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吸水・急加熱による短時間鋳造法の研究 第2報 吸水量による表面粗さと適合度
https://mdu.repo.nii.ac.jp/records/1201
https://mdu.repo.nii.ac.jp/records/1201421d50ab-fb37-446b-9081-a58be0a2b87e
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
matsumoto_shigaku_14-02-07.pdf (695.0 kB)
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| Item type | Journal Article(1) | |||||||
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| 公開日 | 2012-05-24 | |||||||
| タイトル | ||||||||
| タイトル | 吸水・急加熱による短時間鋳造法の研究 第2報 吸水量による表面粗さと適合度 | |||||||
| 言語 | ||||||||
| 言語 | jpn | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | 短時間鋳造 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | 吸水時間 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | 歯科鋳造 | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
| 資源タイプ | journal article | |||||||
| その他（別言語等）のタイトル | ||||||||
| その他のタイトル | Study on Shortening Casting Time through Hydrofilic and Quick Heat Up Procedures Part 2 : Surface roughness and fitness accuracy in relation to the amount of absorption | |||||||
| 著者 |
宮川, 崇
× 宮川, 崇
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| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | The five of us have investigated ways to shorten the time from investing through casting in the process of dental casting, and presented some of our findings a paper, "study on Shortening Casting Time through Hydrofilic and Quick Heat Up Procedures, Part 1: Casting method and its surface roughness and fitness accuracy," at the 8th Japan Dental Technology Society Convention. The shortened casting time method followed was to invest the wax pattern and leave it as usual for 30 minutes, then soak it in water while in the casting rings for 5 minutes. We then put the invested casting rings into a pre-heated casting furnace and (700・c for crystbalite investing material and 800・c for phosphate bonding material) for 30 minutes for mooring, after which we performed the casting. In subsequent exper iments with the shortened casting time method, we focused on the time of absorption and its effect on fitness accuracy of bridges, and obtained the following results: 1. With regard to water absorption for both crystbalite investing material and phosphate bonding investing material, There was little difference between 3 minutes and 5 minutes of soaking. 2. With regard to surface roughness, no difference was found to result from different amounts of absorption, and good values were obtained for both investments. 3. The best value with regard to fitness accuracy was measured for 3 minutes of absorption when a full crown and MOD inlay were put in crystbalite investing material. 4. With regard to fitness accuracy, both investments showed more desirable values with oval rings, which produced more uniform expansion, than with traditional cylindrical rings. The use of oval rings in both the shortened casting time mothed and the usual method showed the same values and we found the shortened cast time method is also fully suitable for bridges. 5. For both crystbalite investing material and phosphate bonding investing material, 3 minutes of soaking time produced good values. From the above results we conclude that in the shortened casting time method, 3 minutes of soaking is sufficent then performed 30 minutes after investment. | |||||||
| 書誌情報 |
松本歯学 巻 14, 号 2, p. 193-201, 発行日 1988-08-31 |
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| 出版者 | ||||||||
| 出版者 | 松本歯科大学学会 | |||||||
| ISSN | ||||||||
| 収録物識別子タイプ | ISSN | |||||||
| 収録物識別子 | 0385-1613 | |||||||
| 書誌レコードID | ||||||||
| 収録物識別子タイプ | NCID | |||||||
| 収録物識別子 | AN00232590 | |||||||
| フォーマット | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | application/pdf | |||||||
| 著者版フラグ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
