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dc.contributor.authorBurrow, M.en
dc.contributor.authorBurrow, Johnen
dc.contributor.authorMakinson, Owen Francisen
dc.identifier.citationAustralian Dental Journal, 2001; 46(4):258-262en
dc.descriptionThe document attached has been archived with permission from the Australian Dental Association. An external link to the publisher’s copy is included.en
dc.description.abstractBackground: In a previous study to examine the nature of etching on the walls of fissures, there was a consistent result of resistance to deep etching on parts of the walls and a zone of lesser etching on part of the walls as evidenced by the uptake of stain. The staining had been used to examine the nature of the etch pattern. The aims of this study were to define the nature of this etch resistant area. Methods: A sample of 55 teeth, both molars and premolars, were divided into three groups. In the first group the wetting of fissures by the etchant was examined; the second group tested for the effects of pellicle-cuticle-debris or air entrapment on the etching process. The final group looked at alternative mechanical treatments of the fissure prior to etching. Results: The specimens split along the fissures showed clearly that the etch resistant zone was not due to lack of contact with the etchant or the presence of a pellicle-cuticle-debris covering, but to the presence of a prismless enamel structure. This study showed that this zone inhibited tag development on the fissure walls. Conclusions: The mechanical removal of this prismless layer of enamel within the fissure system should result in an improved bonding of a fissure sealant through better tag development, in turn leading to a reduction in the failure rate of a sealant used to prevent caries.en
dc.description.statementofresponsibilityMF Burrow, JF Burrow and OF Makinsonen
dc.publisherAustralian Dental Associationen
dc.subjectFissure morphology; prismless layer; fissure sealantsen
dc.titlePits and fissures: etch resistance in prismless enamel wallsen
dc.typeJournal articleen
dc.contributor.schoolSchool of Dentistryen
Appears in Collections:Dentistry publications

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