Shear Bond Strength of Orthodontic Brackets to Composite Restorations Using Universal Adhesive
Journal Title: Journal of Dentistry, Shiraz University of Medical Sciences - Year 2019, Vol 20, Issue 2
Abstract
Statement of the Problem: The dental adhesives may have the potential to increase the bond strength of orthodontic brackets to composite resin and it would be highly desirable if adequate bracket-composite bond strength could be yielded by using these adhesives without the need for surface roughening. Purpose: The purpose of this study was to measure the shear bond strength (SBS) of metal brackets to composite restorations by use of a universal adhesive compared with a conventional adhesive. Materials and Method: In this in vitro, experimental study, 45 composite discs measuring 6 mm in diameter and 4 mm in thickness were fabricated and assigned to three groups (n=15). In the group 1, discs were etched with 37% phosphoric acid for 15 seconds and Scotchbond Universal was then applied. Discs were roughened by diamond bur in the group 2 and were subjected to the application of Scotchbond Universal. In the group 3, conventional adhesive (Single Bond 2) was applied after roughening the discs by diamond bur. Metal brackets were then bonded to discs and after thermocycling, the SBS was measured by an Instron machine. The mode of failure and adhesive remnant index (ARI) score were determined using stereomicroscope. Data were analyzed by SPSS version 18, one-way ANOVA, and the Kruskal Wallis test. Results: The surface roughening plus universal adhesive group showed the highest SBS (11.90 MPa) but according to one-way ANOVA, the difference in this regard among the three groups was not statistically significant (p= 0.94). Most samples showed ARI score of 4. Conclusion: Universal adhesive can provide sufficient bond strength as high as that provided by conventional adhesives for orthodontic bracket bonding to composite restorations even in absence of surface roughening by bur.
Authors and Affiliations
Soodeh Tahmasbi, Mohammadreza Badiee, Maryam Modarresi
Keywords
Related Articles
- EP ID EP580065
- DOI -
- Views 69
- Downloads 0
The Effect of Incorporation of 0.5 %wt. Silica Nanoparticles on the Micro Shear Bond Strength of a Resin Modified Glass Ionomer Cement
Statement of the Problem: The clinical success of glass ionomer restorations depends on the strength of resin-modified glass ionomer (RMGI) cement bonding to dentin and there is limited information available regarding th...
The Protective Role of Front-Closed and Front-Open Gowns Against Staphylococcus Aureus Contamination of Dental Students before and after Restorative Treatments
Statement of the Problem: Due to the close contact with patients during dental treatments, dentists and those affiliated to the dental profession are at higher risk for various infections. Infection prevention in dentist...
Evaluation of the Effects of Three Plant Species (Myrtus Communis L., Camellia Sinensis L., Zataria Multiflora Boiss.) on the Healing Process of Intraoral Ulcers in Rats
Statement of the Problem: Use of traditional medicine to relieve human sufferings has a very long history. The effects of these plants in wound curing and subsequently making the best mucosa patch for treatment of oral u...
The Effect of CuO Nanoparticles on Antimicrobial Effects and Shear Bond Strength of Orthodontic Adhesives
Statement of the Problem: Orthodontic appliances facilitate microbial plaque accumulation and increase the chance of white spot lesions. There is a need for new plaque control methods independent of patient's cooperation...
Tapia’s Syndrome after Cosmetic Malar Augmentation: a Case Report
Tapia’s syndrome is an infrequent complication of airway manipulation. It is usually due to an extra-cranial ipsilateral injury to the hypoglossal nerve and the recurrent laryngeal branch of the vagal nerve, which can ha...