Influence of storage times on bond strength of resin cements to root canal
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 cause...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)
2010-03-01
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| Series: | Materials Research |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000100007 |
| _version_ | 1811234672269590528 |
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| author | Matheus Coêlho Bandéca Amr Shebl Kassem Omar El-Mowafy Michele Regina Nadalin Renato Souza Queiroz Victor Rene Grover Clavijo José Roberto Cury Saad |
| author_facet | Matheus Coêlho Bandéca Amr Shebl Kassem Omar El-Mowafy Michele Regina Nadalin Renato Souza Queiroz Victor Rene Grover Clavijo José Roberto Cury Saad |
| author_sort | Matheus Coêlho Bandéca |
| collection | DOAJ |
| description | 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® F 2.0, Kuraray) light-cured with Quartz Tungsten Halogen (QTH) following storage at 37 °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® 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. |
| first_indexed | 2024-04-12T11:40:38Z |
| format | Article |
| id | doaj.art-4b3ad49dc5f244b68268e5999dd3adea |
| institution | Directory Open Access Journal |
| issn | 1516-1439 |
| language | English |
| last_indexed | 2024-04-12T11:40:38Z |
| publishDate | 2010-03-01 |
| publisher | Associação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol) |
| record_format | Article |
| series | Materials Research |
| spelling | doaj.art-4b3ad49dc5f244b68268e5999dd3adea2022-12-22T03:34:40ZengAssociação Brasileira de Metalurgia e Materiais (ABM); Associação Brasileira de Cerâmica (ABC); Associação Brasileira de Polímeros (ABPol)Materials Research1516-14392010-03-01131252810.1590/S1516-14392010000100007Influence of storage times on bond strength of resin cements to root canalMatheus Coêlho BandécaAmr Shebl KassemOmar El-MowafyMichele Regina NadalinRenato Souza QueirozVictor Rene Grover ClavijoJosé Roberto Cury SaadThe 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® F 2.0, Kuraray) light-cured with Quartz Tungsten Halogen (QTH) following storage at 37 °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® 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000100007adhesiondental polymerslight curingpolymerization |
| spellingShingle | Matheus Coêlho Bandéca Amr Shebl Kassem Omar El-Mowafy Michele Regina Nadalin Renato Souza Queiroz Victor Rene Grover Clavijo José Roberto Cury Saad Influence of storage times on bond strength of resin cements to root canal Materials Research adhesion dental polymers light curing polymerization |
| title | Influence of storage times on bond strength of resin cements to root canal |
| title_full | Influence of storage times on bond strength of resin cements to root canal |
| title_fullStr | Influence of storage times on bond strength of resin cements to root canal |
| title_full_unstemmed | Influence of storage times on bond strength of resin cements to root canal |
| title_short | Influence of storage times on bond strength of resin cements to root canal |
| title_sort | influence of storage times on bond strength of resin cements to root canal |
| topic | adhesion dental polymers light curing polymerization |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-14392010000100007 |
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