Clinical trials: Tooth Crowding
Amblyopia
New Visual Acuity and Crowding Tests for Better Detection of Amblyopia
Amblyopia, or 'lazy eye', is the reduction in vision usually in one eye, due to abnormal visual development without organic cause.
- Trial name
- NCT03505606
- Testing
- Visual acuity tests
- Where
- United Kingdom
- Volunteers
- 76 people, healthy volunteers welcome
- Sponsor
- Anglia Ruskin University
Tooth Crowding
Effect of Corticotomy on the Orthodontic Tooth Movement
Orthodontic therapy allows for the treatment of dental malpositions in order to produce an adequate relationship between teeth during occlusion. Conventional orthodontic therapy applies slight forces and moves teeth slowly.
- Trial name
- NCT01630473
- Testing
- Corticotomy, Conventional orthodontics
- Where
- Colombia
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Universidad de Antioquia
Crowding of Anterior Mandibular Teeth
Mechanical Properties and Clinical Efficacy of Two Nickel-Titanium (NiTi) Archwires
Objective: to compare the changes of the mechanical properties measured by tensile test and three point bending test of two NiTi archwires (heat-activated and superelastic); when exposed to the oral conditions during the first…
- Trial name
- (NiTi) (NCT03256279)
- Testing
- .014" NiTi heat-activated archwire, .014" NiTi Superelastic archwire
- Where
- Colombia
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Fundación Universitaria CIEO
Mandibular Anterior Crowding, Piezocision
Efficiency of Piezotome-Corticision Assisted Orthodontics
The aim of this study is to evaluate the hypothesis that a piezotome-corticision procedure will have a transient acceleratory effect on the rate of tooth alignment and the overall treatment time.
- Conditions
- Mandibular Anterior Crowding, Piezocision, Pain Perception
- Trial name
- NCT02026258
- Testing
- Piezotome-Corticision, Orthodontics
- Where
- United States
- Volunteers
- 41 people, healthy volunteers welcome
- Sponsor
- UConn Health
Crowding of Anterior Maxillary Teeth
Clear Aligner Treatment With and Without Low Level Laser Therapy for Upper Incisor Crowding
The goal of this clinical trial is to assess the effect of Low Level Laser Therapy (LLLT) on Upper Incisor Crowding using Clear Aligner Treatment (CAT).
- Trial name
- NCT06493721
- Testing
- Clear Aligner Treatment, Low level laser
- Where
- Egypt
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Faculty of Dental Medicine for Girls
Tooth Crowding, Malocclusion
Predictability of Orthodontic Tooth Movement With Invisalign Aligners
Together with the increased adult patient demand for orthodontic treatment and the push toward increasingly personalized treatment, technology developments have resulted in a growing worldwide demand for clear aligners, to the…
- Conditions
- Tooth Crowding, Malocclusion, Malocclusion, Angle Class II, Malocclusion, Class I/II
- Trial name
- NCT05356780
- Testing
- Aligner
- Where
- Italy
- Volunteers
- 98 people, healthy volunteers welcome
- Sponsor
- University of Turin, Italy
Congenital Muscular Torticollis
Birth Complications and Intrauterine Constraints in the Etiology of Congenital Muscular Torticollis: A Nationwide Registry Study
This retrospective register-based cohort study investigates the association between birth complications, intrauterine crowding, and the development of congenital muscular torticollis (CMT).
- Trial name
- NCT06901414
- Where
- Norway
- Volunteers
- 7,105 people, healthy volunteers welcome
- Sponsor
- Vestre Viken Hospital Trust
Class II Division 1 Malocclusion, Class III Malocclusion
Efficiency of Canine Retraction Using Different Reactivation Intervals
Canine retraction after 1st premolar extracion into the extraction space is a routine treatment in orthodontics. Orthodontic patients requiring first premolar extraction, canine retraction and maximum anchorage were recruited for…
- Conditions
- Class II Division 1 Malocclusion, Class III Malocclusion, Bimaxillary Protrusion, Crowding, Tooth
- Trial name
- NCT04905004
- Testing
- Canine retraction
- Where
- Egypt
- Volunteers
- 56 people, healthy volunteers welcome
- Sponsor
- Future University in Egypt
Malaligned Teeth, Crowding of Teeth
Effect of Different Adhesive Systems on White Spot Lesions During Fixed Orthodontic Treatment
The primary goal of this study is to compare the number of white spot lesions during fixed appliance therapy between self-etch and one-step bonding systems.
- Trial name
- NCT07753512
- Testing
- Self-etch adhesive, One-Step Adhesive, Conventional Bonding Technique
- Where
- Pakistan
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Foundation University Islamabad
Pathological Resorption of External Root
3D Evaluation of Clear Aligners Versus Fixed Orthodontic Treatment of Lower Anterior Crowding
Evaluate and compare clear aligners versus fixed orthodontic treatment of lower anterior crowding with the use of cone-beam computed tomography within maximum 6 months or until correction of lower anterior crowding whichever is…
- Trial name
- NCT06510569
- Testing
- U lab aligners, oramco bracket
- Where
- 2 sites in Egypt
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Haidy Fekry
Low Level Laser Therapy, Pain
Effect of the Diode Laser (940nm) on Orthodontics
To evaluate the effect of the low power density 940nm diode laser in the total relief of dental crowding during the alignment phase and the perception of pain in patients who initiate orthodontic treatment.
- Conditions
- Low Level Laser Therapy, Pain, Crowding, Tooth
- Trial name
- NCT05469451
- Testing
- Low level laser therapy
- Where
- Colombia
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Fundación Universitaria CIEO
Gingival Health, Crowding of Anterior Mandibular Teeth
To Compare the Effects of Lip Bumper Appliance in Rate of Lower Incisor Alignment After First Premolar Extractions
The goal of this clinical trial is to check the effects of lip bumper appliance contribution to driftodontics after designated tooth extractions that are already part of orthodontic treatment plan.
- Trial name
- NCT06929754
- Testing
- Lip bumper
- Where
- Pakistan
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Bahria University
Skeletal and Dental CL I Malocclusion Moderate Crowding
Clinical Effectiveness of Damon Ultima Vs Conventional Brackets Trial)
Compare the clinical performance, root resorption and pain perception between passive self-ligating Damon Ultema vs conventional brackets.
- Trial name
- NCT05978817
- Testing
- Damon Ultima bracket
- Where
- Iraq
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- University of Baghdad
Dental Crowding, Dental Occlusion, Traumatic
Exploration of the Utility of Dental-dedicated MRI for Dentistry
This description observational research is comparative in design, that is comparing existing standard clinical dental images, not obtained in this study, to test (i.e., ddMRI) images.
- Conditions
- Dental Crowding, Dental Occlusion, Traumatic, Endodontic Disease, Orthodontic Treatment
- Trial name
- NCT06948162
- Testing
- dental-dedicated MRI (ddMRI)
- Where
- United States
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- University of Minnesota
Crowding of Anterior Mandibular Teeth
Comparing the Alignment Efficiency of Three Types of Nickel-titanium Archwires
To compare the alignment efficiency of conventional NiTi arch wire to Thermal and Super elastic NiTi arch wires.
- Trial name
- NCT05676840
- Testing
- orthodontic treatment with fixed appliances
- Where
- Pakistan
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Ziauddin University
Malocclusion, Long Face Syndrome
Effect of Extraction Vs Non-extraction Orthodontic Treatment on Vertical Facial Dimension
The aim of the current clinical trial was to evaluate the effects of premolar extractions compared with non-extraction orthodontic treatment on the skeletal vertical dimension of the face.
- Conditions
- Malocclusion, Long Face Syndrome, Crowding, Tooth
- Trial name
- NCT04151875
- Testing
- Extraction orthodontic treatment, Non-extraction orthodontic treatment
- Where
- Egypt
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Cairo University
Tooth Crowding
Effect of Force Magnitude on Canine Retraction and Gingival Crevicular Fluid Proteome
This study aims to examine the effect of force levels in orthodontic treatment during canine retraction. Force levels refer to the pressure applied by the orthodontic devices to move teeth.
- Trial name
- NCT06668194
- Testing
- Light Force (150g Niti Coil), Heavy Force (400 g Niti coil)
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- UConn Health
Tooth Crowding, Tooth; Lesion, White Spot Lesions
Comparison Of Different Orthodontic Aligner Systems Applied On Single Stage And Three Stage
Applying to the Orthodontics Department of the Faculty of Dentistry of Erciyes University for orthodontic treatment, a periodontally healthy 16-26 year-old periodontally healthy, non-congenital or congenital anomaly in the…
- Trial name
- NCT04678596
- Testing
- EonAligner, Clearfix
- Where
- Turkey (Türkiye)
- Volunteers
- 25 people, healthy volunteers welcome
- Sponsor
- TC Erciyes University
Emergencies
The Effect of an Physician-Nurse Supplementary Triage Assistance Team on Emergency Department Patient Wait Times
The primary objective of this study is to investigate whether the introduction of a physician-nurse supplementary triage assessment team (MDRN STAT) is effective in improving time-based performance indicators for wait times.
- Trial name
- MDRNSTAT (NCT00991471)
- Testing
- Interaction with MDRN STAT, No MDRNSTAT
- Where
- Canada
- Volunteers
- 6,300 people, healthy volunteers welcome
- Sponsor
- Sunnybrook Health Sciences Centre
Dental Malocclusion, Angle Class II
BRIUS Vs FFA Efficiency
The purpose of this study is to compare the Full Fixed Preadjusted appliances (regular braces) when to the BRIUS system.
- Conditions
- Dental Malocclusion, Angle Class II, Angle Class I, Crowding, Tooth
- Trial name
- NCT04347018
- Testing
- BRIUS
- Where
- United States
- Volunteers
- 13 people, healthy volunteers welcome
- Sponsor
- State University of New York at Buffalo