Linked Life Data

11471267

Source:http://linkedlifedata.com/resource/pubmed/id/11471267

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2001-7-26
pubmed:abstractText
This in vitro study was designed to determine the effect of time on the measured mean force to debond when brackets were bonded using resin-modified glass poly(alkenoate) cements and to compare them with a light-cured diacrylate. Changes in surface topography and composition of the cements were also investigated. Stainless steel orthodontic brackets were bonded to 160 upper premolar teeth in four test groups: Transbond, Fuji Ortho LC, and 3 M Multi-Cure with and without enamel etching. Shear bond testing to failure was performed after 1 hour, 1 week, 1 month, and 1 year. The first three groups were then rebonded and stored for the same time periods before being shear tested again. Debond force was recorded in Newtons and the locus of bond failure was scored using the Adhesive Remnant Index (ARI). Surface topography and composition of the test materials were also studied at time periods of 1 day, and 1, 6, and 18 months, using scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX). The mean force to debond (N) was observed to increase with time in all four test groups, with there being little significant difference between the groups. When the same brackets were rebonded, the mean force to debond reduced. Surface topography and compositional changes over time were only observed with the resin-modified glass poly(alkenoate) cements. Resin-modified glass poly(alkenoate) cements have a mean force to debond comparable with diacrylate bonding agents. However, unlike diacrylates they undergo surface changes with time, the significance of which is unknown.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
D
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0141-5387
pubmed:author
pubmed:issnType
Print
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
243-52
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:11471267-Acrylic Resins, pubmed-meshheading:11471267-Aluminum Silicates, pubmed-meshheading:11471267-Analysis of Variance, pubmed-meshheading:11471267-Bisphenol A-Glycidyl Methacrylate, pubmed-meshheading:11471267-Dental Bonding, pubmed-meshheading:11471267-Dental Debonding, pubmed-meshheading:11471267-Electron Probe Microanalysis, pubmed-meshheading:11471267-Glass Ionomer Cements, pubmed-meshheading:11471267-Humans, pubmed-meshheading:11471267-Materials Testing, pubmed-meshheading:11471267-Microscopy, Electron, Scanning, pubmed-meshheading:11471267-Orthodontic Brackets, pubmed-meshheading:11471267-Resin Cements, pubmed-meshheading:11471267-Stainless Steel, pubmed-meshheading:11471267-Surface Properties, pubmed-meshheading:11471267-Survival Analysis, pubmed-meshheading:11471267-Tensile Strength
pubmed:year
2001
pubmed:articleTitle
An in vitro investigation into the use of resin-modified glass poly(alkenoate) cements as orthodontic bonding agents.
pubmed:affiliation
Department Child Dental Health, Bristol Dental Hospital, London, UK.
pubmed:publicationType
Journal Article, Comparative Study