dc.contributorSagrado Coração University
dc.contributorUniversidade Estadual Paulista (UNESP)
dc.date.accessioned2022-04-29T02:43:11Z
dc.date.accessioned2022-12-20T02:17:10Z
dc.date.available2022-04-29T02:43:11Z
dc.date.available2022-12-20T02:17:10Z
dc.date.created2022-04-29T02:43:11Z
dc.date.issued2011-01-01
dc.identifierJournal of Applied Oral Science, v. 19, n. 6, p. 648-654, 2011.
dc.identifier1678-7765
dc.identifier1678-7757
dc.identifierhttp://hdl.handle.net/11449/226677
dc.identifier10.1590/S1678-77572011000600018
dc.identifier2-s2.0-84855789990
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/5406811
dc.description.abstractObjective: This study evaluated, in vitro, the fracture resistance of human non-vital teeth restored with different reconstruction protocols. Material and methods: Forty human anterior roots of similar shape and dimensions were assigned to four groups (n=10), according to the root reconstruction protocol: Group I (control): non-weakened roots with glass fiber post; Group II: roots with composite resin by incremental technique and glass fiber post; Group III: roots with accessory glass fiber posts and glass fiber post; and Group IV: roots with anatomic glass fiber post technique. Following post cementation and core reconstruction, the roots were embedded in chemically activated acrylic resin and submitted to fracture resistance testing, with a compressive load at an angle of 45° in relation to the long axis of the root at a speed of 0.5 mm/min until fracture. All data were statistically analyzed with bilateral Dunnett's test (α=0.05). Results: Group I presented higher mean values of fracture resistance when compared with the three experimental groups, which, in turn, presented similar resistance to fracture among each other. None of the techniques of root reconstruction with intraradicular posts improved root strength, and the incremental technique was suggested as being the most recommendable, since the type of fracture that occurred allowed the remaining dental structure to be repaired. Conclusion: The results of this in vitro study suggest that the healthy remaining radicular dentin is more important to increase fracture resistance than the root reconstruction protocol.
dc.languageeng
dc.relationJournal of Applied Oral Science
dc.sourceScopus
dc.subjectCompressive strength
dc.subjectNonvital tooth
dc.subjectPermanent dental restoration
dc.subjectPost and core technique
dc.subjectTooth fractures
dc.subjectTooth root
dc.titleResistance to compression of weakened roots subjected to different root reconstruction protocols
dc.typeArtículos de revistas


Este ítem pertenece a la siguiente institución