Dentistry – Orthodontics – Bracket
Patent
1987-02-17
1990-03-06
Morris, Theodore
Dentistry
Orthodontics
Bracket
51295, A61D 500, B24B 100
Patent
active
049061852
ABSTRACT:
A manufacture for orthodontic bracket application and removal, employing an orthodontic bracket adhesive containing a non-toxic, inorganic filler which is insoluble in mouth fluids and has a Mohs hardness less than about 4.5, together with an abrasive for removal of the adhesive. The abrasive is a non-toxic, inorganic material having a Mohs hardness greater than that of the adhesive filler but less than about 5.
REFERENCES:
patent: 4138229 (1979-02-01), Tadokoro
patent: 4435160 (1984-03-01), Randklev
patent: 4695251 (1987-09-01), Randklev
Cleveland David R.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Morris Theodore
Sell Donald M.
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