Treatment of ankylosis of the mandibular first molar with orthodontic traction immediately after surgical luxation.

The aim of this article was to report a clinical case of orthodontic treatment in a patient with Class II malocclusion and ankylosis of a maxillary first molar. Surgical luxation was performed, followed immediately by traction with an orthodontic arch with straps. The results obtained were satisfactory, and occlusal equilibrium was improved.

Shear bond strength of brackets bonded to enamel with a self-etching primer. Effects of increasing storage time after activation.

Objective: To evaluate bonding efficacy of activated Transbond Plus Self-Etching Primer (TPSEP) used at different time points with Transbond XT to bond metallic orthodontic brackets to bovine incisors.

Materials And Methods: The inferior incisors of 210 bovines were randomly divided into seven groups (n = 30). TPSEPs were mixed, activated, and kept activated for 30 (group 30), 21 (group 21), 15 (group 15), 7 (group 7), 3 (group 3), or 1 (group 1) days before bonding, and in one group (group 0) TPSEP was used immediately after mixed.