Objective: To test the hypothesis that there is no difference between the action of at-home and in-office vital bleaching on the shear bond strength of metallic brackets bonded with composite resin 24 hours after bleaching. Materials and Methods: Forty-five human upper premolars were randomly divided into three groups: (1) control, (2) 10% carbamide peroxide at-home bleached, and (3) 35% hydrogen peroxide in-office bleached. Twenty-four hours after bleaching the teeth were pumiced, bonded with metallic brackets, and stored in distilled water. One day after bonding the shear bond strength of the brackets was determined. Results: The mean shear bond strength of Group 1 (control) and Group 2 (carbamide peroxide bleached) were not statistically different. Group 3 (hydrogen peroxide bleached) had a significantly lower mean shear bond strength than Group 1 and Group 2. Conclusions: The hypothesis is rejected. Use of 10% carbamide peroxide bleaching does not significantly alter shear bond strength values. On the other hand, use of 35% hydrogen peroxide bleaching significantly reduces these values and diminishes the amount of resin remnant on the tooth surface after bracket debonding. (Angle Orthod. 2009;79:122-126.)

Hypnosis is a valuable tool in the management of patients who undergo surgical procedures in the maxillofacial complex, particularly in reducing and eliminating pain during surgery and aiding patients who have dental fear and are allergic to anesthesia. This case report demonstrates the efficacy of hypnosis in mitigating anxiety, bleeding, and pain during dental surgery without anesthesia during implant placement of tooth 14, the upper left first molar.

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The search for a harmonious smile associated with minimally invasive and painless procedures, made the ceramic laminates take on a prominent role in facial aesthetics and consequently in smile aesthetics. The advances in adhesive techniques, ceramic materials and technologies associated with their manufacture, have made ceramic contact lenses a safe and predictable alternative for rehabilitation in cases of dental diastemas, restoring color, shape and position in the arch. Therefore, this case report aimed to demonstrate the application of porcelain veneers in closing diastemas in order to optimize the treatment. It was observed, with the clinical case presented, a very satisfactory result from the aesthetic and functional point of view.

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