In Vitro Assessment of Single-Retainer Tooth-Colored Adhesively Fixed Partial Dentures for Posterior Teeth
The purpose of this paper was to investigate, by means of marginal adaptation and fracture strength, three different types of single retainer posterior fixed partial dentures (FPDs) for the replacement of a missing premolar. Two-unit cantilever FPDs were fabricated from composite resin, feldspathic...
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| Format: | Article |
| Language: | English |
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Wiley
2010-01-01
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| Series: | International Journal of Dentistry |
| Online Access: | http://dx.doi.org/10.1155/2010/101095 |
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| author | Tissiana Bortolotto Carlo Monaco Ioana Onisor Ivo Krejci |
| author_facet | Tissiana Bortolotto Carlo Monaco Ioana Onisor Ivo Krejci |
| author_sort | Tissiana Bortolotto |
| collection | DOAJ |
| description | The purpose of this paper was to investigate, by means of marginal adaptation and fracture strength, three different types of single retainer posterior fixed partial dentures (FPDs) for the replacement of a missing premolar. Two-unit cantilever FPDs were fabricated from composite resin, feldspathic porcelain, and fiber-reinforced composite resin. After luting procedures and margin polishing, all specimens were subjected to a Scanning Electron Microscopic marginal evaluation both prior to and after thermomechanical loading with a custom made chewing simulator comprising both thermal and mechanical loads. The results indicated that the highest score of marginal adaptation, that is, the closest score to 100% of continuous margins, at the tooth-composite resin interface was attained by the feldspathic porcelain group (88.1% median), followed by the fiber-reinforced composite resin group (78.9% median). The worse results were observed in the composite resin group (58.05% median). Fracture strength was higher in feldspathic porcelain (196N median) when compared to resin composite (114.9 N median). All the fixed prostheses made of fiber-reinforced composite resin detached from the abutment teeth before fracturing, suggesting that the adhesive surface's retainer should be increased. |
| format | Article |
| id | doaj-art-9a3aa2ffc16b483a827c10155b7ed8bc |
| institution | OA Journals |
| issn | 1687-8728 1687-8736 |
| language | English |
| publishDate | 2010-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Dentistry |
| spelling | doaj-art-9a3aa2ffc16b483a827c10155b7ed8bc2025-08-20T02:20:15ZengWileyInternational Journal of Dentistry1687-87281687-87362010-01-01201010.1155/2010/101095101095In Vitro Assessment of Single-Retainer Tooth-Colored Adhesively Fixed Partial Dentures for Posterior TeethTissiana Bortolotto0Carlo Monaco1Ioana Onisor2Ivo Krejci3Division of Cariology and Endodontics, School of Dentistry, University of Geneva, 19, Rue Barthélemy-Menn, CH-1205 Geneva, SwitzerlandDepartment of Oral Sciences, Division of Prosthodontics and Maxillofacial Rehabilitation, University of Bologna, Via S. Vitale, 59, 40125 Bologna, ItalyDivision of Cariology and Endodontics, School of Dentistry, University of Geneva, 19, Rue Barthélemy-Menn, CH-1205 Geneva, SwitzerlandDivision of Cariology and Endodontics, School of Dentistry, University of Geneva, 19, Rue Barthélemy-Menn, CH-1205 Geneva, SwitzerlandThe purpose of this paper was to investigate, by means of marginal adaptation and fracture strength, three different types of single retainer posterior fixed partial dentures (FPDs) for the replacement of a missing premolar. Two-unit cantilever FPDs were fabricated from composite resin, feldspathic porcelain, and fiber-reinforced composite resin. After luting procedures and margin polishing, all specimens were subjected to a Scanning Electron Microscopic marginal evaluation both prior to and after thermomechanical loading with a custom made chewing simulator comprising both thermal and mechanical loads. The results indicated that the highest score of marginal adaptation, that is, the closest score to 100% of continuous margins, at the tooth-composite resin interface was attained by the feldspathic porcelain group (88.1% median), followed by the fiber-reinforced composite resin group (78.9% median). The worse results were observed in the composite resin group (58.05% median). Fracture strength was higher in feldspathic porcelain (196N median) when compared to resin composite (114.9 N median). All the fixed prostheses made of fiber-reinforced composite resin detached from the abutment teeth before fracturing, suggesting that the adhesive surface's retainer should be increased.http://dx.doi.org/10.1155/2010/101095 |
| spellingShingle | Tissiana Bortolotto Carlo Monaco Ioana Onisor Ivo Krejci In Vitro Assessment of Single-Retainer Tooth-Colored Adhesively Fixed Partial Dentures for Posterior Teeth International Journal of Dentistry |
| title | In Vitro Assessment of Single-Retainer Tooth-Colored Adhesively Fixed Partial Dentures for Posterior Teeth |
| title_full | In Vitro Assessment of Single-Retainer Tooth-Colored Adhesively Fixed Partial Dentures for Posterior Teeth |
| title_fullStr | In Vitro Assessment of Single-Retainer Tooth-Colored Adhesively Fixed Partial Dentures for Posterior Teeth |
| title_full_unstemmed | In Vitro Assessment of Single-Retainer Tooth-Colored Adhesively Fixed Partial Dentures for Posterior Teeth |
| title_short | In Vitro Assessment of Single-Retainer Tooth-Colored Adhesively Fixed Partial Dentures for Posterior Teeth |
| title_sort | in vitro assessment of single retainer tooth colored adhesively fixed partial dentures for posterior teeth |
| url | http://dx.doi.org/10.1155/2010/101095 |
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