Influence of storage times on bond strength of resin cements to root canal

Autor: José Roberto Cury Saad, Renato Souza Queiroz, Matheus Coelho Bandeca, Omar El-Mowafy, M. R. Nadalin, Amr Shebl Kassem, Victor Rene Grover Clavijo
Přispěvatelé: Universidade Estadual Paulista (Unesp), University of Toronto, Suez Canal University, University of Ribeirão Preto
Jazyk: angličtina
Rok vydání: 2010
Předmět:
Hydraulic structures
Polymers
Root canal
Glass fiber
dental polymers
Statistical tests
General Materials Science
Curing
Composite material
Curing (chemistry)
chemistry.chemical_classification
Bond strength
Bond strength (materials)
light curing
Polymer
Quartz
Infuence
Quartz tungsten halogen
Condensed Matter Physics
Cementation (geology)
Statistical differences
adhesion
medicine.anatomical_structure
Distilled water
Mechanics of Materials
polymerization
Cements
Regression analysis
Adhesive systems
Resins
Materials science
Mean values
Failure resistances
Kuraray
Root canals
Tungsten
Cementing (shafts)
medicine
lcsh:TA401-492
Resin cement
Oxide minerals
Mechanical Engineering
technology
industry
and agriculture
Self-adhesive
chemistry
Canals
lcsh:Materials of engineering and construction. Mechanics of materials
Adhesive
Zdroj: Materials Research v.13 n.1 2010
Materials research (São Carlos. Online)
Universidade Federal de São Carlos (UFSCAR)
instacron:ABM ABC ABPOL
Web of Science
Repositório Institucional da UNESP
Universidade Estadual Paulista (UNESP)
instacron:UNESP
Materials Research, Volume: 13, Issue: 1, Pages: 25-28, Published: MAR 2010
Materials Research, Vol 13, Iss 1, Pp 25-28 (2010)
Popis: Made available in DSpace on 2013-08-12T18:59:07Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-01-01 Made available in DSpace on 2013-09-30T18:33:41Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-01-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:47:08Z No. of bitstreams: 0 Made available in DSpace on 2014-05-20T13:47:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-01-01 Item merged in doublecheck by Felipe Arakaki (fe.arakaki@gmail.com) on 2015-11-17T17:56:39Z Item was identical to item(s): 16374, 71010 at handle(s): http://hdl.handle.net/11449/16738, http://hdl.handle.net/11449/71528 Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) The resin cements are responsible to retention of the indirect materials decreasing marginal leakage, increasing failure resistance compared with conventional cementation. The cementation within root canal is very hard due unfavorable conditions regarding the application of adhesive techniques caused by inadequate access. Therefore, considering the possibility to decrease steps of cementation, this study was performed to evaluate the bond strength of self-adhesive resin cement (RelyX (TM) U100, 3M ESPE) and resin cement combined with self-ecthing adhesive system (Panavia (R) F 2.0, Kuraray) light-cured with Quartz Tungsten Halogen (QTH) following storage at 37 degrees C immediately after light-curing, 24 and 48 hours and 7 days. The root canals were prepared to receive the glass fiber post in the depth of 10 mm, irrigated with 17% EDTA and NaOCl, rinsed with distilled water and dried using paper points. The roots were perpendicularly sectioned into approximately 1 mm thick sections, obtaining ninety-six slices (n = 12). The slices were trimmed using a cylindrical diamond bur in the proximal surfaces until it touched the post and attached into a device, which were mounted on a strength tester (Bisco) and loaded in tension at a speed of 0.5 mm/min until failure occurred at specimens. The analysis of variance (ANOVA) and Tukey's post-hoc tests showed significant statistical differences (P < .05) to all resin cements immediately after light-curing and 24 hours, 48 hours and 7 days. The Panavia (R) F 2.0 showed higher mean values than RelyX (TM) U100 for all storage times, however no different statistically significant was reported (P > .05). The resin cements 24 and 48 hours after light-curing were statistically similar among themselves (P > .05). The both resin cement showed similar bond strength into root canal on different storage times. The highest bond strength values of the resin cements were showed 7 days after curing. Department of Restorative Dentistry Araraquara School of Dentistry University of São Paulo State - UNESP, 1680 Humaitá St., 14801-903 Araraquara - SP Department of Restorative Dentistry Faculty of Dentistry University of Toronto, Toronto, ON M5G 1G6 Crown and Bridge Department Faculty of Dentistry Suez Canal University, Ismailia University of Ribeirão Preto, 2.201 Costábile Romano Ave, Ribeirão Preto - SP Department of Restorative Dentistry Araraquara School of Dentistry University of São Paulo State - UNESP, 1680 Humaitá St., 14801-903 Araraquara - SP
Databáze: OpenAIRE
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