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Browse 47,334 clinical trials for rheumatoid arthritis. Find studies that match your criteria and connect with research centers.
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NCT06685614
Accurate bracket positioning is crucial for effective fixed orthodontic treatment and a core component of orthodontic specialist training. Clinically, two main bonding techniques exist: direct and indirect. Due to limited high-quality trials, there is no conclusive evidence favoring direct or traditional indirect bonding for accuracy. Advances in digital dentistry have further optimized indirect bonding; 3D software allows orthodontists to position virtual brackets for digital tooth alignment, and CAD/CAM technology enables the production of digitally assisted transfer trays. This project will conduct a prospective randomized controlled trial to compare the effectiveness of different bonding methods including traditional direct bonding, traditional indirect bonding, indirect bonding using 3D-printed transfer tray, and indirect bonding using vacuum-formed transfer tray made with 3D-printed models. Outcomes will include bracket placement accuracy, chairside time, bonding failure rate, treatment adjustments, and cast-radiograph evaluation. Despite current costs of CAD/CAM in orthodontics, this study aims to train orthodontic residents, optimize patient care, and foster collaboration across orthodontic specialists and industry. The alternative hypotheses are: (1) Significant differences exist in bracket positioning accuracy across bonding techniques; (2) Bonding techniques vary significantly in chairside time, bonding failure rates, incidence of bracket repositioning, and additional tooth adjustments.
NCT02409901
This randomized controlled trial (RCT) will examine the effect of a novel 12 month personalized exercise rehabilitation program compared to standard care following kidney transplantation. Return to work or find work rates, markers of subclinical atherosclerosis, functional capacity, body composition, quality of life, kidney function, and adherence to exercise will be measured. The investigators' primary hypothesis is that a 12 month exercise rehabilitation program will increase the return to work or find work rate in kidney transplant recipients. The investigators additionally hypothesize that a 12 month exercise rehabilitation program will prevent a decline in subclinical atherosclerosis, increase functional capacity, and increase lean muscle mass.