| Clinical evaluation of high-copper amalgams. | |
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MedLine Citation:
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PMID: 8599586 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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PURPOSE: To compare the clinical performance of two high-copper amalgam alloys with different compositions by evaluating marginal fracture of each restoration over a 2-year period. MATERIALS AND METHODS: Restorations of Valiant PhD and Zenith Premium alloy were placed in Class I and II cavity preparations in patients and evaluated at baseline, 1 and 2 years to determine their degree of marginal breakdown. RESULTS: After 2 years, the Zenith Premium alloy exhibited significantly less marginal breakdown than the Valiant PhD alloy with no significant additional deterioration of the Zenith restorations between the 1st and 2nd year. The data indicate that the Zenith Premium alloy exhibits less marginal deterioration than Valiant PhD so it may be predicted that it will perform better long term. A possible explanation for this better performance may be that the Zenith Premium contains zinc while the Valiant PhD includes palladium but no zinc in its formulation. |
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Authors:
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T G Berry; J S Osborne; J B Summitt |
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Publication Detail:
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Type: Clinical Trial; Controlled Clinical Trial; Journal Article |
Journal Detail:
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Title: American journal of dentistry Volume: 8 ISSN: 0894-8275 ISO Abbreviation: Am J Dent Publication Date: 1995 Jun |
Date Detail:
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Created Date: 1996-04-29 Completed Date: 1996-04-29 Revised Date: 2007-11-15 |
Medline Journal Info:
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Nlm Unique ID: 8806701 Medline TA: Am J Dent Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 122-4 Citation Subset: D |
Affiliation:
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Department of Restorative Dentistry, University of Texas Health Science Center at San Antonio, TX 78284-7890, USA. |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Alloys
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chemistry Copper Dental Alloys / chemistry Dental Amalgam* / chemistry Dental Restoration, Permanent Evaluation Studies as Topic Follow-Up Studies Humans Observer Variation Palladium Statistics, Nonparametric Surface Properties Zinc |
| Chemical | |
Reg. No./Substance:
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0/Alloys; 0/Dental Alloys; 0/zenith premium alloy; 7440-05-3/Palladium; 7440-50-8/Copper; 7440-66-6/Zinc; 8049-85-2/Dental Amalgam; 97198-18-0/Valiant PhD |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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