Effects of Three Novel Bracket Luting Agents Containing Zirconia Primer on Shear Bond Strength of Metal Orthodontic Brackets Attached to Monolithic Zirconia Crowns: A Preliminary In Vitro Study

Figure 1

A schematic view of the shape of the bracket base. The surface area of the rectangle is 20.13 mm² according to the length (6.60 mm) and the width (3.05 mm) of the rectangle specified in the manufacturer’s catalog. The area of the bracket base was calculated as follows: the percentage of the rectangle area occupied by the bracket base was determined by counting the pixels within the rectangle (both within the bracket base and outside it). After the application of that percentage, the surface area of the bracket base was calculated as 17.854 mm².