Studies on dental high-speed cutting of commercial pure titanium (Ti) and free-machining titanium (DT-2F).
Some dental prostheses are formed by machining. The purpose of this study was to evaluate the dental high-speed cutting behaviour of free-machining titanium (Ti), the ease in cutting of which is metallurgically improved. Weight-load cutting tests were performed on commercial pure Ti and free-machining Ti, using a diamond point and a carbide burr. It became evident that the cutting effectiveness of two rotary cutting instruments on free-machining Ti was superior to that on commercial pure Ti due to the formation of accelerated cut debris. Cutting of free-machining Ti resulted in less damage of the carbide burr, compared with the cutting of commercial pure Ti. These results suggest that free-machining Ti is a suitable workpiece for dental Ti-based machined prostheses.
Taira
M
M
Department of Dental Materials Science and Technology, Osaka University Faculty of Dentistry, Suita, Japan.
Okazaki
M
M
Takahashi
J
J
Yamaki
M
M
D002244:Carbon; D017076:Computer-Aided Design; D003754:Dental High-Speed Equipment; D003764:Dental Materials / Q000737:chemistry; D017266:Dental Prosthesis; D018130:Diamond; D005069:Evaluation Studies as Topic; D005240:Feasibility Studies; D006244:Hardness; D008669:Metallurgy; D008855:Microscopy, Electron, Scanning; D013314:Stress, Mechanical; D013499:Surface Properties; D014025:Titanium / Q000737:chemistry
D003764:Dental Materials; D002244:Carbon; D018130:Diamond; D014025:Titanium