3D‐printed zirconia orthodontic brackets: Effect of printing method on dimensional accuracy

Objectives This study investigated the effect of additive manufacturing (AM) methods on the slot height dimensions and accuracy of 3D‐printed orthodontic brackets. Methods A 3D model of a standard Mclaughlin Bennett Trevisi bracket was used as a reference to print the ceramic bracket in a 90° orientation using two representative AM methods: digital light processing (DLP) and material jetting (MJ). The dimensional accuracy and slot heights were determined using a scanning electron microscope and an optical scanner. Also, all specimens were analysed using the Geomagic Control X 3D inspection software. The root mean square (RMS) values were used for trueness and precision assessment. Statistical analyses were performed using an independent sample t‐test. Results Slot height dimensions, trueness RMS, and precision RMS were statistically affected by different AM methods (p