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学科主题: 口腔医学
题名:
The effects of two cavity preparation methods on the longevity of glass ionomer cement restorations - An evaluation after 12 months
作者: Yip, KHK1; Smales, RJ1; Peng, D1
刊名: JOURNAL OF THE AMERICAN DENTAL ASSOCIATION
发表日期: 2002-06-01
卷: 133, 期:6, 页:744-751
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology
类目[WOS]: Dentistry, Oral Surgery & Medicine
研究领域[WOS]: Dentistry, Oral Surgery & Medicine
关键词[WOS]: ORAL HEALTH-PROGRAM ; ART RESTORATIONS ; SEALANTS ; ZIMBABWE ; SURVIVAL ; CARIES
英文摘要:

Background. 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 mum, 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.

语种: 英语
WOS记录号: WOS:000176203700023
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.bjmu.edu.cn/handle/400002259/50407
Appears in Collections:北京大学口腔医学院_口腔修复科_期刊论文

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作者单位: 1.Univ British Columbia, Fac Dent, Vancouver, BC V5Z 1M9, Canada
2.Beijing Med Univ, Sch Stomatol, Dept Prosthodont, Beijing 100083, Peoples R China

Recommended Citation:
Yip, KHK,Smales, RJ,Peng, D. The effects of two cavity preparation methods on the longevity of glass ionomer cement restorations - An evaluation after 12 months[J]. JOURNAL OF THE AMERICAN DENTAL ASSOCIATION,2002,133(6):744-751.
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