Effects of Different Adhesion Promoters and Deproteinizing Agents on the Shear Bond Strength of Orthodontic Brackets: An in Vitro Study

Abstract

Aim: The present in‑vitro study was undertaken to evaluate the effects of different adhesion promoters and deproteinizing age.

Material and Methods: One hundred human maxillary premolars, without caries or fillings, were used. The teeth were divided into 4 groups of 25, Group 1 control (37% H3PO4), Group 2 (37% H3PO4 + Ortho Solo), Group 3 (37% H3PO4 + Assure Universal Bonding Resin), Group 4 (37% H3PO4 + Enhance LC).

Results: The Kruskal-Wallis test showed significant differences (P = .00) in shear bond strength. The Mann- Whitney test for 2 independent samples established the differences between the system of greater bond strength with respect to the 3 systems that showed lower average values of bond strength: (P =.001),. (P = .001), and (P = .002)

Conclusion: It was concluded that adhesion promoters and deproteinizing agents can be used to enhance the shear bond strength of orthodontic brackets. Among all the groups Ortho Solo showed the highest bond strength when used with TransbondTM XT.