Influence of infected root dentin on the bond strength of a self-adhesive resin cement
Aim: The aim of this study was to determine the bond strength (BS) of a self-adhesive resin cement to the contaminated root dentin. Materials and Methods: The crown and apical third of twenty single-rooted teeth were removed. The root canals were flared and 1-mm-thick root sections were obtained. Th...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2018-01-01
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| Series: | Contemporary Clinical Dentistry |
| Subjects: | |
| Online Access: | http://www.contempclindent.org/article.asp?issn=0976-237X;year=2018;volume=9;issue=1;spage=26;epage=30;aulast=Delai |
| _version_ | 1818937067143430144 |
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| author | Débora Delai Maybell Tedesco Josiane de Almeida Marcelo Carvalho Chain Cleonice da Silveira Teixeira Mara Cristina Santos Felippe Wilson Tadeu Felippe |
| author_facet | Débora Delai Maybell Tedesco Josiane de Almeida Marcelo Carvalho Chain Cleonice da Silveira Teixeira Mara Cristina Santos Felippe Wilson Tadeu Felippe |
| author_sort | Débora Delai |
| collection | DOAJ |
| description | Aim: The aim of this study was to determine the bond strength (BS) of a self-adhesive resin cement to the contaminated root dentin. Materials and Methods: The crown and apical third of twenty single-rooted teeth were removed. The root canals were flared and 1-mm-thick root sections were obtained. The sections were rinsed, dried, and sterilized. The control group (n=20) was composed of one section of each third, which remained immersed in sterile trypticase soy broth (TSB) for 2 months. The other sections comprised the experimental group (n = 40) and were immersed in a suspension of Enterococcus faecalis. The culture medium was changed at every 4 days for 2 months. The sections were rinsed with distilled water, dried, and the root canal space was fi lled with the self-adhesive resin cement RelyX™ U200. After 24 h, the push-out test was performed and the types of interface failure were observed on a stereo microscope. Statistical Analysis: Data were statistically analyzed by the nonparametric Mann–Whitney test (α=5%). Results: A significant reduction was observed in the BS of resin cement to the contaminated dentin compared to the healthy dentin, for both thirds analyzed (P < 0.05). The BS was signifi cantly greater at the cervical third compared to the middle third for specimens in the experimental group (P < 0.05). Adhesive and mixed failures were observed more frequently in specimens contaminated with E. faecalis. Conclusion: Bacterial contamination negatively infl uenced the BS of the self-adhesive resin cement to the root dentin, and there was a predominance of adhesive and mixed failures. |
| first_indexed | 2024-12-20T05:46:04Z |
| format | Article |
| id | doaj.art-ebe2fa20e0c44a58b8b1caa0d1be5dc9 |
| institution | Directory Open Access Journal |
| issn | 0976-237X 0976-2361 |
| language | English |
| last_indexed | 2024-12-20T05:46:04Z |
| publishDate | 2018-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Contemporary Clinical Dentistry |
| spelling | doaj.art-ebe2fa20e0c44a58b8b1caa0d1be5dc92022-12-21T19:51:19ZengWolters Kluwer Medknow PublicationsContemporary Clinical Dentistry0976-237X0976-23612018-01-0191263010.4103/ccd.ccd_683_17Influence of infected root dentin on the bond strength of a self-adhesive resin cementDébora DelaiMaybell TedescoJosiane de AlmeidaMarcelo Carvalho ChainCleonice da Silveira TeixeiraMara Cristina Santos FelippeWilson Tadeu FelippeAim: The aim of this study was to determine the bond strength (BS) of a self-adhesive resin cement to the contaminated root dentin. Materials and Methods: The crown and apical third of twenty single-rooted teeth were removed. The root canals were flared and 1-mm-thick root sections were obtained. The sections were rinsed, dried, and sterilized. The control group (n=20) was composed of one section of each third, which remained immersed in sterile trypticase soy broth (TSB) for 2 months. The other sections comprised the experimental group (n = 40) and were immersed in a suspension of Enterococcus faecalis. The culture medium was changed at every 4 days for 2 months. The sections were rinsed with distilled water, dried, and the root canal space was fi lled with the self-adhesive resin cement RelyX™ U200. After 24 h, the push-out test was performed and the types of interface failure were observed on a stereo microscope. Statistical Analysis: Data were statistically analyzed by the nonparametric Mann–Whitney test (α=5%). Results: A significant reduction was observed in the BS of resin cement to the contaminated dentin compared to the healthy dentin, for both thirds analyzed (P < 0.05). The BS was signifi cantly greater at the cervical third compared to the middle third for specimens in the experimental group (P < 0.05). Adhesive and mixed failures were observed more frequently in specimens contaminated with E. faecalis. Conclusion: Bacterial contamination negatively infl uenced the BS of the self-adhesive resin cement to the root dentin, and there was a predominance of adhesive and mixed failures.http://www.contempclindent.org/article.asp?issn=0976-237X;year=2018;volume=9;issue=1;spage=26;epage=30;aulast=DelaiAdhesive systemsbond strengthcontaminated dentinpush-out test |
| spellingShingle | Débora Delai Maybell Tedesco Josiane de Almeida Marcelo Carvalho Chain Cleonice da Silveira Teixeira Mara Cristina Santos Felippe Wilson Tadeu Felippe Influence of infected root dentin on the bond strength of a self-adhesive resin cement Contemporary Clinical Dentistry Adhesive systems bond strength contaminated dentin push-out test |
| title | Influence of infected root dentin on the bond strength of a self-adhesive resin cement |
| title_full | Influence of infected root dentin on the bond strength of a self-adhesive resin cement |
| title_fullStr | Influence of infected root dentin on the bond strength of a self-adhesive resin cement |
| title_full_unstemmed | Influence of infected root dentin on the bond strength of a self-adhesive resin cement |
| title_short | Influence of infected root dentin on the bond strength of a self-adhesive resin cement |
| title_sort | influence of infected root dentin on the bond strength of a self adhesive resin cement |
| topic | Adhesive systems bond strength contaminated dentin push-out test |
| url | http://www.contempclindent.org/article.asp?issn=0976-237X;year=2018;volume=9;issue=1;spage=26;epage=30;aulast=Delai |
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