Conventional dual-cure versus self-adhesive resin cements in dentin bond integrity
During post preparation, the root canal is exposed to the oral cavity, and endodontic treatment may fail because of coronal leakage, bacterial infection and sealing inability of the luting cement. OBJECTIVE: this study quantified the interfacial continuity produced with conventional dual-cure and se...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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University of São Paulo
2011-08-01
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| Series: | Journal of Applied Oral Science |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572011000400011&lng=en&tlng=en |
| _version_ | 1819056758661840896 |
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| author | Renata Andreza Talaveira da Silva Margareth Coutinho Pedro Igor Cardozo Larissa Alves da Silva José Roberto Zorzatto |
| author_facet | Renata Andreza Talaveira da Silva Margareth Coutinho Pedro Igor Cardozo Larissa Alves da Silva José Roberto Zorzatto |
| author_sort | Renata Andreza Talaveira da Silva |
| collection | DOAJ |
| description | During post preparation, the root canal is exposed to the oral cavity, and endodontic treatment may fail because of coronal leakage, bacterial infection and sealing inability of the luting cement. OBJECTIVE: this study quantified the interfacial continuity produced with conventional dual-cure and self-adhesive resin cements in the cervical (C), medium (M) and apical (A) thirds of the root. MATERIAL AND METHODS: Forty single-rooted human teeth were restored using Reforpost # 01 conical glass-fiber posts and different materials (N=10 per group): group AC=Adper™ ScotchBond™ Multi-purpose Plus + AllCem; group ARC=Adper™ ScotchBond™ Multi-purpose Plus + RelyX ARC; group U100=RelyX U100; and group MXC=Maxcem Elite. After being kept in 100% humidity at 37°C for 72 hours, the samples were sectioned parallel to their longitudinal axis and positive epoxy resin replicas were made. The scanning electron micrographs of each third section of the teeth were combined using Image Analyst software and measured with AutoCAD-2002. We obtained percentage values of the interfacial continuity. RESULTS: Interfacial continuity was similar in the apical, medium and cervical thirds of the roots within the groups (Friedman test, p>0.05). Comparison of the different cements in a same root third showed that interfacial continuity was lower in MXC (C=45.5%; M=48.5%; A=47.3%) than in AC (C=85.9%, M=81.8% and A=76.0%), ARC (C=83.8%, M=82.4% and A=75.0%) and U100 (C=84.1%, M=82.4% and A=77.3%) (Kruskal-Wallis test, p<0.05). CONCLUSIONS: Allcem, Rely X ARC and U100 provide the best cementation; cementation was similar among root portions; in practical terms, U100 is the best resin because it combines good cementation and easy application and none of the cements provides complete interfacial continuity. |
| first_indexed | 2024-12-21T13:28:30Z |
| format | Article |
| id | doaj.art-13581e2e2236438b8afde81e97173041 |
| institution | Directory Open Access Journal |
| issn | 1678-7765 |
| language | English |
| last_indexed | 2024-12-21T13:28:30Z |
| publishDate | 2011-08-01 |
| publisher | University of São Paulo |
| record_format | Article |
| series | Journal of Applied Oral Science |
| spelling | doaj.art-13581e2e2236438b8afde81e971730412022-12-21T19:02:23ZengUniversity of São PauloJournal of Applied Oral Science1678-77652011-08-01194355362S1678-77572011000400011Conventional dual-cure versus self-adhesive resin cements in dentin bond integrityRenata Andreza Talaveira da Silva0Margareth Coutinho1Pedro Igor Cardozo2Larissa Alves da Silva3José Roberto Zorzatto4Universidade Federal de Mato Grosso do SulUniversidade Federal de Mato Grosso do SulUniversidade Federal de Mato Grosso do SulUniversidade Federal de Mato Grosso do SulUniversidade Federal de Mato Grosso do SulDuring post preparation, the root canal is exposed to the oral cavity, and endodontic treatment may fail because of coronal leakage, bacterial infection and sealing inability of the luting cement. OBJECTIVE: this study quantified the interfacial continuity produced with conventional dual-cure and self-adhesive resin cements in the cervical (C), medium (M) and apical (A) thirds of the root. MATERIAL AND METHODS: Forty single-rooted human teeth were restored using Reforpost # 01 conical glass-fiber posts and different materials (N=10 per group): group AC=Adper™ ScotchBond™ Multi-purpose Plus + AllCem; group ARC=Adper™ ScotchBond™ Multi-purpose Plus + RelyX ARC; group U100=RelyX U100; and group MXC=Maxcem Elite. After being kept in 100% humidity at 37°C for 72 hours, the samples were sectioned parallel to their longitudinal axis and positive epoxy resin replicas were made. The scanning electron micrographs of each third section of the teeth were combined using Image Analyst software and measured with AutoCAD-2002. We obtained percentage values of the interfacial continuity. RESULTS: Interfacial continuity was similar in the apical, medium and cervical thirds of the roots within the groups (Friedman test, p>0.05). Comparison of the different cements in a same root third showed that interfacial continuity was lower in MXC (C=45.5%; M=48.5%; A=47.3%) than in AC (C=85.9%, M=81.8% and A=76.0%), ARC (C=83.8%, M=82.4% and A=75.0%) and U100 (C=84.1%, M=82.4% and A=77.3%) (Kruskal-Wallis test, p<0.05). CONCLUSIONS: Allcem, Rely X ARC and U100 provide the best cementation; cementation was similar among root portions; in practical terms, U100 is the best resin because it combines good cementation and easy application and none of the cements provides complete interfacial continuity.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572011000400011&lng=en&tlng=enPost and core techniqueResin cementsDental marginal adaptationDentinbonding agents |
| spellingShingle | Renata Andreza Talaveira da Silva Margareth Coutinho Pedro Igor Cardozo Larissa Alves da Silva José Roberto Zorzatto Conventional dual-cure versus self-adhesive resin cements in dentin bond integrity Journal of Applied Oral Science Post and core technique Resin cements Dental marginal adaptation Dentinbonding agents |
| title | Conventional dual-cure versus self-adhesive resin cements in dentin bond integrity |
| title_full | Conventional dual-cure versus self-adhesive resin cements in dentin bond integrity |
| title_fullStr | Conventional dual-cure versus self-adhesive resin cements in dentin bond integrity |
| title_full_unstemmed | Conventional dual-cure versus self-adhesive resin cements in dentin bond integrity |
| title_short | Conventional dual-cure versus self-adhesive resin cements in dentin bond integrity |
| title_sort | conventional dual cure versus self adhesive resin cements in dentin bond integrity |
| topic | Post and core technique Resin cements Dental marginal adaptation Dentinbonding agents |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572011000400011&lng=en&tlng=en |
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