Effect of root canal preparation, type of endodontic post and mechanical cycling on root fracture strength

dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade Federal do Rio Grande do Sul (UFRGS)
dc.contributorUniversidade Federal de Sergipe (UFS)
dc.contributorUniv Bologna
dc.creatorRippe, Marilia Pivetta [UNESP]
dc.creatorSantini, Manuela Favarin
dc.creatorSouza Bier, Carlos Alexandre
dc.creatorBaldissara, Paolo
dc.creatorValandro, Luiz Felipe
dc.date2014-12-03T13:11:11Z
dc.date2014-12-03T13:11:11Z
dc.date2014-05-01
dc.date.accessioned2023-09-09T10:07:26Z
dc.date.available2023-09-09T10:07:26Z
dc.identifierhttp://dx.doi.org/10.1590/1678-775720130051
dc.identifierJournal Of Applied Oral Science. Bauru-sp: Univ Sao Paulo Fac Odontologia Bauru, v. 22, n. 3, p. 165-173, 2014.
dc.identifier1678-7757
dc.identifierhttp://hdl.handle.net/11449/112954
dc.identifier10.1590/1678-775720130051
dc.identifierS1678-77572014000300165
dc.identifierWOS:000337907600005
dc.identifierS1678-77572014000300165.pdf
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8762569
dc.descriptionObjective: To evaluate the impact of the type of root canal preparation, intraradicular post and mechanical cycling on the fracture strength of roots. Material and Methods: Eighty human single rooted teeth were divided into 8 groups according to the instruments used for root canal preparation (manual or rotary instruments), the type of intraradicular post (fiber posts-FRC and cast post and core-CPC) and the use of mechanical cycling (MC) as follows: Manual and FRC; Manual, FRC and MC; Manual and CPC; Manual, CPC and MC; Rotary and FRC; Rotary, FRC and MC; Rotary and CPC; Rotary, CPC and MC. The filling was performed by lateral compactation. All root canals were prepared for a post with a 10 mm length, using the custom # 2 bur of the glass fiber post system. For mechanical cycling, the protocol was applied as follows: an angle of incidence of 45 degrees, 37 degrees C, 88 N, 4 Hz, 2 million pulses. All groups were submitted to fracture strength test in a 45 degrees device with 1 mm/min cross-head speed until failure occurred. Results: The 3-way ANOVA showed that the root canal preparation strategy (p<0.03) and post type (p<0.0001) affected the fracture strength results, while mechanical cycling (p=0.29) did not. Conclusion: The root canal preparation strategy only influenced the root fracture strength when restoring with a fiber post and mechanical cycling, so it does not seem to be an important factor in this scenario.
dc.descriptionUniv Estadual Paulista, Sao Jos dos Campos Dent Sch, Prosthodont Unit, UNESP, Sao Jose Dos Campos, SP, Brazil
dc.descriptionUniv Fed Rio Grande do Sul, Fac Odontol, Endodont Unit, Porto Alegre, RS, Brazil
dc.descriptionUniv Fed Santa Maria, Fac Odontol, Dept Stomatol, Endodont Unit, BR-97015372 Santa Maria, RS, Brazil
dc.descriptionUniv Bologna, Dept Biomed Sci, Oral Rehabil Unit, Prosthodont Unit, Bologna, Italy
dc.descriptionUniv Fed Santa Maria, Fac Odontol, Dept Restorat Dent, Prosthodont Unit, BR-97015372 Santa Maria, RS, Brazil
dc.descriptionUniv Estadual Paulista, Sao Jos dos Campos Dent Sch, Prosthodont Unit, UNESP, Sao Jose Dos Campos, SP, Brazil
dc.format165-173
dc.languageeng
dc.publisherUniversidade de São Paulo (USP), Faculdade de Odontologia de Bauru
dc.relationJournal of Applied Oral Science
dc.relation1.709
dc.relation0,645
dc.rightsAcesso aberto
dc.sourceWeb of Science
dc.subjectPost and core
dc.subjectRoot canal preparation
dc.subjectAging
dc.titleEffect of root canal preparation, type of endodontic post and mechanical cycling on root fracture strength
dc.typeArtigo


Este ítem pertenece a la siguiente institución