Abstract: Base for an orthodontic appliance includes a base surface adapted to be attached to a tooth and a plurality of protrusions protruding from the base surface and extending along a first direction substantially from a first edge of the base surface to a second edge of the base surface, a second direction being defined as perpendicular to the base surface, wherein the distance between two of the protrusions in a plane substantially perpendicular to the first direction along at least a portion of the protrusions is smaller than the distance between the two protrusions at the base surface, and wherein the distance between two of the protrusions in planes substantially perpendicular to the second direction at the first edge and the second edge is larger than a distance between the two protrusions in a plane between the first and the second edge.

Abstract: Base for an orthodontic appliance, comprising a base surface adapted to be attached to a tooth and a plurality of protrusions protruding from said base surface and extending along a first direction substantially from a first edge of the base surface to a second edge of the base surface, a second direction being defined as perpendicular to said base surface, wherein the distance between two of said protrusions in a plane substantially perpendicular to said first direction along at least a portion of said protrusions is smaller than the distance between said two protrusions at the base surface, and wherein the distance between two of said protrusions in planes substantially perpendicular to said second direction at said first edge and said second edge is larger than a distance between said two protrusions in a plane between said first and said second edge.

Abstract: Orthodontic device comprising an orthodontic arch or a wire and a set of brackets which have conduits through which said orthodontic arch passes characterized in that either of the following: a surface of the conduit of at least one bracket that is aimed to come into contact with the wire, or a region of the wire in contact with at least one bracket, has a textured surface with protruding regions and sunken regions for reducing the contact surface between the bracket and the orthodontic arch, the surface of the wire or of the bracket aimed to come into contact with the textured surface being of smooth nature.