Assessing adhesive remnant removal and enamel damage with ultraviolet light: An in-vitro study.

Introduction: Our objective was to assess the amounts of adhesive remnant and enamel damage when removing composite under conventional lighting and ultraviolet (UV) light.

Methods: Thirty-eight premolars were divided into 2 groups according to the lighting used for adhesive removal. A multifluted tungsten-carbide bur at low speed was used for this process in both groups.

Differences in the force system delivered by different beta-titanium wires in elaborate designs.

Objective: Evaluation of the force system produced by four brands of b-Ti wires bent into an elaborate design.

Methods: A total of 40 T-loop springs (TLS) hand-bent from 0.017 x 0.

Segmented arch or continuous arch technique? A rational approach.

This study aims at revising the biomechanical principles of the segmented archwire technique as well as describing the clinical conditions in which the rational use of scientific biomechanics is essential to optimize orthodontic treatment and reduce the side effects produced by the straight wire technique.

Comparison of shear bond strength of orthodontics brackets on composite resin restorations with different surface treatments.

Introduction: Orthodontic patients frequently present composite resin restorations, however there are few studies that evaluate the best way for orthodontic bonding in this situation.

Objective: The objective of this work was to evaluate the bond strength of orthodontic brackets in resin restorations with surface treatment.

Methods: Fifty one bovine lower incisors were randomly divided into three groups.

Influence of exogenous pigmentation on the optical properties of orthodontic elastic ligatures.

Objectives: The aim of this study was to assess the optical properties of orthodontic elastic ligatures under the influence of exogenous pigments contained in the daily diet.

Material And Methods: For the analysis, colorless (clear) elastic segments (ORTHO Organizers, lot 660625A10) were used as received from the manufacturer, and were divided into 8 groups of 3 segments each. Each group was immersed in 200 mL of a solution containing a determined substance, as follows: distilled water (control group), Coca-Cola®, Pomarola brand tomato sauce (Cica®), açai, Jasmine® brand green tea, Royal Blend® black tea brand, Pilão® brand coffee and Palmares® wine brand.

The importance of the diagnostic setup in the orthodontic treatment plan.

The aim of this study was to address the importance of the diagnostic setup by examining two cases where diagnostic setups were made in order to determine the treatment plan. The diagnostic setup is a fundamental aid and should be used when there are doubts in the orthodontic planning.