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Article: Fluoride release, weight loss and erosive wear of modern aesthetic restoratives

TitleFluoride release, weight loss and erosive wear of modern aesthetic restoratives
Authors
Issue Date1999
PublisherNature Publishing Group. The Journal's web site is located at http://www.bdj.co.uk
Citation
British Dental Journal, 1999, v. 187 n. 5, p. 265-270 How to Cite?
AbstractObjective: In this investigation, the in vitro sustained fluoride release, weight loss and erosive wear of three conventional glass ionomer cements (Fuji IX, ChemFil Superior, Ketac-Silver), three resin-modified glass ionomer cements (Fuji II LC, Vitremer, Photac-Fil), a polyacid-modified resin composite (Dyract), and a resin composite control material (Z100) were compared. Methods: The amounts of fluoride released and weight changes were measured for 12 weeks using a fluoride electrode with TISAB III buffer. After 12 weeks, the specimens were recharged with fluoride using 2 mL of 1.23% APF gel. The recharged specimens were assessed for the amounts of fluoride released and weight changes over another 12 weeks. At the end of the experiment, the specimens were examined with SEM and surface profilometry. Results: All materials, with the exception of Z100, showed the highest initial fluoride release rates during the first 2 days, dropping quickly over 2 weeks and becoming largely stabilised after 5 weeks, in an exponential mode. The recharging of the specimens with APF gel caused a large increase in the amounts of fluoride released during the first 2 days only. Analyses for all cements showed strong correlations between mean weight loss and cumulative fluoride release over a 5-week period following the application of the APF gel. SEM and surface profilometry found that roughness increased from the polyacid-modified resin composite to the conventional glass ionomer cements. Conclusions: APF gel caused erosive wear of the glass ionomer cements especially, and the wear correlated well with the weight losses. To minimise surface erosion, APF gel should not be used on these cements, especially as the recharging effects are transitory. © British Dental Journal 1999.
Persistent Identifierhttp://hdl.handle.net/10722/65853
ISSN
2015 Impact Factor: 0.997
2015 SCImago Journal Rankings: 0.461
References

 

DC FieldValueLanguage
dc.contributor.authorYip, HKen_HK
dc.contributor.authorLam, WTCen_HK
dc.contributor.authorSmales, RJen_HK
dc.date.accessioned2010-09-06T05:41:32Z-
dc.date.available2010-09-06T05:41:32Z-
dc.date.issued1999en_HK
dc.identifier.citationBritish Dental Journal, 1999, v. 187 n. 5, p. 265-270en_HK
dc.identifier.issn0007-0610en_HK
dc.identifier.urihttp://hdl.handle.net/10722/65853-
dc.description.abstractObjective: In this investigation, the in vitro sustained fluoride release, weight loss and erosive wear of three conventional glass ionomer cements (Fuji IX, ChemFil Superior, Ketac-Silver), three resin-modified glass ionomer cements (Fuji II LC, Vitremer, Photac-Fil), a polyacid-modified resin composite (Dyract), and a resin composite control material (Z100) were compared. Methods: The amounts of fluoride released and weight changes were measured for 12 weeks using a fluoride electrode with TISAB III buffer. After 12 weeks, the specimens were recharged with fluoride using 2 mL of 1.23% APF gel. The recharged specimens were assessed for the amounts of fluoride released and weight changes over another 12 weeks. At the end of the experiment, the specimens were examined with SEM and surface profilometry. Results: All materials, with the exception of Z100, showed the highest initial fluoride release rates during the first 2 days, dropping quickly over 2 weeks and becoming largely stabilised after 5 weeks, in an exponential mode. The recharging of the specimens with APF gel caused a large increase in the amounts of fluoride released during the first 2 days only. Analyses for all cements showed strong correlations between mean weight loss and cumulative fluoride release over a 5-week period following the application of the APF gel. SEM and surface profilometry found that roughness increased from the polyacid-modified resin composite to the conventional glass ionomer cements. Conclusions: APF gel caused erosive wear of the glass ionomer cements especially, and the wear correlated well with the weight losses. To minimise surface erosion, APF gel should not be used on these cements, especially as the recharging effects are transitory. © British Dental Journal 1999.en_HK
dc.languageengen_HK
dc.publisherNature Publishing Group. The Journal's web site is located at http://www.bdj.co.uken_HK
dc.relation.ispartofBritish Dental Journalen_HK
dc.titleFluoride release, weight loss and erosive wear of modern aesthetic restorativesen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0007-0610&volume=187&spage=265&epage=270&date=1999&atitle=Fluoride+release,+weight+loss+and+erosive+wear+of+modern+aesthetic+restorativesen_HK
dc.identifier.emailYip, HK: kevin.h.k.yip@hkusua.hku.hken_HK
dc.identifier.authorityYip, HK=rp00027en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0033546798en_HK
dc.identifier.hkuros51812en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0033546798&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume187en_HK
dc.identifier.issue5en_HK
dc.identifier.spage265en_HK
dc.identifier.epage270en_HK
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridYip, HK=25423244900en_HK
dc.identifier.scopusauthoridLam, WTC=9535924800en_HK
dc.identifier.scopusauthoridSmales, RJ=7005372382en_HK

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