Titanium orthodontic applicances

Orthodontic appliances formed of a titanium alloy which substantially avoids toxic or allergic reactions in patients containing a beta -stabilizing element including at least 12 wt% molybdenum to produce a stable beta -monophase at body temperature are disclosed. The yield strength of the titanium a...

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Bibliographic Details
Main Authors NISHI, KIKUO, ORIKASA, MASAAKI, MOTTATE, MIKIO
Format Patent
LanguageEnglish
French
German
Published 07.11.2001
Edition7
Subjects
ALLOYS
APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
CHEMISTRY
DENTISTRY
FERROUS OR NON-FERROUS ALLOYS
HUMAN NECESSITIES
HYGIENE
MEDICAL OR VETERINARY SCIENCE
METALLURGY
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Summary:Orthodontic appliances formed of a titanium alloy which substantially avoids toxic or allergic reactions in patients containing a beta -stabilizing element including at least 12 wt% molybdenum to produce a stable beta -monophase at body temperature are disclosed. The yield strength of the titanium alloy is within the range 1150 to 1450 MPa. The tensile strength of the titanium alloy is within the range 1350 to 1950 MPa. The elongation of the titanium alloy is within the range 10 to 14%. The titanium alloy may also contain about 5 wt% zirconium as another beta -stabilizing element. It may also contain about 3 wt% aluminum to improve age hardenability by strengthening the alpha -phase.
Bibliography:Application Number: EP19940302541