書誌事項
- タイトル別名
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- Adaptation of Ceramic Crowns Fabricated by Dental CAD/CAM "Cerec 2".
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The purpose of this study was to examine the marginal and internal fit of all ceramic crowns fabricated by dental CAD/CAM “Cerec 2” system. This system was also compared with the laboratory heat-press technique “IPS Empress 2” system.“Cerec 2” crowns were made under two test conditions of spacer values; 1) 0μm group (n=10) and 2) 30μm group (n=10). On the other hand, “IPS Empress 2”crowns were made according to the manufac-uturers'instructions (n=10). All of test crowns were seated on the preparations with ad-hesive cement. The specimens were cut mesiodistally at the central portion. The thickness of resin cement layer at seven measuring points on cut surfaces was measured using a measuring microscope. In addition, when applying “Cerec 2” system, chair time from tooth preparation to cementation was measured.<BR>The findings are as follows;<BR>1. The overall mean thickness of cement layer of “Cerec 2” crowns was 222±57μm forthe Qum group and 193±32μm for the 30μm group. These values were significantly thickerthan that of “IPS Empress 2” crowns (125±37μm)(p<0.01). However, there was no significantdifference (p>0.01) in marginal fit between the 30μm group of “Cerec 2” crowns (100±58μm and 105±65μm) and “IPS Empress 2” crowns (90.5±63μm and 123±73μm).<BR>2. Average chair time for “Cerec 2” chair-side restoration was about 90 minutes fromtooth preparation to cementation.
収録刊行物
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- 接着歯学
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接着歯学 18 (2), 119-125, 2000
日本接着歯学会
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詳細情報 詳細情報について
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- CRID
- 1390282679324267136
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- NII論文ID
- 130004047906
- 10008175714
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- NII書誌ID
- AN10044236
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- ISSN
- 21859566
- 09131655
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可