with different filling materials in combination with prefabricated post compared with restored roots that were relatively intact. The roots of 75 mandibular bovine incisors with similar bulks were selected. Of these, 60 were internally prepared to standardized dimensions, thereby simulating weakness. All roots were filled with different restorative materials. The specimens were submitted to the fracture resistance testing with the application of a tangential compressive loading at an angle of 135 degrees in relation to the long axes of the roots. Results indicated statistically significant differences in relation to the root conditions. Weakened roots were less resistant to fracture than were controls. The roots restored with the resin cement demonstrated the lowest fracture resistance values, but statistically significant differences were observed only when compared with those restored by the resin-modified glass-ionomer cement. Resin-modified glass-ionomer cement, polyacid-modified resin composite and resin composite behaved similarly without statistically significant differences among them. None of the materials evaluated were capable of achieving the fracture resistance recorded for unweakened controls.
dc.description30
dc.description623-9
dc.languageeng
dc.relationJournal Of Oral Rehabilitation
dc.relationJ Oral Rehabil
dc.rightsfechado
dc.rights
dc.sourcePubMed
dc.subjectAnalysis Of Variance
dc.subjectAnimals
dc.subjectCattle
dc.subjectDental Stress Analysis
dc.subjectGlass Ionomer Cements
dc.subjectResin Cements
dc.subjectTooth Fractures
dc.subjectTooth Root
dc.titleEffect Of Different Filling Materials In Combination With Intraradicular Posts On The Resistance To Fracture Of Weakened Roots.
dc.typeArtículos de revistas


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