The effect of resin desensitizing agents on crown retention
Article Abstract:
Chemicals used to desensitize teeth before applying crowns do not seem to significantly affect the bond strength between the crown and the tooth. Thirty extracted teeth were treated with or without one of two desensitizing agents, a crown was applied with one of three cements, and increasing force was applied to dislodge the crown. There was no significant difference in the amount of force needed to dislodge the crown among pretreated or untreated teeth. However, cements containing glass ionomers tended to require more force to dislodge than those containing zinc phosphates.
Publication Name: Journal of the American Dental Association
Subject: Health
ISSN: 0002-8177
Year: 1997
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A characterization of first-generation flowable composites
Article Abstract:
First-generation flowable composites are not as strong as traditional composites and should only be used in certain conditions. Composites are used to fill cavities so the filling matches the color of the tooth. Flowable composites were introduced in 1996. Researchers evaluated the flow characteristics of eight flowable composites compared to two traditional composites. The mechanical properties of the flowable composites were 60% to 90% of the traditional composites. During simulations of 10 years of toothbrushing, wear rates for all composites were relatively low.
Publication Name: Journal of the American Dental Association
Subject: Health
ISSN: 0002-8177
Year: 1998
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Restorative considerations with vital tooth bleaching
Article Abstract:
Tooth bleaching may affect tooth restorations. Bleaching teeth can reduce the bond strength of composites, but this can be avoided by delaying the restorative procedure for up to a week. Bleaching does not significantly change the color of many restorative materials although it can cause mercury to leak from amalgams. Patients must be told that bleaching will not change the color of crowns and bridges. However, bleaching can lighten natural teeth so they once again match the color of an old crown.
Publication Name: Journal of the American Dental Association
Subject: Health
ISSN: 0002-8177
Year: 1997
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: The effect of acetaminophen on prostacyclin production in pregnant women. Umbilical arteries of babies born to cigarette smokers generate less prostacyclin and contain less arginine and citrulline compared with those of babies born to control subjects
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