File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: The effects of two cavity preparation methods on the longevity of glass ionomer cement restorations: An evaluation after 12 months

TitleThe effects of two cavity preparation methods on the longevity of glass ionomer cement restorations: An evaluation after 12 months
Authors
Issue Date2002
PublisherAmerican Dental Association. The Journal's web site is located at http://jada.ada.org
Citation
Journal Of The American Dental Association, 2002, v. 133 n. 6, p. 744-751 How to Cite?
AbstractBackground. The authors undertook a study to evaluate the effect of two cavity preparation methods on the initial survival of two more-viscous glass ionomer cements, or GICs, placed in the occlusal surfaces of permanent molar teeth. Methods. Three dentists placed 149 restorations in 68 adult patients in a hospital clinic. They used either atraumatic restorative treatment, or ART, or conventional cavity preparation methods to place two encapsulated esthetic conventional GICs: Fuji IX GP (GC International Corp., Tokyo) and Ketac-Molar Aplicap (3M ESPE, Seefeld, Germany). For comparison, they used high-copper-content GK Amalgam Alloy (Advanced Technology & Materials Co. Ltd., Beijing) in conventional preparations. They evaluated the restorations using both direct and indirect observation methods. Results. Cavity preparations for which the authors used ART hand instruments took approximately twice as long to complete as did those for which they used conventional rotary instruments. After 12 months, no restorations had failed, but restorations comprising both GICs showed early losses of adjacent sealant material. Both GICs also showed relatively high restoration wear. At 12 months, the mean cumulative net occlusal wear for Fuji IX GP was 77 ± 47 micrometers, and for Ketac-Molar 83 ± 51 μm, without statistical significance (P > .05). Color matching improved significantly with time (P < .001), without significant differences in color between the two GICs by 12 months (P = .09). The amalgam alloy had minor surface tarnishing and marginal discrepancies increased with time (P < .001). Conclusions. All of the occlusal restorations were rated as satisfactory after 12 months. The method of cavity preparation did not affect the restoration performance of the GICs. However, their deterioration requires long-term monitoring. Clinical Implications. The more viscous GICs appear initially suitable for restricted use in clinical practice when placed using either of two cavity preparation methods in the occlusal surfaces of permanent molar teeth in adults.
Persistent Identifierhttp://hdl.handle.net/10722/66546
ISSN
2015 Impact Factor: 1.767
2015 SCImago Journal Rankings: 0.661
References

 

DC FieldValueLanguage
dc.contributor.authorYip, KHKen_HK
dc.contributor.authorSmales, RJen_HK
dc.contributor.authorGao, Wen_HK
dc.contributor.authorPeng, Den_HK
dc.date.accessioned2010-09-06T05:47:16Z-
dc.date.available2010-09-06T05:47:16Z-
dc.date.issued2002en_HK
dc.identifier.citationJournal Of The American Dental Association, 2002, v. 133 n. 6, p. 744-751en_HK
dc.identifier.issn0002-8177en_HK
dc.identifier.urihttp://hdl.handle.net/10722/66546-
dc.description.abstractBackground. The authors undertook a study to evaluate the effect of two cavity preparation methods on the initial survival of two more-viscous glass ionomer cements, or GICs, placed in the occlusal surfaces of permanent molar teeth. Methods. Three dentists placed 149 restorations in 68 adult patients in a hospital clinic. They used either atraumatic restorative treatment, or ART, or conventional cavity preparation methods to place two encapsulated esthetic conventional GICs: Fuji IX GP (GC International Corp., Tokyo) and Ketac-Molar Aplicap (3M ESPE, Seefeld, Germany). For comparison, they used high-copper-content GK Amalgam Alloy (Advanced Technology & Materials Co. Ltd., Beijing) in conventional preparations. They evaluated the restorations using both direct and indirect observation methods. Results. Cavity preparations for which the authors used ART hand instruments took approximately twice as long to complete as did those for which they used conventional rotary instruments. After 12 months, no restorations had failed, but restorations comprising both GICs showed early losses of adjacent sealant material. Both GICs also showed relatively high restoration wear. At 12 months, the mean cumulative net occlusal wear for Fuji IX GP was 77 ± 47 micrometers, and for Ketac-Molar 83 ± 51 μm, without statistical significance (P > .05). Color matching improved significantly with time (P < .001), without significant differences in color between the two GICs by 12 months (P = .09). The amalgam alloy had minor surface tarnishing and marginal discrepancies increased with time (P < .001). Conclusions. All of the occlusal restorations were rated as satisfactory after 12 months. The method of cavity preparation did not affect the restoration performance of the GICs. However, their deterioration requires long-term monitoring. Clinical Implications. The more viscous GICs appear initially suitable for restricted use in clinical practice when placed using either of two cavity preparation methods in the occlusal surfaces of permanent molar teeth in adults.en_HK
dc.languageengen_HK
dc.publisherAmerican Dental Association. The Journal's web site is located at http://jada.ada.orgen_HK
dc.relation.ispartofJournal of the American Dental Associationen_HK
dc.titleThe effects of two cavity preparation methods on the longevity of glass ionomer cement restorations: An evaluation after 12 monthsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0002-8177&volume=133&spage=744&epage=752&date=2002&atitle=The+Effects+of+Two+Cavity+Preparation+Methods+on+the+Longevity+of+Glass+Ionomer+Cement+Restorations:+An+Evaluations+after+12-monthsen_HK
dc.identifier.emailYip, KHK: kevin.h.k.yip@hkusua.hku.hken_HK
dc.identifier.authorityYip, KHK=rp00027en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0036616288en_HK
dc.identifier.hkuros80790en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0036616288&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume133en_HK
dc.identifier.issue6en_HK
dc.identifier.spage744en_HK
dc.identifier.epage751en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridYip, KHK=25423244900en_HK
dc.identifier.scopusauthoridSmales, RJ=7005372382en_HK
dc.identifier.scopusauthoridGao, W=36045713300en_HK
dc.identifier.scopusauthoridPeng, D=36875199300en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats