Abstract:
Background/purpose:To assess the usefulness of plastic bracket primer (PBP) for improving the bond strength of plastic brackets (PBs) using three types of orthodontic brackets, including PBs, metal brackets (MBs), and ceramic brackets (CBs). Materials and methods:A total of 162 premolars were gathered and divided equally into six groups of 27. Three groups were tested with the application of PBP (PB+, MB+, and CB+), and three groups were tested without primer (groups PB-, MB-, and CB-). All the groups were bonded using BeautiOrtho Bond II self-etching adhesive. The shear bond strength (SBS) was measured and the bond failure mode was evaluated using the adhesive remnant index after debonding. Results:There were significant differences in the mean SBS between groups PB-, MB and CB-, between PB+ and CB+, and between MB+ and CB+. Group PB + had a significantly higher mean SBS than group PB-. The occurrence of bond failure at the enamel and adhesive interface was more frequent in groups PB+ and CB- than in group PB-; and in groups PB+ and CB + than in group MB+. Conclusion:Plastic bracket primer can increase the bond strength of PBs to the level of metal brackets, but not to the level of ceramic brackets.
journal_name
J Dent Scijournal_title
Journal of dental sciencesauthors
Saito H,Miyagawa Y,Endo Tdoi
10.1016/j.jds.2020.07.014subject
Has Abstractpub_date
2021-01-01 00:00:00pages
424-430issue
1eissn
1991-7902issn
2213-8862pii
S1991-7902(20)30172-0journal_volume
16pub_type
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