Clinical trials: Crowding
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
Crowding
Alignment Efficiency of Two Thermal Activated Orthodontic Archwire Sequences
The aim of the present study was to compare the effectiveness of two alignment sequences with thermal activated archwires with different Af temperatures applied for the correction of mandibular anterior crowding
- Trial name
- NCT02415673
- Testing
- Fixed orthodontics appliance and arch wire
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Faculty Sao Leopoldo Mandic Campinas
Rabies Vaccine Allergy
The Protection Effect of Speeda® Rabies Vaccine for Human Use
The objective of this study was to achieve the post-marketing protective effect research of Speeda® rabies vaccine for human use from Chengda Bio.
- Trial name
- NCT01827917
- Testing
- rabies vaccine
- Where
- China
- Volunteers
- 37 people, healthy volunteers welcome
- Sponsor
- Beijing Center for Disease Control and Prevention
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
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
Amblyopia
Combining Donepezil With Perceptual Learning in Normal and Amblyopic Human The Effect of Donepezil on Perceptual Learning in Adult Amblyopia
The research deals with amblyopia or lazy eye, a condition that affects about 3% of the population, and results in a variety of visual deficits.
- Trial name
- NCT03109314
- Testing
- Donepezil, Single-letter training, Uncrowd training
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Dennis Levi
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
Crowding of Anterior Mandibular Teeth
Efficiency of Using Copper-Nickel-Titanium Versus Nickel-Titanium Arch Wires on Anterior Segment Crowding Alleviation in Group of Adults With Moderate Crowding
Evaluate the efficiency of using copper nickel titanium (CuNiTi) arch wire on the initial stage of leveling and alignment regarding their rate of alignment in comparison to Conventional Nickel Titanium arch wire (NiTi) by…
- Trial name
- NCT04815200
- Testing
- Copper Nickel titanium arch wire
- Where
- Egypt
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Cairo University
Caries
Prevalence of Dental Caries in Patients With Dental Crowding
Dental crowding causes limited access for the toothbrush, and the natural cleansing effect of the teeth by the tongue and saliva is also limited.
- Trial name
- NCT06438926
- Volunteers
- 325 people, healthy volunteers welcome
- Sponsor
- Cairo University
Orthodontic Tooth Movement, Tooth Alignment
Effect of 3 Week vs 6 Week Orthodontic Appointment Intervals on Teeth Alignment
Effect of 3 week vs 6 week orthodontic appointment intervals on teeth alignment in patients with moderate to severe dental crowding: a randomized clinical trial.
- Trial name
- NCT06032702
- Testing
- tooth alignment
- Where
- Pakistan
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- Bkahtawar Amin Medical and Dental College Multan
Malaligned Teeth, Crowding
A Prospective , Split-mouth, Clinical Study of Orthodontic Titanium Miniscrews With Machined and Acid-etched Surfaces.
Primary goal of this study to check the stability of miniscrews used in orthodontic treatment in order to evaluate the success of the treatment.
- Trial name
- NCT07662434
- Testing
- miniscrews placement
- Where
- Pakistan
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Foundation University Islamabad
Dental Crowding, Alveolar Bone Loss
Bone Level Changes Using Clear Aligners Compared to Fixed Appliances in Non-Extraction Treatment of Adults
This study compares two common ways of straightening teeth in adults who have mild-to-moderate crowding of the lower front teeth and do not need any teeth removed: clear aligners and traditional fixed braces.
- Conditions
- Dental Crowding, Alveolar Bone Loss, Malocclusion
- Trial name
- NCT07716007
- Testing
- Fixed orthodontic appliance, Clear aligners
- Where
- Egypt
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Future University in Egypt
Crowding of Teeth
The Evaluation Of The Efficiency Of Micro-osteoperforation
Prolonged orthodontic treatment increases the risc of caries, periodontal problems and root resorption. Many different techniques were developed to shorten the treatment time.
- Trial name
- NCT03652454
- Testing
- micro-osteoperforation, conventional fixed appliance treatment
- Where
- Turkey (Türkiye)
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Izmir Katip Celebi University
Tooth Overcrowding
Efficiency of Piezocision-assisted Orthodontic Treatment in Adult Patients
This study was designed as a randomized controlled clinical trial to compare conventional orthodontic treatment (control group) and piezocision-assisted orthodontic treatment (PS group).
- Trial name
- NCT02590835
- Testing
- Orthodontic procedures (for both groups : Control group and Test group), Piezo-assisted orthodontics (only the Test group)
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Dr. France LAMBERT
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
Orthodontics
Effect of Laser-aided Csf on the Rate of Leveling and Alignment of Mandibular Anterior Crowding
To test the effect of laser-aided circumferential supracrestal fiberotomy on the rate of leveling and alignment
- Trial name
- NCT06380790
- Testing
- Laser-aided csf
- Where
- Egypt
- Volunteers
- 26 people, healthy volunteers welcome
- Sponsor
- Cairo University
Tooth Position Anomalies
Effects of Mini Implant Facilitated Micro-osteoperforations on the Alignment of Mandibular Anterior Crowding
The primary aim of the present study is to evaluate the the efficacy of micro-osteoperforation (MOPs) perfomed by mini-implant (MI) screw In improving alignment of mandibular anterior teeth
- Trial name
- NCT04778241
- Testing
- Micro-osteoperforation
- Where
- Iraq
- Volunteers
- 32 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, Tooth, Class I
Comparison Between the Effectiveness of Different Commercial Bracket Brands
There's a scarcity in literature concerning the comparison of the effectiveness of brackets in its torque and tip ability, the time takes for leveling and alignment comparing between different orthodontic bracket brands, and its…
- Trial name
- NCT05333094
- Testing
- Brackets
- Where
- Egypt
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Future University in Egypt
Angle Class I Malocclusion, Dental Crowding
Clinical Performance of Direct-Printed Versus Thermoformed Aligners
The goal of this study is to evaluate and compare the clinical effectiveness of in-office directly 3D-printed clear aligners versus conventional multilayered thermoformed aligners.
- Conditions
- Angle Class I Malocclusion, Dental Crowding, Tooth Spacing
- Trial name
- NCT07637227
- Testing
- Direct-Printed Aligner, Thermoformed aligner
- Where
- 3 sites in Iraq
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- University of Baghdad