Comparative evaluation of two step bonding system and conventional bonding system on shear bond strength of orthodontic brackets - an invitro study

Background: Technological and material advancements in Orthodontics has made possible a constant improvement in the quality of orthodontic treatment. Recently, more advanced self-etching adhesive materials have been used by minimizing the requirement for priming and etching lowering the chance of contamination and shortens bonding times. The current study involves the use of new self-priming adhesive resin AQUALINE LC, reducing the chair side time. Aims & Objectives: To evaluate light cure adhesive resins' shear bond strength both with and without primer. to evaluate three distinct light-cure adhesive resins' shear bond strengths both with and without primer. Material & Methods: 75 non-carious, non-fluorosed premolars that had been therapeutically removed were used in the investigation. Teeth were separated into 5 groups. Aqualine LC in Group A; Transbond XT with Primer is in Group B; Transbond XT without Primer is in Group C; Enlight with primer is in Group D; and Enlight without primer is in Group E. Results:Aqualine LC (Group A), Transbond XT with primer (Group B), Transbond XT without (Group C), Enlight with primer (Group D), and Enlight without primer (Group E) have mean values of 5.8713, 6.0840, 5.174, 5.573, and 4, respectively. This shows that, compared to all other groups with and without primer, the overall mean of Enlight without primer has the lowest bond strength, followed by Transbond XT without primer, Enlight with primer, Aqualine LC, and Transbond XT with primer. Conclusion: All of the primers utilized in the study (Aqualine LC, Transbond XT, and Enlight) had bond strengths that were clinically acceptable.