書誌事項
- タイトル別名
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- Inner Surface Working Accuracy of Titanium Crowns Milled with CAD/CAM.
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The titanium crown is rapidly replacing other metallic crowns today. However, it has a crucial problem; the crown worked in a conventional way is less adaptable. To solve that problem, a new technique employing CAD/CAM with a laser measuring system has been developed to produce an accurate and desirable inner surface of the titanium crown. Then a coordinate measuring machine was set to measure and contrast two of the candidates:<BR>1. The inner surface of the titanium crown worked in the conventional way:<BR>Laser beams were applied to the titanium crown at 90°to the long axis of the tooth and the inner surface was finished with the ball-end-mill of a 2.0-mm diameter.<BR>2. The inner surface of the titanium crown worked in the new technique:<BR>The model abutment was set at a 10°angle to apply the laser beams effectively to the cervical part of the titanium crown for measuring the accuracy. The same ball-end-mill was used to rough-finish it, and then the 1.0-mm diameter one was used to elaborate it.<BR>The result showed remarkable contrasts to reveal the superiority of the new technique: the conventional way produced a significant tolerance from the occlusal area to the cervical; the new technique produced a fine marginal form and a high adaptability in the working accuracy.
収録刊行物
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- 日本補綴歯科学会雑誌
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日本補綴歯科学会雑誌 43 (1), 160-170, 1999
社団法人 日本補綴歯科学会
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詳細情報 詳細情報について
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- CRID
- 1390282679386650496
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- NII論文ID
- 10008172352
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- NII書誌ID
- AN00197911
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- ISSN
- 1883177X
- 03895386
- http://id.crossref.org/issn/1059941X
- http://id.crossref.org/issn/03895386
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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
- Crossref
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- 使用不可