Characteristics of adhesive bonding with enamel deproteinization.
| Autor: | Mahmoud GA; Mansoura University, Faculty of Dentistry, Department of Orthodontics (Mansoura, Egypt)., Grawish ME; Mansoura University, Faculty of Dentistry, Department of Oral Biology (Mansoura, Egypt)., Shamaa MS; Mansoura University, Faculty of Dentistry, Department of Orthodontics (Mansoura, Egypt)., Abdelnaby YL; Mansoura University, Faculty of Dentistry, Department of Orthodontics (Mansoura, Egypt). |
|---|---|
| Jazyk: | angličtina |
| Zdroj: | Dental press journal of orthodontics [Dental Press J Orthod] 2019 Nov 11; Vol. 24 (5), pp. 29.e1-29.e8. Date of Electronic Publication: 2019 Nov 11 (Print Publication: 2019). |
| DOI: | 10.1590/2177-6709.24.5.29.e1-8.onl |
| Abstrakt: | Objective: To evaluate the effect of using sodium hypochlorite (NaOCl) on the bond characteristics of orthodontic metal brackets bonded to enamel surface using three adhesive systems. Methods: One hundred twenty premolars were selected and randomly divided into two equal groups of 60 teeth/ each (Groups I and II). The teeth of Group I were left untreated while those of Group II were exposed to 5.25% NaOCl for 1 minute. The teeth in either group were randomly subdivided into three equal subgroups of 20 teeth/ each (A, B and C), according to the type of adhesive system used to bond the brackets. In Subgroup A, phosphoric acid + Transbond XT primer and adhesive were used. In subgroup B, Transbond Plus self-etching primer (SEP) + Transbond XT adhesive were utilized. In subgroup C, phosphoric acid + SmartBond LC adhesive were used. The shear bond strength (SBS) and the degree of adhesive penetration to enamel surface were assessed. Data analyses were performed using ANOVA, post-hoc (LSD), t and chi-square test. Results: Transbond XT had significantly higher SBS than SmartBond LC (p< 0.05). Phosphoric acid provided significantly higher SBS and degree of adhesive penetration than SEP (p< 0.05). NaOCl significantly increased SBS and degree of adhesive penetration in Subgroups B and C (p< 0.05). Conclusion: Adhesion quality of Transbond XT adhesive is better than SmartBond LC. Phosphoric acid is more effective than SEP. NaOCl enhances the bond characteristics. |
| Databáze: | MEDLINE |
| Externí odkaz: |
|