The in vitro effect of pulpal pressure and luting agent on tensile bond strength of complete cast crowns

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dc.contributor.authorOzturk, AN
dc.contributor.authorBelli, S
dc.contributor.authorEskitascioglu, G
dc.date.accessioned2020-03-26T16:55:34Z
dc.date.available2020-03-26T16:55:34Z
dc.date.issued2004
dc.departmentSelçuk Üniversitesien_US
dc.description.abstractStatement of problem. The degree to which pulpal pressure may affect bond strength of complete cast crowns is unknown. Purpose. The aim of this in vitro study was to evaluate the effect of simulated pulpal pressure on the tensile bond strength of complete cast crowns luted with 2 different cements. Material and methods. Forty-eight human mandibular canine teeth were cleaned and stored in saline solution. The crowns were prepared by I investigator, and standardization of the preparation was accomplished by fixing a dental handpiece in a parallelometer. Uniform grooves, 0.5 mm in depth, were prepared with burs with depth guides. The complete crowns were prepared with a 0.5-mm shoulder margin. Teeth were randomly divided into 2 groups of 24 teeth each (Group I and Group 11). In Group 1, bonding and tensile test procedures of the teeth were carried out under simulated pulpal pressure (15 cm of saline solution). In Group 11, simulated pulpal pressure was not used. The roots were removed I mm below the cementoenamel junction to create direct communication with the pulp chamber. The remaining pulpal tissues were carefully removed, and crowns were embedded in acrylic resin. The acrylic resin was then penetrated by a stainless steel tube that connected the pulp chamber and the barrel of a disposable plastic 5-ml syringe. The pulp chambers were filled with physiological saline solution under elevated pressure to locate the area of greatest permeability on the dentinal surface. Crowns were cast (Co-Cr alloy) with a 20-mm bar to allow testing of the bond strength. Each of the 2 groups were further divided into 2 luting cement groups of 12 each (Group 1, A and 13, and Group 11, A and B). Group IA/IIA and Group IB/IIB specimens were luted with a polycarboxylate luting cement (Poly-F Plus) and an adhesive luting cement (Superbond C&B), respectively. After storage in distilled water for 24 hours, all specimens were subjected to a tensile bond test in a universal testing machine at a crosshead speed of 0.5 mm/min until failure. The maximum load at fracture (Newton) was recorded. The results were then evaluated with 2-way analysis of variance and Tukey's honestly significant difference tests (alpha = .05). Results. Simulated pulpal pressure increased the bond strength of cast complete crowns cemented with all adhesive luting agent (P = .01). No significant difference was found in the bond strength of complete cast crowns cemented with polycarboxylate cement with or without pupal pressure. Superbond C&B adhesive luting agent showed significantly higher bond strength values for Group 1 (388.9 +/- 32.7) and Group 11 (300.9 +/- 66.8), when compared with polycarboxylate cement for Group 1 (221.3 +/- 17.3) and Group 11 (186.8 +/- 38.5) (P = .001). Conclusion. Simulated pulpal pressure had a positive effect on the retention of complete cast crowns when cemented with Superbond C&B adhesive luting agent. Superbond C&B significantly increased the retention of crowns in either the presence or absence of pulpal pressure.en_US
dc.identifier.doi10.1016/j.prosdent.2004.01.003en_US
dc.identifier.endpage257en_US
dc.identifier.issn0022-3913en_US
dc.identifier.issn1097-6841en_US
dc.identifier.issue3en_US
dc.identifier.pmid15060495en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage253en_US
dc.identifier.urihttps://dx.doi.org/10.1016/j.prosdent.2004.01.003
dc.identifier.urihttps://hdl.handle.net/20.500.12395/19245
dc.identifier.volume91en_US
dc.identifier.wosWOS:000220582300011en_US
dc.identifier.wosqualityQ4en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherMOSBY-ELSEVIERen_US
dc.relation.ispartofJOURNAL OF PROSTHETIC DENTISTRYen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.selcuk20240510_oaigen_US
dc.titleThe in vitro effect of pulpal pressure and luting agent on tensile bond strength of complete cast crownsen_US
dc.typeArticleen_US

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