Patent ID: 6264469
Filing Date: 2001-07-24
Classification: A61C

Abstract:
An orthodontic bracket comprising(a) a base body made from plastic, the plastic being a highly cross-linked polyurethane made by addition polymerization terminated at a temperature corresponding at least to body temperature, and the base body having(1) a visible face,(2) a base surface spaced therefrom,(3) side faces extending between the visible face and the base surface, and(4) at least one slot-shaped recess extending between two oppositely lying side faces from the visible face towards the base surface,(b) an insert element arranged in the recess, the insert element having a hardness value which is at most equal to the hardness value of the plastic of the base body and a lower friction coefficient than the plastic of the base body,(1) the plastic base body being molded onto the insert element, and(c) a coating containing particles applied to at least some regions of the base surface.