Effects of phosphoric acid concentration and etch duration on the shear bond strength of an orthodontic bonding resin to enamel
Identifieur interne : 000901 ( Main/Exploration ); précédent : 000900; suivant : 000902Effects of phosphoric acid concentration and etch duration on the shear bond strength of an orthodontic bonding resin to enamel
Auteurs : L. R. Legler [États-Unis] ; D. H. Retief [États-Unis] ; E. L. Bradley [États-Unis] ; F. R. Denys [États-Unis] ; P. L. Sadowsky [États-Unis]Source :
- American Journal of Orthodontics & Dentofacial Orthopedics [ 0889-5406 ] ; 1989.
Abstract
The purpose of this in vitro study was to determine the effects of phosphoric acid (H3PO4) concentration and duration of etching on the shear bond strength of an orthodontic bonding resin to enamel. Nine bonding procedures, each involving 18 extracted human maxillary permanent canines, were used. Ground enamel surfaces were etched with a 37% H3PO4 solution, a 15% H3PO4 gel, or a 5% H3PO4 solution for 60, 30, and 15 seconds, respectively. Cylinders of an orthodontic bonding resin, Concise, were prepared in a special device. The test specimens were disassembled 15 minutes after preparation and stored in distilled water at 37°C for 24 hours. A shear load was applied to the bonded cylinders at a crosshead speed of 0.02 in·min−1 in an Instron testing machine, and the shear bond strengths were calculated and expressed in MN·m−2. A two-factor analysis of the data showed that the H3PO4 concentration had no significant effect on the shear bond strength, but the duration of etching affected shear bond strength significantly. The enamel aspects of the fractured test specimens were examined microscopically and the percent failure within the bonding resin at the bonding sites estimated. The correlation between shear bond strength and percentage failure within the bonding resin was not significant. The effects of the nine etching procedures on ground and unground enamel surfaces were studied by scanning electron microscopy. The etching procedures produced well-defined etching patterns on both ground and unground enamel surfaces.
Url:
DOI: 10.1016/0889-5406(89)90115-7
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 000227
- to stream Istex, to step Curation: 000221
- to stream Istex, to step Checkpoint: 000852
- to stream Main, to step Merge: 000906
- to stream Main, to step Curation: 000901
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title>Effects of phosphoric acid concentration and etch duration on the shear bond strength of an orthodontic bonding resin to enamel</title><author><name sortKey="Legler, L R" sort="Legler, L R" uniqKey="Legler L" first="L. R." last="Legler">L. R. Legler</name></author><author><name sortKey="Retief, D H" sort="Retief, D H" uniqKey="Retief D" first="D. H." last="Retief">D. H. Retief</name></author><author><name sortKey="Bradley, E L" sort="Bradley, E L" uniqKey="Bradley E" first="E. L." last="Bradley">E. L. Bradley</name></author><author><name sortKey="Denys, F R" sort="Denys, F R" uniqKey="Denys F" first="F. R." last="Denys">F. R. Denys</name></author><author><name sortKey="Sadowsky, P L" sort="Sadowsky, P L" uniqKey="Sadowsky P" first="P. L." last="Sadowsky">P. L. Sadowsky</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:D080C14A54CF5D79B3155ED716143ABD92605335</idno><date when="1989" year="1989">1989</date><idno type="doi">10.1016/0889-5406(89)90115-7</idno><idno type="url">https://api.istex.fr/document/D080C14A54CF5D79B3155ED716143ABD92605335/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">000227</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">000227</idno><idno type="wicri:Area/Istex/Curation">000221</idno><idno type="wicri:Area/Istex/Checkpoint">000852</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000852</idno><idno type="wicri:doubleKey">0889-5406:1989:Legler L:effects:of:phosphoric</idno><idno type="wicri:Area/Main/Merge">000906</idno><idno type="wicri:Area/Main/Curation">000901</idno><idno type="wicri:Area/Main/Exploration">000901</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a">Effects of phosphoric acid concentration and etch duration on the shear bond strength of an orthodontic bonding resin to enamel</title><author><name sortKey="Legler, L R" sort="Legler, L R" uniqKey="Legler L" first="L. R." last="Legler">L. R. Legler</name><affiliation wicri:level="1"><country xml:lang="fr">États-Unis</country><wicri:regionArea>From the University of Alabama at Birmingham, Birmingham, Ala.</wicri:regionArea><wicri:noRegion>Ala.</wicri:noRegion></affiliation></author><author><name sortKey="Retief, D H" sort="Retief, D H" uniqKey="Retief D" first="D. H." last="Retief">D. H. Retief</name><affiliation wicri:level="1"><country xml:lang="fr">États-Unis</country><wicri:regionArea>From the University of Alabama at Birmingham, Birmingham, Ala.</wicri:regionArea><wicri:noRegion>Ala.</wicri:noRegion></affiliation></author><author><name sortKey="Bradley, E L" sort="Bradley, E L" uniqKey="Bradley E" first="E. L." last="Bradley">E. L. Bradley</name><affiliation wicri:level="1"><country xml:lang="fr">États-Unis</country><wicri:regionArea>From the University of Alabama at Birmingham, Birmingham, Ala.</wicri:regionArea><wicri:noRegion>Ala.</wicri:noRegion></affiliation></author><author><name sortKey="Denys, F R" sort="Denys, F R" uniqKey="Denys F" first="F. R." last="Denys">F. R. Denys</name><affiliation wicri:level="1"><country xml:lang="fr">États-Unis</country><wicri:regionArea>From the University of Alabama at Birmingham, Birmingham, Ala.</wicri:regionArea><wicri:noRegion>Ala.</wicri:noRegion></affiliation></author><author><name sortKey="Sadowsky, P L" sort="Sadowsky, P L" uniqKey="Sadowsky P" first="P. L." last="Sadowsky">P. L. Sadowsky</name><affiliation wicri:level="1"><country xml:lang="fr">États-Unis</country><wicri:regionArea>From the University of Alabama at Birmingham, Birmingham, Ala.</wicri:regionArea><wicri:noRegion>Ala.</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">American Journal of Orthodontics & Dentofacial Orthopedics</title><title level="j" type="abbrev">YMOD</title><idno type="ISSN">0889-5406</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="1989">1989</date><biblScope unit="volume">96</biblScope><biblScope unit="issue">6</biblScope><biblScope unit="page" from="485">485</biblScope><biblScope unit="page" to="492">492</biblScope></imprint><idno type="ISSN">0889-5406</idno></series><idno type="istex">D080C14A54CF5D79B3155ED716143ABD92605335</idno><idno type="DOI">10.1016/0889-5406(89)90115-7</idno><idno type="PII">0889-5406(89)90115-7</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0889-5406</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The purpose of this in vitro study was to determine the effects of phosphoric acid (H3PO4) concentration and duration of etching on the shear bond strength of an orthodontic bonding resin to enamel. Nine bonding procedures, each involving 18 extracted human maxillary permanent canines, were used. Ground enamel surfaces were etched with a 37% H3PO4 solution, a 15% H3PO4 gel, or a 5% H3PO4 solution for 60, 30, and 15 seconds, respectively. Cylinders of an orthodontic bonding resin, Concise, were prepared in a special device. The test specimens were disassembled 15 minutes after preparation and stored in distilled water at 37°C for 24 hours. A shear load was applied to the bonded cylinders at a crosshead speed of 0.02 in·min−1 in an Instron testing machine, and the shear bond strengths were calculated and expressed in MN·m−2. A two-factor analysis of the data showed that the H3PO4 concentration had no significant effect on the shear bond strength, but the duration of etching affected shear bond strength significantly. The enamel aspects of the fractured test specimens were examined microscopically and the percent failure within the bonding resin at the bonding sites estimated. The correlation between shear bond strength and percentage failure within the bonding resin was not significant. The effects of the nine etching procedures on ground and unground enamel surfaces were studied by scanning electron microscopy. The etching procedures produced well-defined etching patterns on both ground and unground enamel surfaces.</div></front></TEI><affiliations><list><country><li>États-Unis</li></country></list><tree><country name="États-Unis"><noRegion><name sortKey="Legler, L R" sort="Legler, L R" uniqKey="Legler L" first="L. R." last="Legler">L. R. Legler</name></noRegion><name sortKey="Bradley, E L" sort="Bradley, E L" uniqKey="Bradley E" first="E. L." last="Bradley">E. L. Bradley</name><name sortKey="Denys, F R" sort="Denys, F R" uniqKey="Denys F" first="F. R." last="Denys">F. R. Denys</name><name sortKey="Retief, D H" sort="Retief, D H" uniqKey="Retief D" first="D. H." last="Retief">D. H. Retief</name><name sortKey="Sadowsky, P L" sort="Sadowsky, P L" uniqKey="Sadowsky P" first="P. L." last="Sadowsky">P. L. Sadowsky</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Musique/explor/MagnificatV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000901 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 000901 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Musique
|area= MagnificatV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= ISTEX:D080C14A54CF5D79B3155ED716143ABD92605335
|texte= Effects of phosphoric acid concentration and etch duration on the shear bond strength of an orthodontic bonding resin to enamel
}}
| This area was generated with Dilib version V0.6.31. |  |