Compositions: coating or plastic – Coating or plastic compositions – Dental
Patent
1986-03-24
1987-07-21
Bell, Mark L.
Compositions: coating or plastic
Coating or plastic compositions
Dental
501 10, 4332021, C03C 1002
Patent
active
046816330
ABSTRACT:
Calcium phosphate glass-ceramics of high strength and toughness is disclosed. These materials are excellent for artificial dental or bone materials. The strength and toughness of these materials are improved substantially in comparison with conventionally used calcium phosphate glass-ceramics by adding rare earth oxide in them. For dental materials, good aesthetic appearance to natural teeth is also obtained by adding one type, or two or more types of compounds selected from oxides of iron, manganese, cerium, titanium, nickel, zinc, cobalt, tungsten, chromium, and vanadium as color component. Also, if necessary, Al.sub.2 O.sub.3 and/or SiO.sub.2 is contained as coloring assistant agent in that composite. Moreover it is possible to adjust the color tone of each individual's teeth. The rare earth oxide, coloring component, and coloring assistant agent added are incorporated in crystals of calcium phosphate. Consequently, they cause no elution during use.
REFERENCES:
patent: 3400097 (1968-09-01), Weinstein et al.
patent: 4167417 (1979-09-01), Franz et al.
patent: 4189325 (1980-02-01), Barrett et al.
patent: 4308064 (1981-12-01), Takami et al.
patent: 4309485 (1982-01-01), Kondo et al.
patent: 4366253 (1982-12-01), Yagi
patent: 4417912 (1983-11-01), Abe
patent: 4431451 (1984-02-01), Mabie et al.
Stecher, P. G., "New Dental Materials", pub. 1980 by Noyes Data Corp., Park Ridge, N.J., p. 110.
Phillips, R. W.-"Skinner's Science of Dental Materials", 8th ed, pub. 1983, W. B. Saunders Co., Phila., p. 503.
Kihara Seiji
Mitsudoh Makoto
Takeuchi Yoshimitsu
Wakabayashi Yoh'ichi
Watanabe Akira
Bell Mark L.
Kyushu Refractories Co., Ltd.
LandOfFree
High strength calcium phosphate glass-ceramic materials does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with High strength calcium phosphate glass-ceramic materials, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High strength calcium phosphate glass-ceramic materials will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-205419