Clinical Research Directory

Maxillary Canine Retraction Using Stainless Steel and Titanium-molybdenum Alloy Wires in TAD-supported Segmental Mechanics

The goal of this randomized clinical study is to compare the effectiveness of stainless steel (SS) and titanium-molybdenum alloy (TMA) wires for maxillary canine retraction using TAD-supported segmental mechanics. The main question it aims to answer is: Which wire material, stainless steel or titanium-molybdenum alloy, provides better outcomes in maxillary canine retraction when used with TAD-supported segmental mechanics? Researchers will compare SS reverse-closing loops with TMA reverse-closing loops to evaluate differences in the rate of canine retraction and canine angulation changes during orthodontic space closure. Participants will: * Receive mini-implants/TADs on both sides of the maxillary arch. * Receive a stainless steel reverse-closing loop on one side and a TMA reverse-closing loop on the contralateral side. * Receive the same standardized force of 150 g on both sides. * Visit the clinic every 4 weeks for a total duration of 4 months. * Undergo OPG radiographs before retraction and after the 4-month study period to assess canine angulation.

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.