Comparison of Shear Bond Strength and Adhesive Remnant Score of Orthodontic Brackets Bonded with Three Different Orthodontic Adhesives: An In-vitro Study
Published: November 1, 2023 | DOI: https://doi.org/10.7860/JCDR/2023/65619.18723
Kavitha Ramsundar, Ravindra Kumar Jain
1. Resident, Department of Orthodontics, Saveetha Dental College and Hospital, Chennai, Tamil Nadu, India.
2. Professor, Department of Orthodontics, Saveetha Dental College and Hospital, Chennai, Tamil Nadu, India.
Correspondence
Dr. Ravindra Kumar Jain,
Professor, Department of Orthodontics, Saveetha Dental College and Hospital, 162, Poonamallee High Road, Velappan Chavadi, Chennai-600096, Tamil Nadu, India.
E-mail: ravindrakumar@saveetha.com
Introduction: Adequate bond strength between orthodontic brackets and enamel is necessary to withstand masticatory forces. Priming involves applying a primer before using the adhesive as a separate step. To reduce bonding time, manufacturers have introduced self-priming adhesives.
Aim: To evaluate the Shear Bond Strength (SBS) and Adhesive Remnant Index (ARI) scores of a Bis-GMA based self-priming adhesive (Orthofix SPA, Anabond) and compare it with a 2-Hydroxyethyl Methacrylate (HEMA) based self-priming adhesive (Aqualine LC, Tomy ortho) and a Bis-GMA containing primer-based orthodontic adhesive (Transbond XT, 3M).
Materials and Methods: The present In-vitro study was conducted at the White Lab., Saveetha Dental College and Hospitals, Chennai, Tamil Nadu, India, from December 2020 to January 2021. A total 54 freshly extracted premolar teeth were collected and divided into three groups (Group A - Orthofix SPA, Group B - Transbond XT, and Group C - Aqualine LC) based on the adhesive used. A 0.022 metal orthodontic brackets were bonded, and SBS and ARI scores of the samples were assessed. The Shapiro-Wilk test for normality was conducted. One-way Analysis of Variance (ANOVA) was used to compare the mean and standard deviation of SBS values and ARI scores among the three groups, and a post-hoc Tukey test was performed for inter group comparisons.
Results: Significant inter group differences were observed (p=0.004). Group A had lower SBS than Groups B and C. Significant inter group differences (p-value of 0.003) in ARI scores were noted, with Group A having the lowest scores.
Conclusion: The Bis-GMA self-priming adhesive (Orthofix SPA) exhibited lower SBS and ARI scores compared to commercially available HEMA-based self-priming adhesive systems and primer-based Bis-GMA adhesive systems.
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