Dimensional stability of dental restorative materials and cements over four years.
Identifieur interne : 000462 ( Main/Exploration ); précédent : 000461; suivant : 000463Dimensional stability of dental restorative materials and cements over four years.
Auteurs : Charles B. Hermesch [États-Unis] ; Bryan S. Wall ; John F. McentireSource :
- General dentistry [ 0363-6771 ]
Descripteurs français
- KwdFr :
- MESH :
- composition chimique : Amalgame dentaire, Ciments dentaires, Résines composites.
- Absorption, Eau, Mouillabilité, Restaurations dentaires permanentes, Test de matériaux.
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Composite Resins, Dental Amalgam, Dental Cements.
- Absorption, Dental Restoration, Permanent, Materials Testing, Water, Wettability.
Abstract
While the polymerization shrinkage of some restorative materials is well-recognized among dentists, the problem and extent of dimensional expansion has received a relatively small amount of study. The tooth or restorative material may risk fracturing if the net expansion exceeds the amount of shrinkage. This study measured the linear dimensional change of dental restorative materials and cements stored in water for four years immediately after curing. Cylindrical specimens were made according to manufacturer's recommendations for each of 19 materials. After four years, five of the 19 materials were affected by net shrinkage; the remaining 14 underwent net expansion. One product's linear expansion exceeded 3.5%, which corresponds to over 10% volumetrically. Dentists should consider long-term dimensional stability data when selecting materials for clinical use.
PubMed: 15055648
Affiliations:
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Hermesch</name><affiliation wicri:level="1"><nlm:affiliation>Department of General Dentistry, University of Texas Health Science Center, San Antonio, USA.</nlm:affiliation><country xml:lang="fr">États-Unis</country><wicri:regionArea>Department of General Dentistry, University of Texas Health Science Center, San Antonio</wicri:regionArea><wicri:noRegion>San Antonio</wicri:noRegion></affiliation></author><author><name sortKey="Wall, Bryan S" sort="Wall, Bryan S" uniqKey="Wall B" first="Bryan S" last="Wall">Bryan S. Wall</name></author><author><name sortKey="Mcentire, John F" sort="Mcentire, John F" uniqKey="Mcentire J" first="John F" last="Mcentire">John F. 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The tooth or restorative material may risk fracturing if the net expansion exceeds the amount of shrinkage. This study measured the linear dimensional change of dental restorative materials and cements stored in water for four years immediately after curing. Cylindrical specimens were made according to manufacturer's recommendations for each of 19 materials. After four years, five of the 19 materials were affected by net shrinkage; the remaining 14 underwent net expansion. One product's linear expansion exceeded 3.5%, which corresponds to over 10% volumetrically. Dentists should consider long-term dimensional stability data when selecting materials for clinical use.</div></front></TEI><pubmed><MedlineCitation Status="MEDLINE" Owner="NLM"><PMID Version="1">15055648</PMID><DateCompleted><Year>2004</Year><Month>04</Month><Day>13</Day></DateCompleted><DateRevised><Year>2013</Year><Month>11</Month><Day>21</Day></DateRevised><Article PubModel="Print"><Journal><ISSN IssnType="Print">0363-6771</ISSN><JournalIssue CitedMedium="Print"><Volume>51</Volume><Issue>6</Issue><PubDate><MedlineDate>2003 Nov-Dec</MedlineDate></PubDate></JournalIssue><Title>General dentistry</Title><ISOAbbreviation>Gen Dent</ISOAbbreviation></Journal><ArticleTitle>Dimensional stability of dental restorative materials and cements over four years.</ArticleTitle><Pagination><MedlinePgn>518-23</MedlinePgn></Pagination><Abstract><AbstractText>While the polymerization shrinkage of some restorative materials is well-recognized among dentists, the problem and extent of dimensional expansion has received a relatively small amount of study. The tooth or restorative material may risk fracturing if the net expansion exceeds the amount of shrinkage. This study measured the linear dimensional change of dental restorative materials and cements stored in water for four years immediately after curing. Cylindrical specimens were made according to manufacturer's recommendations for each of 19 materials. After four years, five of the 19 materials were affected by net shrinkage; the remaining 14 underwent net expansion. One product's linear expansion exceeded 3.5%, which corresponds to over 10% volumetrically. 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Mcentire</name><name sortKey="Wall, Bryan S" sort="Wall, Bryan S" uniqKey="Wall B" first="Bryan S" last="Wall">Bryan S. Wall</name></noCountry><country name="États-Unis"><noRegion><name sortKey="Hermesch, Charles B" sort="Hermesch, Charles B" uniqKey="Hermesch C" first="Charles B" last="Hermesch">Charles B. Hermesch</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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