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An in vitro evaluation of the integrity of stainless steel crown margins cemented with different luting agents.

Identifieur interne : 000551 ( Main/Exploration ); précédent : 000550; suivant : 000552

An in vitro evaluation of the integrity of stainless steel crown margins cemented with different luting agents.

Auteurs : R L Ettinger [États-Unis] ; P P Kambhu ; C M Asmussen ; P C Damiano

Source :

RBID : pubmed:9680915

Descripteurs français

English descriptors

Abstract

The elderly population is retaining more teeth which require extensive restorations. The purpose of this study was to identify a luting agent which had the least marginal breakdown when used with stainless steel crowns. Thirty-six caries-free molars were selected, prepared for stainless steel crowns, and embedded in acrylic to support the crown and tooth. The crowns (Unitek/3M) were cemented with 4 different luting agents: (A) Fleck's Cement, (B) Ketac-Cem, (C) All-Bond C & B Cement, and (D) Panavia EX Cement. All the restored teeth were thermocycled and divided into 3 experimental groups. Twelve teeth were stained. The remaining teeth were occlusally loaded and stained. The remaining 12 teeth were thermocycled and stained again. The stainless steel crowns were then sectioned and photographed at 7.5x mag. The dye penetration was evaluated by measurement of the percentage of dye penetration from the crown margin to the cusp tip on each side. Statistical analysis found that the least dye penetration was with All-Bond C & B Cement (p = 0.0001). The most extensive penetration was observed in Ketac-Cem Occlusal loading was a significant factor (p = 0.0001) increasing the dye penetration, but the crown-tooth gap was not.

DOI: 10.1111/j.1754-4505.1998.tb00908.x
PubMed: 9680915


Affiliations:


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Le document en format XML

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<nlm:affiliation>Department of Prosthodontics, Dows Institute for Dental Research, University of Iowa, Iowa City 52242, USA.</nlm:affiliation>
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<wicri:regionArea>Department of Prosthodontics, Dows Institute for Dental Research, University of Iowa, Iowa City 52242</wicri:regionArea>
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<name sortKey="Asmussen, C M" sort="Asmussen, C M" uniqKey="Asmussen C" first="C M" last="Asmussen">C M Asmussen</name>
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<term>Aged (MeSH)</term>
<term>Cementation (methods)</term>
<term>Composite Resins (MeSH)</term>
<term>Crowns (MeSH)</term>
<term>Dental Care for Aged (methods)</term>
<term>Dental Leakage (MeSH)</term>
<term>Dental Marginal Adaptation (MeSH)</term>
<term>Evaluation Studies as Topic (MeSH)</term>
<term>Humans (MeSH)</term>
<term>Magnesium Oxide (MeSH)</term>
<term>Methacrylates (MeSH)</term>
<term>Middle Aged (MeSH)</term>
<term>Molar (MeSH)</term>
<term>Phosphates (MeSH)</term>
<term>Pilot Projects (MeSH)</term>
<term>Polycarboxylate Cement (MeSH)</term>
<term>Resin Cements (MeSH)</term>
<term>Stainless Steel (MeSH)</term>
<term>Zinc Oxide (MeSH)</term>
<term>Zinc Phosphate Cement (MeSH)</term>
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<keywords scheme="KwdFr" xml:lang="fr">
<term>Acier inoxydable (MeSH)</term>
<term>Adaptation marginale (odontologie) (MeSH)</term>
<term>Adulte d'âge moyen (MeSH)</term>
<term>Ciment carboxylate (MeSH)</term>
<term>Ciment phosphate zinc (MeSH)</term>
<term>Cimentation (méthodes)</term>
<term>Couronnes (MeSH)</term>
<term>Céments résine (MeSH)</term>
<term>Humains (MeSH)</term>
<term>Molaire (MeSH)</term>
<term>Méthacrylates (MeSH)</term>
<term>Oxyde de magnésium (MeSH)</term>
<term>Oxyde de zinc (MeSH)</term>
<term>Percolation dentaire (MeSH)</term>
<term>Phosphates (MeSH)</term>
<term>Projets pilotes (MeSH)</term>
<term>Résines composites (MeSH)</term>
<term>Soins dentaires pour personnes âgées (méthodes)</term>
<term>Sujet âgé (MeSH)</term>
<term>Études d'évaluation comme sujet (MeSH)</term>
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<term>Composite Resins</term>
<term>Magnesium Oxide</term>
<term>Methacrylates</term>
<term>Phosphates</term>
<term>Polycarboxylate Cement</term>
<term>Resin Cements</term>
<term>Stainless Steel</term>
<term>Zinc Oxide</term>
<term>Zinc Phosphate Cement</term>
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<term>Cementation</term>
<term>Dental Care for Aged</term>
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<term>Cimentation</term>
<term>Soins dentaires pour personnes âgées</term>
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<keywords scheme="MESH" xml:lang="en">
<term>Aged</term>
<term>Crowns</term>
<term>Dental Leakage</term>
<term>Dental Marginal Adaptation</term>
<term>Evaluation Studies as Topic</term>
<term>Humans</term>
<term>Middle Aged</term>
<term>Molar</term>
<term>Pilot Projects</term>
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<term>Acier inoxydable</term>
<term>Adaptation marginale (odontologie)</term>
<term>Adulte d'âge moyen</term>
<term>Ciment carboxylate</term>
<term>Ciment phosphate zinc</term>
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<term>Céments résine</term>
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<term>Molaire</term>
<term>Méthacrylates</term>
<term>Oxyde de magnésium</term>
<term>Oxyde de zinc</term>
<term>Percolation dentaire</term>
<term>Phosphates</term>
<term>Projets pilotes</term>
<term>Résines composites</term>
<term>Sujet âgé</term>
<term>Études d'évaluation comme sujet</term>
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<div type="abstract" xml:lang="en">The elderly population is retaining more teeth which require extensive restorations. The purpose of this study was to identify a luting agent which had the least marginal breakdown when used with stainless steel crowns. Thirty-six caries-free molars were selected, prepared for stainless steel crowns, and embedded in acrylic to support the crown and tooth. The crowns (Unitek/3M) were cemented with 4 different luting agents: (A) Fleck's Cement, (B) Ketac-Cem, (C) All-Bond C & B Cement, and (D) Panavia EX Cement. All the restored teeth were thermocycled and divided into 3 experimental groups. Twelve teeth were stained. The remaining teeth were occlusally loaded and stained. The remaining 12 teeth were thermocycled and stained again. The stainless steel crowns were then sectioned and photographed at 7.5x mag. The dye penetration was evaluated by measurement of the percentage of dye penetration from the crown margin to the cusp tip on each side. Statistical analysis found that the least dye penetration was with All-Bond C & B Cement (p = 0.0001). The most extensive penetration was observed in Ketac-Cem Occlusal loading was a significant factor (p = 0.0001) increasing the dye penetration, but the crown-tooth gap was not.</div>
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<AbstractText>The elderly population is retaining more teeth which require extensive restorations. The purpose of this study was to identify a luting agent which had the least marginal breakdown when used with stainless steel crowns. Thirty-six caries-free molars were selected, prepared for stainless steel crowns, and embedded in acrylic to support the crown and tooth. The crowns (Unitek/3M) were cemented with 4 different luting agents: (A) Fleck's Cement, (B) Ketac-Cem, (C) All-Bond C & B Cement, and (D) Panavia EX Cement. All the restored teeth were thermocycled and divided into 3 experimental groups. Twelve teeth were stained. The remaining teeth were occlusally loaded and stained. The remaining 12 teeth were thermocycled and stained again. The stainless steel crowns were then sectioned and photographed at 7.5x mag. The dye penetration was evaluated by measurement of the percentage of dye penetration from the crown margin to the cusp tip on each side. Statistical analysis found that the least dye penetration was with All-Bond C & B Cement (p = 0.0001). The most extensive penetration was observed in Ketac-Cem Occlusal loading was a significant factor (p = 0.0001) increasing the dye penetration, but the crown-tooth gap was not.</AbstractText>
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