Abstract
Aim: To investigate the bond strengths achieved by using a Bleaching Curing Light (BCL) to polymerize orthodontic bonding cement. Material and Methods: 160 anterior bovine teeth were used to form 20 average sized human dental arches, and distributed into 2 groups according to which light curing method used: Group 1: BCL for 40 seconds, or Group 2: LED for 10 seconds. After storage in a controlled environment, Shear Bond Strength (SBS) and Adhesive Remnant Index (ARI) were determined. Results: Group 1 showed significantly lower SBS in the most posterior (first molar) position of the dental arch, (Group 1: 0.7 ± 1.0 MPa, Group 2: 2.9 ± 1.7 MPa, p Conclusion: Simultaneous full-arch curing of orthodontic bracket cement using a BCL is clinically acceptable in all but the most posterior locations along the dental arch.
Highlights
In the clinical practice of orthodontics, bonding of fixed appliances is one of the most time-consuming tasks
Aim: To investigate the bond strengths achieved by using a Bleaching Curing Light (BCL) to polymerize orthodontic bonding cement
The purpose of this study was to investigate the efficiency of a Bleaching Curing Light (BCL) in simulated one-arch orthodontic bracket bonding
Summary
In the clinical practice of orthodontics, bonding of fixed appliances is one of the most time-consuming tasks. Ergonomic measures such as: combined agents, pre-coated brackets, reduced curing time, and indirect bonding procedures have been proposed [1]. The use of an enlarged light-exiting tip has been reported to develop shear bond strength equal or lower to a conventional tip [2]. The use of light curing methods [6] [7] varied adhesive materials or bonding methods [8] [9], and debonding procedures have been reported [10].
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