Evaluation of dental enamel union resistance containing remaining resins from debonded orthodontic bracket after different treatments and time periods
International Journal of Development Research
Evaluation of dental enamel union resistance containing remaining resins from debonded orthodontic bracket after different treatments and time periods
Received 10th December, 2017; Received in revised form 26th January, 2018; Accepted 24th February, 2018; Published online 30th March, 2018
Copyright © 2018, Eduardo Martinez Martinez et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Dental treatment takes place in a multidisciplinary way, being fundamental the association between different specialties to reach aesthetic and functional excellence. The aim of this study was to evaluate dental enamel bond strength from resinous extensions remaining from orthodontic bracket debond, after different treatments and periods of storage. 60 dental units were randomly divided into 3 treatment groups: MD (multilaminated drill), MD + B (multilaminated drill followed by aluminum oxide blasting) and C (control). All groups had orthodontic brackets bonded and then debonded. After each treatment, they were restored with composite resin. Subsequently, all groups were stored in distilled water: T1 (24 hours) and T2 (30 days). After storage, all groups were submitted to the mechanical shear test. According to the results, group C obtained the lowest shear values (T1 = 8.22 MPa and T2 = 8.63 MPa), followed by MD group (T1 = 10.42 MPa and T2 = 10.72 MPa) and, with the highest values, the MD + B group (T1 = 14.93 MPa and T2 = 15.63 MPa). It can be concluded that there are statistically significant differences between surface treatments, however, storage time, did not show changes in strength values.
