SPEED Users Guide

16 REBONDING OR RE-POSITIONING SPEED ATTACHMENTS Any bondable SPEED attachment may be rebonded successfully by following the proper technique. Rebonding though, may compromise bond strength relative to that achieved with an unused attachment. Remove excess adhesive from the tooth, using a finishing burr in a high speed rotor. At low speed, reduce the bulk of adhesive to as thin a layer as possible without going through to the enamel. This, of course, is only possible if there is a good pad of adhesive on the tooth. If the tooth surface is exposed at any point, the tooth must be fully reprepared. If the bracket is to be rebonded, carefully remove all adhesive from the mesh by Micro-Etching. Care should be taken not to damage the mesh surface as such damage may result in reduced bond strength or leakage. Care should also be taken not to direct the Micro-Etching nozzle toward the Spring Clip, as the etching medium may damage, or foul the Spring Clip. Soak the bracket in acetone. Rebond the attachment in the usual manner. Hardened excess sealant or composite may prevent the Spring Clip from opening. A carbide burr may be used to carefully remove the sealant or composite. The Spring Clip can then be gently teased into the open position. BONDING SPEED ATTACHMENTS OPENING “CLOGGED” SPRING CLIPS Should an attachment inadvertently become clogged during bonding, one should never attempt to “force” open the Spring Clip. Instead, a Multi-Fluted FG 7901 Flame Jet Carbide burr or FG 7904 Pear Jet Carbide burr may be run “dry” between the Spring Clip and base to remove the hardened adhesive. The Spring Clip may then be teased open using the usual technique.

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