Study of Using Internal Thread Whirling in Machining Titanium Dental Implant

Abstract:

Swiss-type lathe is the machine tool of choice in machining titanium dental implants. It is able to do turning, drilling, and milling in a single setup. One of the more challenging processes is the internal threading at one end of the dental implants. Threading in titanium at as little as M1.4 and as deep as 6mm possesses certain difficulties in terms of chips disposal, BUE, tool wear, and tool breakage. The study focuses on internal threading whirling. A new method of applying cutting fluid jet has been tested. The experiments have been done by using the Swiss-type lathe, Star SR-20R.

• Periodical: Applied Mechanics and Materials (Volumes 268-270)
• Pages: 436-441
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.268-270.436
• Online since: December 2012
• Authors: E. Hsung Cheng, Tung Lin Tsai, Ming Jer Lin, Xian Ru Wu, Nan Ming Yeh, Bo Wei Pan, Yi Chin Chen, Shien Nan Kuo
• Keywords: Dental Implant, Internal Thread Whirling

References

[1] E.O. Ezugwu, Z.M. Wang, Titanium Alloys and Their Machinability ¾¾ A Review, Journal of Materials Processing Technology, (1997) 68:262-274.

DOI: 10.1016/s0924-0136(96)00030-1

[2] M. Rahman, Y.S. Wong, and A.R. Zareena, Machinability of Titanium Alloys, JSME International Journal, Series C, Vol. 46, No. 1 (2003)107-115.

DOI: 10.1299/jsmec.46.107

[3] P.J. Henry, W.R. Laney, T. Jemt, et al, Osseointegrated implant for single tooth replacement: A prospective 5-year multicenter study, Int. J. Oral Maxillofac Implants, Vol. 11 (1999) 450-455.

[4] C.J. Goodacre, J.Y. Kan, and K. Rungcharassaeng, Clinical complications of Osseointegrated implants, J. Prosthet. Dent. Vol. 81 (1999) 537-552.

DOI: 10.1016/s0022-3913(99)70208-8

[5] L. Jorneus, M. Eng, T. Jemt, et al, Loads and designs of screw joints for single crowns supported by osseointegrated implants, Int. J. Oral Maxillofac Implants, Vol. 7 (1992) 353-359.

[6] J. Haack, R. Sakaguchi, S. Ting, et al. Elongation and preload stress in dental implant abutment screws, Int. J. Oral Maxillofac Implants, Vol. 10 (1995) 529-536.

[7] B.Y. Hwang, Y.S. Kim, and C.W. Kim, Study of screw loosening in cementation type implant abutment, J. Korean Acad Prosthodont, Vol. 38 (2000) 765-781.

[8] P. Binon, The external hexagonal interface and screw-joint stability: A primer on threaded fasteners in implant dentistry, Quintessence Dent. Technol. Vol. 23 (2000) 91-105.

[9] W.C. Martin, R.D. Woody, B.H. Miller, and A.W. Miller, Implant abutment screw rotations and preloads for four different screw materials and surfaces, J. Prosthet. Dent. Vol. 86 No. 1 (2001) 24-32.

DOI: 10.1067/mpr.2001.116230

[10] H. Yousef, A. Luke, J. Ricci and S. Weiner, Analysis of changes in implant screws subject to occlusal loading: A preliminary analysis, J. Implant Dentistry, Vol. 14 No. 4 (2005) 378-385.

DOI: 10.1097/01.id.0000187902.68436.e4