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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
3
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pubmed:dateCreated |
1996-12-31
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pubmed:abstractText |
All-ceramic restorations can solve many esthetic problems associated with implant-supported prostheses. This study evaluated stress concentration and distribution in implant abutments under normal masticatory forces using computer simulations. Two-dimensional finite element analysis was used to study four different abutment-restoration combinations using Brånemark implants. The models considered two positions of the fastening screw, two positions of the crown margins, cemented versus screw-retained prostheses, and clinical loads of 200 N. Models having screws on top of abutments had the lowest stresses (3.1 to 4.8 MPa) and best stress distribution. Screw-retained prostheses and short crown margins increased overall stresses (9.9 to 11.4 MPa).
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
D
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0893-2174
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
9
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
254-60
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pubmed:dateRevised |
2000-12-18
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pubmed:meshHeading |
pubmed-meshheading:8957860-Aluminum Oxide,
pubmed-meshheading:8957860-Dental Abutments,
pubmed-meshheading:8957860-Dental Implantation, Endosseous,
pubmed-meshheading:8957860-Dental Implants, Single-Tooth,
pubmed-meshheading:8957860-Dental Porcelain,
pubmed-meshheading:8957860-Dental Prosthesis Design,
pubmed-meshheading:8957860-Dental Prosthesis Retention,
pubmed-meshheading:8957860-Dental Stress Analysis,
pubmed-meshheading:8957860-Incisor,
pubmed-meshheading:8957860-Maxilla,
pubmed-meshheading:8957860-Numerical Analysis, Computer-Assisted
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pubmed:articleTitle |
Finite element analysis of ceramic abutment-restoration combinations for osseointegrated implants.
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pubmed:affiliation |
Department of Prosthodontics, School of Dentistry, University of North Carolina at Chapel Hill, USA.
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pubmed:publicationType |
Journal Article
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