File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: An ultrastructural study of the influence of acidity of self-etching primers and smear layers thickness on bonding to intact dentin

TitleAn ultrastructural study of the influence of acidity of self-etching primers and smear layers thickness on bonding to intact dentin
Authors
Issue Date2000
PublisherQuintessence Publishing Co Ltd. The Journal's web site is located at http://www.quintessencepublishing.co.uk/catalog/product_info.php?cPath=3&products_id=243
Citation
The Journal of Adhesive Dentistry, 2000, v. 2 n. 2, p. 83-98 How to Cite?
AbstractPurpose: The objectives of this study were (1) to determine the depth of demineralization into intact dentin using several self-etching primer systems with different pH values, and (2) to evaluate whether hybridization of intact dentin in Clearfil SE Bond may be affected by variation in the thickness of the smear layers. Materials and Methods: Dentin disks were created from mid-coronal dentin in extracted, human third molars. Three self-etching primer systems (Clearfil Liner Bond II, Liner Bond 2V, and SE Bond) were applied separately to these disks to evaluate how deep self-etching systems penetrate through smear layers into intact dentin. Dentin treated with All-Bond 2 using the 'no-etch' technique was used as a control group. In the second part of the study, dentin disks with different smear-layer thicknesses were produced. The cryofractured control group was devoid of a smear layer. The experimental teeth were ground with 60-, 180-, or 600-grit SiC paper and bonded using SE Bond. Dentin disks were bonded together and examined with TEM. Results: All-Bond 2 did not etch beyond the smear layer. The three self-etching primers etched beyond the smear layer to form true hybrid layers within intact dentin. This layer was thickest with Liner Bond 2 (ca 1.2 to 1.4 μm), but very thin (0.5 μm) using both Liner Bond 2V and SE Bond. Application of SE Bond to dentin of different surface roughness produced hybridized smear layers of variable thickness. However, the thickness of the underlying true hybrid remained consistent for the four groups (ca 0.4 to 0.5 μm). Conclusion: Self-etching primers create thin hybrid layers that incorporate the smear layer. The suspicion that thick smear layers may interfere with the diffusion of self-etching primers into the underlying intact dentin was not confirmed.
Persistent Identifierhttp://hdl.handle.net/10722/224591
ISSN
2015 Impact Factor: 1.594
2015 SCImago Journal Rankings: 0.486

 

DC FieldValueLanguage
dc.contributor.authorTay, FR-
dc.contributor.authorSano, H-
dc.contributor.authorCarvalho, R-
dc.contributor.authorPashley, EL-
dc.contributor.authorPashley, DH-
dc.date.accessioned2016-04-08T04:30:09Z-
dc.date.available2016-04-08T04:30:09Z-
dc.date.issued2000-
dc.identifier.citationThe Journal of Adhesive Dentistry, 2000, v. 2 n. 2, p. 83-98-
dc.identifier.issn1461-5185-
dc.identifier.urihttp://hdl.handle.net/10722/224591-
dc.description.abstractPurpose: The objectives of this study were (1) to determine the depth of demineralization into intact dentin using several self-etching primer systems with different pH values, and (2) to evaluate whether hybridization of intact dentin in Clearfil SE Bond may be affected by variation in the thickness of the smear layers. Materials and Methods: Dentin disks were created from mid-coronal dentin in extracted, human third molars. Three self-etching primer systems (Clearfil Liner Bond II, Liner Bond 2V, and SE Bond) were applied separately to these disks to evaluate how deep self-etching systems penetrate through smear layers into intact dentin. Dentin treated with All-Bond 2 using the 'no-etch' technique was used as a control group. In the second part of the study, dentin disks with different smear-layer thicknesses were produced. The cryofractured control group was devoid of a smear layer. The experimental teeth were ground with 60-, 180-, or 600-grit SiC paper and bonded using SE Bond. Dentin disks were bonded together and examined with TEM. Results: All-Bond 2 did not etch beyond the smear layer. The three self-etching primers etched beyond the smear layer to form true hybrid layers within intact dentin. This layer was thickest with Liner Bond 2 (ca 1.2 to 1.4 μm), but very thin (0.5 μm) using both Liner Bond 2V and SE Bond. Application of SE Bond to dentin of different surface roughness produced hybridized smear layers of variable thickness. However, the thickness of the underlying true hybrid remained consistent for the four groups (ca 0.4 to 0.5 μm). Conclusion: Self-etching primers create thin hybrid layers that incorporate the smear layer. The suspicion that thick smear layers may interfere with the diffusion of self-etching primers into the underlying intact dentin was not confirmed.-
dc.languageeng-
dc.publisherQuintessence Publishing Co Ltd. The Journal's web site is located at http://www.quintessencepublishing.co.uk/catalog/product_info.php?cPath=3&products_id=243-
dc.relation.ispartofThe Journal of Adhesive Dentistry-
dc.titleAn ultrastructural study of the influence of acidity of self-etching primers and smear layers thickness on bonding to intact dentin-
dc.typeArticle-
dc.identifier.pmid11317404-
dc.identifier.hkuros55580-
dc.identifier.volume2-
dc.identifier.issue2-
dc.identifier.spage83-
dc.identifier.epage98-
dc.publisher.placeUnited Kingdom-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats