Clinical Research Directory

Evaluation of Three-Dimensional Printed Orthodontic Molar Distalizer

A randomized clinical trial to evaluate a newly designed 3D printed miniscrew-supported molar distalization device in comparison to the conventional miniscrew-supported distal jet appliance in correction of Class II malocclusion and upper arch crowding.

Efficacy of Orthodontic Tooth Movement Using Beveled and Conventional Attachments in Aligners

The objective of this study is to evaluate the efficacy of tooth movement using beveled attachments and conventional attachments. The sample will be consecutively selected, comprising participants seeking orthodontic treatment in a private dental office within the recruitment period (from ethics committee approval to July 2027). Participants will be selected and randomized using a split-mouth study design. Groups will be divided into rectangular and beveled attachments, each further subdivided into subgroups for horizontal movements (Group H), vertical movements (Group V), and rotations (Group R), with 20 teeth/attachments per group, totaling a sample of 120 teeth/attachments. Digital study models will be obtained before the start of treatment and immediately after its completion. Additionally, clinical intraoral and extraoral photographs will be taken (pre- and post-treatment). Measurements will be collected from the initial and final digital models to determine the magnitude and direction of movements resulting from treatment. Descriptive statistics will be calculated for each type of dental movement evaluated. Paired tests will be conducted due to the split-mouth design. Correlation tests will be applied if necessary.