The effect of abrading and cutting instruments on machinability of dental ceramics

• Material Type: 博士論文
• Title: The effect of abrading and cutting instruments on machinability of dental ceramics
• Author/Editor: 迫田, 敏
• Author Heading: 迫田, 敏
• Publication, Distribution, etc.: Springer Nature
• Publication Date: 2020-12-02
• Publication Date (W3CDTF): 2020-12-02
• Alternative Title: 歯科用セラミックスの被削性に及ぼす研削・切削器具の影響
• Periodical title: Journal of Materials Science: Materials in Medicine
• No. or year of volume/issue: 29
• Volume: 29
• Pages: 34-
• ISSN (Periodical Title): ISSN : 1573-4838
• Degree grantor/type: Nagasaki University (長崎大学)
• Date Granted: 2020-12-02
• Dissertation Number: 乙医歯薬第61号
• Degree Type: 博士(歯学)
• Text Language Code: eng
• Subject Heading: machinability; hand-piece engine; air-turbine; abrading; cutting
• Target Audience: 一般
• Note (General): The aim was to investigate the effect of machining instruments on machinability of dental ceramics. Four dental ceramics, including two zirconia ceramics were machined by three types (SiC, diamond vitrified, and diamond sintered) of wheels with a hand-piece engine and two types (diamond and carbide) of burs with a high-speed air turbine. The machining conditions used were abrading speeds of 10,000 and 15,000 r.p.m. with abrading force of 100 gf for the hand-piece engine, and a pressure of 200 kPa and a cutting force of 80 gf for the air-turbine hand-piece. The machinability efficiency was evaluated by volume losses after machining the ceramics. A high-abrading speed had high-abrading efficiency (high-volume loss) compared to low-abrading speed in all abrading instruments used. The diamond vitrified wheels demonstrated higher volume loss for two zirconia ceramics than those of SiC and diamond sintered wheels. When the high-speed air-turbine instruments were used, the diamond points showed higher volume losses compared to the carbide burs for one ceramic and two zirconia ceramics with high-mechanical properties. The results of this study indicated that the machinability of dental ceramics depends on the mechanical and physical properties of dental ceramics and machining instruments.; 長崎大学学位論文 学位記番号:博(医歯薬)乙第61号 学位授与年月日:令和2年12月2日; Author: Satoshi Sakoda, Noriko Nakao & Ikuya Watanabe; Citation: Journal of Materials Science: Materials in Medicine, 29, art.no.34; 2018; identifier:Nagasaki University (長崎大学), 博士(歯学) (2020-12-02)
• Source: fulltext; https://nagasaki-u.repo.nii.ac.jp/?action=repository_action_common_download&item_id=26292&item_no=1&attribute_id=70&file_no=1
• Access Restrictions: インターネット公開
• Rights (production): © Springer Science+Business Media, LLC, part of Springer Nature 2018. This is a post-peer-review, pre-copyedit version of an article published in Journal of Materials Science: Materials in Medicine. The final authenticated version is available online at: http://dx.doi.org/10.1007/s10856-018-6031-y.
• Related Material: http://hdl.handle.net/10069/40440
• Related Material (DOI): 10.1007/s10856-018-6031-y
• Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）; https://irdb.nii.ac.jp
• Original Data Provider (Database): 長崎大学 : 長崎大学学術研究成果リポジトリ