Bond strength of orthodontic brackets bonded to enamel with a self-etching primer after bleaching and desensitizer application

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ATTAR N., Korkmaz Y., Kilical Y., Saglam-Aydinatay B., Bicer C. O.

Korean Journal of Orthodontics, cilt.40, sa.5, ss.342-348, 2010 (SCI-Expanded, Scopus)

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 40 Sayı: 5
  • Basım Tarihi: 2010
  • Doi Numarası: 10.4041/kjod.2010.40.5.342
  • Dergi Adı: Korean Journal of Orthodontics
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.342-348
  • Anahtar Kelimeler: Bracket, Adhesive, Bonding, COMPOSITE RESIN, IN-VITRO, DENTIN, ADHESIVE, PEROXIDE, SENSITIVITY, AGENTS, PRODUCTS, REVERSAL, SYSTEMS
  • Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
  • Lokman Hekim Üniversitesi Adresli: Hayır

Özet

Objective The aim of this study was to compare the shear bond strengths (SBS) of orthodontic brackets bonded to enamel with a self-etching primer after bleaching, desensitizer application and combined treatment. Methods: Forty-eight premolars were randomly divided into four groups, each with n = 12 premolar samples. The four groups were; Group1: 15% hydrogen-peroxide office bleaching agent (Illuminé Office-IO), Group 2: IO + BisBlock Oxalate Dentin Desensitizer, Group 3: Bis Block Oxalate Dentin-Desensitizer, Group 4: No treatment (control). Twenty-four hours after bonding, the specimens were tested in SBS at a crosshead speed of 5 mm/min until the brackets debonded. The failure mode of the brackets was determined by a modified adhesive remnant index. Results: Bleaching, bleaching and desensitizer treatment, and desensitizer treatment alone all significantly reduced SBS of the orthodontic brackets (p = 0.001). No statistically significant difference was found between Group 1, Group 2 and Group 3 (Group 1-Group 2, p = 0.564; Group 1-Group 3, p = 0.371; Group 2-Group 3, p = 0.133). The predominant mode of failure for the treatment groups (Group1, Group 2 and Group 3) was at the enamel-adhesive interface leaving 100% of the adhesive on the bracket base. Conclusions: Bleaching and desensitizer treatment should be delayed until the completion of orthodontic treatment.