Linked Life Data

20464456

Source:http://linkedlifedata.com/resource/pubmed/id/20464456

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
2010-8-11
pubmed:abstractText
Titanium (Ti) implants are extensively used in a number of biomedical and dental applications. This work introduces Ti into the glass phase of a zinc based glass polyalkenoate cement (GPC) and investigates changes in handling and mechanical properties considering two molecular weight polyacrylic acids (PAA), E9 and E11. Considering the handling properties, the working time (T (w)) increased from 50 s(E9), 32 s(E11) (BT 101, Ti-free) to 169 s(E9), 74 s(E11) with TW-Z (highest Ti content), respectively. The setting time (T (s)) increased from 76 s(E9), 47 s(E11) (BT 101) to 303 s(E9), 232 s(E11) with TW-Z, respectively. Ti was also found to have a significant increase on both compressive (sigma (c)) and biaxial flexural strength (sigma (f)), where sigma (c) increased from 36 MPa(E9), 56 MPa(E11) (BT 101) to 56 MPa(E9) and 70 MPa(E11) with TW-Z respectfully. sigma (f) also increased from 11 MPa(E9), 22 MPa(E11) (BT 101) to 22 MPa(E9) and 77 MPa(E11) with TW-Z, respectively. No increase in mechanical properties was evident with respect to maturation. Raman Spectroscopy was employed to investigate changes in glass structure and the setting of the cements with. This revealed increased glass network disruption with increasing TiO(2) content and matured cement setting with TW-Z as compared to the control BT 101. FT-IR was then employed to investigate any additional setting mechanism and changes with time. Spectroscopy determined that Ca(2+)/Sr(2+)PAA complexes are primarily responsible for the setting and mechanical strength with no changes occurring over time.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
1573-4838
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
21
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2355-64
pubmed:meshHeading
pubmed:year
2010
pubmed:articleTitle
A spectroscopic investigation into the setting and mechanical properties of titanium containing glass polyalkenoate cements.
pubmed:affiliation
Inamori School of Engineering, Alfred University, Alfred, NY 14802, USA. wren@alfred.edu
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't, Evaluation Studies