| Not Yet Recruiting | Comparison of Three Orthodontic Separators for Pain, Plaque, and Tooth Separation NCT07532044 | Islamabad Medical and Dental College | N/A |
| Not Yet Recruiting | Effect of Individually Trained Oral Prophylaxis (iTOP) on Gingival Health in Orthodontic Patients NCT07468773 | Gulf Medical University | N/A |
| Not Yet Recruiting | Salivary Flow, pH, and Buffering Capacity in Fixed and Clear Aligner Orthodontic Treatment NCT07397871 | Riyadh Elm University | N/A |
| Recruiting | A Split-Mouth Clinical Trial Evaluating the Bond Failure Rate of a New Etch-Free Orthodontic Adhesive NCT07091422 | University of Maryland, Baltimore | N/A |
| Completed | Binaural Beat Music, Stress, and Orthodontic Anxiety NCT07526922 | Kırıkkale University | N/A |
| Recruiting | Exploration of the Utility of Dental-dedicated MRI for Dentistry NCT06948162 | Donald Nixdorf | — |
| Recruiting | Effectiveness of Auxiliary Segmental Lingual Appliances in Leveling the Curve of Wilson at Second Molars NCT06858670 | Hanoi Medical University | N/A |
| Completed | Comparative Effectiveness of Remineralization Agents on Attachment-Associated Demineralization in Clear Aligne NCT07229105 | Bezmialem Vakif University | N/A |
| Completed | The Effects of Different Tooth Brushing Explanations in Fixed Orthodontic Treatment NCT06436664 | Yuzuncu Yil University | N/A |
| Recruiting | Comparison of Periodontal Health, Bonding Time and Failure Between Direct and Indirect Fixed Retainer Placemen NCT07107100 | Aga Khan University Hospital, Pakistan | N/A |
| Completed | Intra-oral Evaluation of Force Decay of Pigmented and Transparent Elastomeric Power Chains: NCT07300371 | Sana'a University | N/A |
| Recruiting | Gingival Recessions in Orthodontically Treated and Untreated Adult Patients NCT07445555 | Universitaire Ziekenhuizen KU Leuven | — |
| Completed | Impact of Photobiomodulation on Pain During Orthodontic Treatment. NCT05361616 | PBM Healing International Limited | N/A |
| Unknown | Periodontal and Orthodontic Outcomes of Straight vs. Looped Fixed Retainers NCT05644119 | King Abdulaziz University | N/A |
| Completed | Comparison of One-Step and Two-Step Light Curing of Bonding Agents and Composite in Orthodontics NCT07491796 | Shaheed Zulfiqar Ali Bhutto Medical University | N/A |
| Recruiting | Impact of Increased Body Mass Index on Adolescent Fixed Orthodontic Treatment. A Prospective Longitudinal Stud NCT07217756 | University of Rochester | — |
| Completed | Evaluation of the Effects of Obesity on Orthodontic Tooth Movement NCT05988723 | Aydin Adnan Menderes University | — |
| Unknown | Association Between Type of Ligating Brackets and Oral Health-related Quality of Life in Orthodontic Patients NCT04773210 | Fundación Universitaria CIEO | — |
| Unknown | Appointment Intervals and Orthodontic Tooth Movement NCT04050657 | Guy's and St Thomas' NHS Foundation Trust | N/A |
| Completed | A Comparative Assessment of Post Extraction Pain in Orthodontic Patients to Evaluate the Effects of Early Enga NCT06582836 | Universiti Sains Malaysia | N/A |
| Completed | Gingival Thickness of Impacted Maxillary Canines NCT04860388 | Yuzuncu Yil University | N/A |
| Completed | Curve of Spee: Speed of Leveling Using Different Orthodontic Archwires NCT04549948 | Jordan University of Science and Technology | N/A |
| Completed | Genius Toothbrushes on Periodontal Status of Orthodontic Patients NCT04235010 | Pamukkale University | N/A |
| Terminated | Evaluation of the Effects of Osteoperforation and Piezocorticision on Canine Retraction NCT03308851 | Université de Montréal | N/A |
| Completed | Vertical Gingival Display Changes Associated With Upper Premolars Extraction NCT04375540 | Jordan University of Science and Technology | N/A |
| Completed | Assessment of the Efficacy of the Aerodentis System NCT03421886 | University of Alabama at Birmingham | N/A |
| Completed | MI Varnish for the Prevention of White Spot Lesions NCT03446690 | University of Alabama at Birmingham | Phase 4 |
| Completed | Effect of Laser Application in Pain Management Following the Use of Orthodontic Elastomeric Separators NCT02209818 | Damascus University | N/A |
| Completed | Flash-free Brackets and Dental Plaque NCT03187483 | Ege University | N/A |
| Completed | A Trial of Tooth Mousse to Remineralise Post-orthodontic Treatment White Spot Lesions NCT01344473 | University of Dundee | N/A |
| Completed | Comparison of Three Toothpastes for the Prevention and Reduction of White Spot Lesions NCT03440996 | University of Alabama at Birmingham | N/A |
| Completed | Effectiveness of Insignia ™ Versus Standard Orthodontic Treatment With Damon Q Brackets NCT01268852 | Radboud University Medical Center | N/A |
| Completed | A Clinical Trial of Three Fixed Orthodontic Appliances NCT01320657 | Barts & The London NHS Trust | N/A |