Clinical trials: Crowding of Teeth
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
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
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
Mild-to-Moderate Mandibular Anterior Crowding
Bracketless Orthodontic Treatment (3D-BOT) Versus Conventional Fixed Braces for Mild-to-Moderate Lower Front Tooth Crowding in Adults
This study will compare two fixed orthodontic treatments for mild-to-moderate crowding of the lower front teeth in adults. Participants will be randomly assigned to three-dimensional bracketless orthodontic treatment (3D-BOT)…
- Trial name
- 3D-BOT-RCT (NCT07897864)
- Testing
- Conventional Labial Fixed Orthodontic Appliance, 3D-BOT Using E-WIRE Archwires
- Where
- Syria
- Volunteers
- 30 people
- Sponsor
- University of Aleppo
Crowding
Can the Point-Of-Care Chemistry Test (POCT) Solve the Emergency Department (ED) Crowding?
The hypothesis of this study that the Point-Of-Care Chemistry Test (POCT) may shorten Emergency Department (ED) length of stay (LOS).
- Trial name
- POCTED (NCT01402635)
- Testing
- point-of-care chemistry test(POCT) (Piccolo)
- Where
- South Korea
- Volunteers
- 10,244 people
- Sponsor
- Seoul National University Hospital
Class II Malocclusion, Class III Malocclusion
Canine Retraction With Temporary Anchorage Devices
Various malocclusions require the extraction of the first premolars and retraction of the canines with the need for maximum anchorage.
- Conditions
- Class II Malocclusion, Class III Malocclusion, Crowding, Tooth, Bimaxillary Protrusion
- Trial name
- NCT04887974
- Testing
- canine retraction
- Where
- Egypt
- Volunteers
- 10 people
- Sponsor
- Future University in Egypt
Class I Malocclusion, Crowded Teeth
The Predictability of Directly Printed Versus Thermoformed Clear Aligners
The study is randomized controlled trial ...The null hypothesis suggests that there is no significant difference between actual and predicted dental movement in patients treated using direct printed aligners produced with Graphy™…
- Conditions
- Class I Malocclusion, Crowded Teeth, Spacing of Anterior Teeth, Rotation
- Trial name
- NCT07350343
- Testing
- Direct-printed aligner (Graphy), Thermoformed aligner
- Where
- Iraq
- Volunteers
- 36 people
- Sponsor
- University of Baghdad
Dental Research, Orthodontics
Treatment of the Mandibular Dental Crowding With and Without Corticotomy Surgery
The use of corticotomy surgery in addition to orthodontic standard treatment could accelerate the treatment. Corticotomy involves vertical interdental incisions of the gingiva and the bone with a very low thickness.
- Conditions
- Dental Research, Orthodontics, Surgery, Oral, Maxillofacial Surgery
- Trial name
- CORTICO (NCT03967002)
- Testing
- Test group with corticotomy surgery
- Where
- Switzerland
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Ardentis Cliniques Dentaires
Crowding, Tooth
Acceleration of Lower Anterior Teeth Leveling and Alignment Using Corticision
This experimental study will evaluate the effect of corticision on accelerating the leveling and alignment of lower crowded incisors compared with the control untreated group using cone beam computed tomography.
- Trial name
- NCT03310086
- Testing
- Traditional fixed appliance, Corticision
- Where
- Syria
- Volunteers
- 26 people
- Sponsor
- Damascus 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
Surgical Incision, Malocclusion
Efficacy of Piezosurgey Corticotomy (a Minimally Invasive Surgical Technique) in Accelerating Orthodontic Alignment
Applying flapless piezocision corticotomies on the alveolar bone and separating anterior mandibular teeth using a piezosurgery device (i.e.
- Trial name
- NCT02977221
- Testing
- Piezosurgery
- Where
- Syria
- Volunteers
- 36 people
- Sponsor
- Damascus University
Crowding, Tooth
Evaluation of the Patient Experience With a Surgically-assisted Acceleration Method of Orthodontic Treatment
The duration of orthodontic treatment is one of the exacerbation causes of orthodontic pain. Several methods have been suggested to reduce the duration of orthodontic treatment classified to surgical and non-surgical methods.
- Trial name
- NCT05250921
- Testing
- Corticision, Conventional fixed appliance
- Where
- Syria
- Volunteers
- 52 people
- Sponsor
- Damascus University
Crowding, Tooth
Evaluating the Influence of Showing Patients Their Predicted Teeth Alignment on Their Expectations and Satisfaction
Patients who have moderate crowding will be treated in this study. The efficacy of showing the predicted alignment of patient's teeth at the end of orthodontic treatment previously to treatment on their expectations from…
- Trial name
- NCT05010616
- Testing
- Fixed orthodontic appliances
- Where
- Syria
- Volunteers
- 25 people
- Sponsor
- Damascus University
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
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
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
Dental Crowding, Malocclusion
Clear Aligners With Two Different Change Schedules vs Traditional Braces for People With Crowded Lower Front Teeth
The goal of this clinical trial was to compare two clear aligner treatment plans with traditional braces for treating crowded lower front teeth in adults. Clear aligners were removable plastic trays.
- Trial name
- NCT07821723
- Testing
- Clear aligner, 0.25 mm per step, Clear aligner, 0.35 mm per step, Conventional fixed orthodontic appliance
- Where
- Egypt
- Volunteers
- 21 people
- Sponsor
- Ain Shams University
Malocclusion of Anterior Teeth
Evaluation of Self-ligating Brackets Plus Minor Surgery in Treating Crowded Cases of Malocclusion
Patients at the Orthodontic Department of University of Damascus Dental School will be examined and subjects who meet the inclusion criteria will be admitted then the initial diagnostic records (diagnostic gypsum samples …
- Trial name
- NCT03647241
- Testing
- Self-Ligating Brackets, Traditionally-Ligated Brackets, Corticotomy
- Where
- Syria
- Volunteers
- 60 people
- Sponsor
- Damascus University
Length of Stay, Emergency Department Crowding
Digital Anticipatory Protocols at Triage to Improve ED Flow.
This study aims to evaluate a pre-post intervention adding an early management decision at the end of the triage process to improve patient throughput.
- Conditions
- Length of Stay, Emergency Department Crowding, Emergency Department Patient, Emergency Department Triage
- Trial name
- NCT07726108
- Testing
- Digital Anticipatory Protocols at Triage
- Where
- Switzerland
- Volunteers
- 15,500 people, healthy volunteers welcome
- Sponsor
- Hôpital Fribourgeois
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