Clinical trials: Tooth Crowding
Crowding, Tooth, Gingival Diseases
Gingival Phenotype and Dental Crowding in Pediatric Patients
The periodontal phenotype influences treatment outcomes across dental specialties, as tissues of different thickness respond differently to chemical, bacterial, and mechanical insults.
- Trial name
- BIOTIPO_PEDO (NCT07205172)
- Testing
- Orthodontic and periodontal analysis
- Where
- Italy
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Acute Illness
Clinical Decision Unit (CDU) - Evaluation of a Novel Approach to Address Emergency Department Overcrowding
This randomized controlled trial will introduce a Clinical Decision Unit (CDU) into the University of Alberta Hospital Emergency Department(ED)and assess the influence on ED length of stay, patients who leave without being seen…
- Trial name
- NCT00497393
- Testing
- Clinical Decision Unit
- Where
- Canada
- Volunteers
- 6,217 people
- Sponsor
- University of Alberta
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
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
Emergencies
Forecasting ED Overcrowding With Statistical Methods: A Prospective Validation Study
The aim of this study is to prospectively validate statistical forecasting tools that have been widely used retrospectively in forecasting ED overcrowding
- Trial name
- NCT05174481
- Testing
- Early warning system for emergency department overcrowding
- Volunteers
- 160,000 people
- Sponsor
- Tampere University Hospital
Moderate and Severe Crowding in Lower Dental Arch
Evaluation of Effects of Bracket's Slot System on the Quantity and Quality of Teeth Movements During Orthodontic Leveling and Alignment Stage
Evaluation of effect of bracket slot system on the quality and quantity of tooth movement during leveling and alignment stage
- Trial name
- NCT05537506
- Testing
- Bracket slot 0.018, Bracket slot 0.022
- Where
- Egypt
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Al-Azhar University
Crowding, Tooth, Tipped Tooth or Teeth
Efficacy and Effectiveness of Two Types of Aligners Based on Stratification by Type of Movement
The purpose of this study is to evaluate the biomechanical behaviour of direct-printed and thermoformed aligners in different tooth movements, creating a biomechanical planning protocol based on a stratification of tooth…
- Conditions
- Crowding, Tooth, Tipped Tooth or Teeth, Rotation of Tooth, Malocclusion, Angle's Class
- Trial name
- NCT06516185
- Testing
- direct-printed aligner, thermoformed aligner
- Where
- Spain
- Volunteers
- 114 people
- Sponsor
- Universidad Complutense de Madrid
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
Dental Crowding, Malocclusion, Angle Class I
Treatment Outcome of Elastomeric and Nickel-Titanium Separators in Tooth Separation
Patients seeking fixed orthodontic treatment that requires band placement will be enrolled in this study. This trial aims to compare the efficiency of rectangular cross-section nickel-titanium separators with elastomeric…
- Trial name
- NCT07591454
- Testing
- Elastomeric separators, Nickel-Titanium separators
- Volunteers
- 30 people
- Sponsor
- 3D-Aligners
Occlusion
Effects of Clear Aligners Versus Fixed Appliances on Occlusion After Treatment of Mild Anterior Crowding
The aim of this study is to evaluate effects of clear aligners versus fixed appliances on occlusion after treatment of mild anterior crowding a T-scan study.
- Trial name
- NCT05737290
- Testing
- Clear aligners, Fixed appliances
- Where
- Egypt
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Al-Azhar 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
Emergency Department, Crowding
A New Crowding Indicator in the Emergency Department
Fenice has proposed a new indicator to measure the level of crowding in the ER. The aim of this study is to evaluate, in a national multicenter context, the degree of agreement between the Fenice indicator and the perception of…
- Trial name
- NCT07111624
- Where
- 52 sites in Italy
- Volunteers
- 828 people
- Sponsor
- Mario Negri Institute for Pharmacological Research
Dental Crowding, Smile Arc Correction
A Study to Evaluate the Relationship Between Two Bracket System and Their Contribution to Initial Alignment of Maxillary Anteriors - De Crowding, Smile Arc Protection.
The goal of this clinical trial is to compare the two orthodontic bracket systems namely MBT and the Pitts21 for maxillary anterior decrowding, initial alignment as well as the smile arc correction in 6 month period.
- Conditions
- Dental Crowding, Smile Arc Correction, Maxillary Crowded Teeth
- Trial name
- NCT07712055
- Testing
- Pitts 21 bracket system, MBT bracket system
- Where
- India
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Srinivas College of Dental Sciences
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
Crowding of Anterior Maxillary Teeth
Evaluation of Leveling and Alignment of Maxillary Anterior Teeth Assisted With MOPs :A Comparative Clinical Study
The aim of the study will be directed to evaluate the effect of micro-osteoperforation on orthodontic tooth movement during leveling and alignment of the maxillary anterior teeth.
- Trial name
- NCT05605652
- Testing
- microosteoperforations
- Where
- Egypt
- Volunteers
- 28 people, healthy volunteers welcome
- Sponsor
- Al-Azhar University
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
Crowding of Anterior Mandibular Teeth
Evaluation of the Effectiveness of Piezocision and Micro-osteoperforation in Alleviating Mandibular Anterior Crowding
In recent times, many patients want their treatment duration to be reduced, because lengthy orthodontic treatment duration is associated with negative sequelae such as discomfort, pain, white spot lesions, and decreased patient's…
- Trial name
- NCT04940351
- Testing
- GROUP - A: PIEZOCISION GROUP, GROUP- B: MICRO-OSTEOPERFORATION GROUP
- Where
- India
- Volunteers
- 36 people, healthy volunteers welcome
- Sponsor
- Postgraduate Institute of Dental Sciences Rohtak
Malocclusions, Narrow Maxilla
Hyrax Vs. Invisalign Palatal Expander Clinical Study
The purpose of this study is to compare expansion result and the overall experience between the Invisalign Palatal Expander and the Hyrax expander.
- Conditions
- Malocclusions, Narrow Maxilla, Narrow Maxillary Arch, Crowding
- Trial name
- NCT06662279
- Testing
- Removable Rapid Palatal Expander, Banded Palatal Expander
- Where
- 4 sites in United States
- Volunteers
- 36 people
- Sponsor
- Align Technology, Inc.
Angle Class I Maloclussion, Dental Crowding
Orthodontic Treatment Outcomes of Self Ligating System Compared to Clear Aligner System
This study is a multi-center, prospective, parallel-group randomized controlled trial designed to compare the orthodontic treatment outcomes of a passive self-ligating bracket system (Damon Ultima) versus a clear aligner system.
- Trial name
- NCT07638397
- Testing
- self ligating bracket, Clear aligner
- Where
- Iraq
- Volunteers
- 42 people
- Sponsor
- University of Baghdad
Crowding
Treatment of Crowding Without Extraction Using Self Ligating Brackets
This experimental study will evaluate the effect of active and passive self-ligating brackets in treatment of crowding, compared with the control group of conventional brackets in class I malocclusion without extraction.
- Trial name
- NCT02996292
- Testing
- Traditional brackets, Active self-ligating brackets, Passive self-ligating brackets
- Where
- Syria
- Volunteers
- 60 people
- Sponsor
- Damascus University