Seating load parameters impact on dental ceramic reinforcement conferred by cementation with resin-cements.

Hdl Handle:
http://hdl.handle.net/10147/133589
Title:
Seating load parameters impact on dental ceramic reinforcement conferred by cementation with resin-cements.
Authors:
Addison, Owen; Sodhi, Amandeep; Fleming, Garry J P
Affiliation:
Biomaterials Unit, University of Birmingham School of Dentistry, St. Chad's Queensway, Birmingham B4 6NN, UK. addisono@adf.bham.ac.uk
Citation:
Seating load parameters impact on dental ceramic reinforcement conferred by cementation with resin-cements. 2010, 26 (9):915-21 Dent Mater
Journal:
Dental materials : official publication of the Academy of Dental Materials
Issue Date:
Sep-2010
URI:
http://hdl.handle.net/10147/133589
DOI:
10.1016/j.dental.2010.05.006
PubMed ID:
20554316
Abstract:
Cementation of all-ceramic restorations with resin-cements has been demonstrated to reduce the incidence of fracture in service. The aim was to investigate the influence of loading force and loading duration applied during cementation on the reinforcement conferred by a resin-cement on a leucite reinforced glass-ceramic.; 210 glass-ceramic discs (12 mm diameter, 0.8 mm thickness) were allocated to seven groups (n=30). The bi-axial flexure strength (BFS) was determined for 'as-fired' specimens (group A), following HF-acid etching (group B) and following etching and centrally loading on a semi-compliant substrate with 30 N for 300 s (group C). Further etched specimens were coated with Rely-X Unicem resin-cement under cementation loading of 5 or 30 N, for 60 or 300 s (groups D-F) prior to BFS determination using multilayered analytical solutions. BFS data was compared using factorial or one-way analyses of variance and the Weibull analysis.; HF-acid etching of the 'as-fired' surface resulted in a significant reduction in mean BFS (P<0.001) whereas resin-cementation subsequently conferred significant strengthening (P<0.001) ranging from 24 to 38% and dependent on the loading parameters employed. A factorial significance (P=0.004) of seating load (5 or 30 N) and significant factorial interaction (P<0.001) of seating load and load duration (60 or 300 s) on the mean BFS were identified.; The magnitude of resin-reinforcement conferred was sensitive to the loading parameters investigated although the mechanisms underlying the variation appear complex. Similar patterns of variability can be expected clinically impacting on the clinical longevity of resin-cemented glass-ceramic restorations.
Item Type:
Article
Language:
en
MeSH:
Acid Etching, Dental; Aluminum Silicates; Analysis of Variance; Bite Force; Cementation; Ceramics; Dental Bonding; Dental Porcelain; Dental Restoration, Permanent; Dental Stress Analysis; Pliability; Resin Cements; Silanes; Statistics, Nonparametric; Survival Analysis
ISSN:
1879-0097

Full metadata record

DC FieldValue Language
dc.contributor.authorAddison, Owenen
dc.contributor.authorSodhi, Amandeepen
dc.contributor.authorFleming, Garry J Pen
dc.date.accessioned2011-06-17T15:56:54Z-
dc.date.available2011-06-17T15:56:54Z-
dc.date.issued2010-09-
dc.identifier.citationSeating load parameters impact on dental ceramic reinforcement conferred by cementation with resin-cements. 2010, 26 (9):915-21 Dent Materen
dc.identifier.issn1879-0097-
dc.identifier.pmid20554316-
dc.identifier.doi10.1016/j.dental.2010.05.006-
dc.identifier.urihttp://hdl.handle.net/10147/133589-
dc.description.abstractCementation of all-ceramic restorations with resin-cements has been demonstrated to reduce the incidence of fracture in service. The aim was to investigate the influence of loading force and loading duration applied during cementation on the reinforcement conferred by a resin-cement on a leucite reinforced glass-ceramic.-
dc.description.abstract210 glass-ceramic discs (12 mm diameter, 0.8 mm thickness) were allocated to seven groups (n=30). The bi-axial flexure strength (BFS) was determined for 'as-fired' specimens (group A), following HF-acid etching (group B) and following etching and centrally loading on a semi-compliant substrate with 30 N for 300 s (group C). Further etched specimens were coated with Rely-X Unicem resin-cement under cementation loading of 5 or 30 N, for 60 or 300 s (groups D-F) prior to BFS determination using multilayered analytical solutions. BFS data was compared using factorial or one-way analyses of variance and the Weibull analysis.-
dc.description.abstractHF-acid etching of the 'as-fired' surface resulted in a significant reduction in mean BFS (P<0.001) whereas resin-cementation subsequently conferred significant strengthening (P<0.001) ranging from 24 to 38% and dependent on the loading parameters employed. A factorial significance (P=0.004) of seating load (5 or 30 N) and significant factorial interaction (P<0.001) of seating load and load duration (60 or 300 s) on the mean BFS were identified.-
dc.description.abstractThe magnitude of resin-reinforcement conferred was sensitive to the loading parameters investigated although the mechanisms underlying the variation appear complex. Similar patterns of variability can be expected clinically impacting on the clinical longevity of resin-cemented glass-ceramic restorations.-
dc.language.isoenen
dc.subject.meshAcid Etching, Dental-
dc.subject.meshAluminum Silicates-
dc.subject.meshAnalysis of Variance-
dc.subject.meshBite Force-
dc.subject.meshCementation-
dc.subject.meshCeramics-
dc.subject.meshDental Bonding-
dc.subject.meshDental Porcelain-
dc.subject.meshDental Restoration, Permanent-
dc.subject.meshDental Stress Analysis-
dc.subject.meshPliability-
dc.subject.meshResin Cements-
dc.subject.meshSilanes-
dc.subject.meshStatistics, Nonparametric-
dc.subject.meshSurvival Analysis-
dc.titleSeating load parameters impact on dental ceramic reinforcement conferred by cementation with resin-cements.en
dc.typeArticleen
dc.contributor.departmentBiomaterials Unit, University of Birmingham School of Dentistry, St. Chad's Queensway, Birmingham B4 6NN, UK. addisono@adf.bham.ac.uken
dc.identifier.journalDental materials : official publication of the Academy of Dental Materialsen
dc.description.provinceLeinster-

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