Clinical trials: Class II Malocclusion
Obstructive Sleep Apnea, Malocclusion
Premolar Extractions for Obstructive Sleep Apnea in Children With Overjet
This research aims to provide pediatric patients with polysomnography (a sleep study) before and after orthodontic treatment to determine if the extraction of upper premolars for treating excessive overjet results in an increase…
- Trial name
- NCT04946201
- Where
- United States
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Mohamed Bazina
Class II Malocclusion, Class II Malocclusion, Division 1
Distalization With Aligners: Anchorage Options
Background: To compare the dentoskeletal effects of Class II elastic anchorage and infrazygomatic crest (IZC) miniscrew anchorage in sequential maxillary molar distalization using clear aligners.
- Trial name
- NCT06631131
- Testing
- Distalization with clear aligners supported by Class II elastics, Distalization with clear aligners supported by miniscrew
- Where
- Turkey (Türkiye)
- Volunteers
- 22 people
- Sponsor
- Bezmialem Vakif University
Class II Division 1 Malocclusion
Patient-related Outcomes When Accelerating Upper Canine Retraction With Fixed Orthodontic Appliances
Patients will be screened in the Orthodontics Department of the Faculty of Dentistry, Damascus University, and those who meet the inclusion criteria will be included.
- Trial name
- NCT06875037
- Testing
- Electric stimulation removable appliance, Traditional orthodontic fixed appliance without accleration
- Where
- Syria
- Volunteers
- 40 people
- Sponsor
- Damascus University
Malocclusion, Angle Class II
Effect of Photobiomodulation by 808nm Diode Laser on the Stability of Orthodontic Mini-implants.
The study aimed to evaluate the influence of a 635nm diode laser on the stability of orthodontic mini-implants in vitro, as well as mini-implants failure rate (mini-implant loss) and patients pain level after the treatment.
- Trial name
- NCT04276402
- Testing
- Irradiation of implants with 808nm laser
- Where
- Poland
- Volunteers
- 22 people, healthy volunteers welcome
- Sponsor
- Wroclaw Medical University
Class II Division 1 Malocclusion
External Root Resorption and Periodontal Status During Retraction of the Upper Anterior Teeth
This RCT will include 34 patients requiring en-masse retraction of upper anterior teeth after maxillary first premolars extraction.
- Trial name
- NCT06873490
- Testing
- Electric stimulation removabel device, Traditional retraction method.
- Where
- Syria
- Volunteers
- 34 people
- Sponsor
- Damascus University
Class II Malocclusion
Photographic Analysis of Soft Tissue Facial Profile in Patients With Class II Malocclusion
The present day social setup considers facial charisma as an important physical characteristic. The facial characteristics of an individual are measured through anthropometry, photogrammetry, computer imaging and cephalometric…
- Trial name
- STFP (NCT02000557)
- Where
- Pakistan
- Volunteers
- 60 people
- Sponsor
- Academy of Interdisciplinary Dental Education and Research
Angle Class 2 Malocclusion
Clear Aligners vs Fixed Appliances for Molar Distalization Using Infrazygomatic Crest Screws
This study compares three different methods of moving upper back teeth backward (distalization) to create space for crowded or protruding teeth, all supported by small temporary screws placed in the cheekbone area (infrazygomatic…
- Trial name
- NCT07714603
- Testing
- Pitts21® fixed appliance, Invisalign® Clear Aligners, ClearCorrect Clear Aligners
- Where
- Turkey (Türkiye)
- Volunteers
- 37 people
- Sponsor
- TC Erciyes University
Dental Malocclusion
Predictability of Distalization and Derotation of the Carriere Motion Appliance.
To analyze the distalization or distal tooth displacement and derotation angle produced by Carriere Motion Appliance® (CMA) by using a repeatable and reproducible measurement digital technique.
- Trial name
- NCT05094973
- Testing
- Carriere Motion Appliance®
- Where
- Spain
- Volunteers
- 15 people
- Sponsor
- University of Salamanca
Skeletal Class II Malocclusion, Mandibular Retrognathia
Fixed Versus Conventional Twin Block Appliances for Skeletal Class II Malocclusion
This study compares two types of dental appliances a fixed Twin Block appliance and a conventional (removable) Twin Block appliance used to treat a bite problem called skeletal Class II malocclusion in growing children and…
- Trial name
- NCT07687927
- Testing
- Conventional Twin Block Appliance
- Where
- Egypt
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Al-Azhar University
Malocclusion, Angle Class II
Effects of Modified Fixed Twin Block Versus Removable Twin Block on Skeletal Class 2 Growing Patients With Mandibular Deficiency
Effects of modified fixed twin block versus removable twin block on skeletal class 2 growing patients with mandibular deficiency: A Randomized Clinical Trial
- Conditions
- Malocclusion, Angle Class II, Mandible Small
- Trial name
- NCT05993156
- Testing
- modified Fixed twinblock, removable twin block
- Where
- Egypt
- Volunteers
- 24 people
- Sponsor
- Cairo University
Angle Class II
Analysis of the Effect oh the Carriere Motion 3D
Class II subdivision malocclusions are common and complex to treat due to their asymmetry. The range of orthodontic correction devices is expanding towards systems that are more comfortable for the patient but may not necessarily…
- Trial name
- NCT06785896
- Testing
- Angle Class II unilateral, treated by carriere motion appliance
- Where
- France
- Volunteers
- 25 people
- Sponsor
- Centre Hospitalier Universitaire de Nice
Class II Division 1 Malocclusion
Cephalometric Changes Following Retraction of the Upper Anterior Teeth Stimulated by Low-intensity Electrical Current
Thirty-six patients requiring extraction of maxillary first premolars and en-masse retraction of upper anterior teeth will participate in the study.
- Trial name
- NCT06639204
- Testing
- Electrical stimulation, Orthodontic treatment without acceleration
- Where
- Syria
- Volunteers
- 36 people
- Sponsor
- Damascus University
Malocclusion, Angle Class II
The Effect of Timing on Orthodontic Treatment
The aim of this longitudinal randomized investigation is to determine the long-term effects of early headgear treatment on craniofacial structures and dental arches, compared to treatment started later, during the most active…
- Trial name
- NCT02010346
- Testing
- Early headgear treatment
- Volunteers
- 120 people
- Sponsor
- University of Oulu
Malocclusion, Angle Class II, Malocclusion, Angle Class III
Facial Aesthetic Analysis Model Based on Clinical Cohort Phenotype to Explore 45° Facial Profile.
Facial aesthetics has always been a complex and subjective concept. The overall facial harmony, along with lip protrusion, which is often a focus for orthodontists, requires evaluation from multiple perspectives.
- Trial name
- NCT06984666
- Testing
- language
- Where
- China
- Volunteers
- 80 people, healthy volunteers welcome
- Sponsor
- Linyu Xu
Class II Div 2 Incisal Relationship
Comparison Between 2 Protocols for the Treatment of Class II Division 2 Malocclusion
The aim of this prospective study was to compare between two different treatment modalities of class II division 2; to start treatment in upper arch first until adequate overjet is obtained or to start in the lower arch first…
- Trial name
- NCT03833739
- Testing
- Fixed appliance
- Where
- Jordan
- Volunteers
- 54 people, healthy volunteers welcome
- Sponsor
- Jordan University of Science and Technology
Malocclusion, Angle Class II
Study to Compare Two Functional Appliances for Class II Malocclusions
A randomised controlled clinical trial to compare the effectiveness of two functional appliances in the correction of a Class II malocclusion.
- Trial name
- NCT03773783
- Testing
- Button and Bead appliance, Twin Block appliance
- Where
- United Kingdom
- Volunteers
- 64 people, healthy volunteers welcome
- Sponsor
- University of Birmingham
Juvenile Idiopathic Arthritis, Malocclusion, Angle Class II
Mandibular Advancement Clear Aligner Treatment in Juvenile Idiopathic Arthritis Subjects
There is currently no information on how mandibular advancement therapy could influence three-dimensionally the condylar and mandibular morphology in growing patients affected by Juvenile Idiopathic Arthritis (JIA).
- Trial name
- NCT05467579
- Testing
- Device: orthodontic - mandibular advancement clear aligner
- Where
- Italy
- Volunteers
- 50 people
- Sponsor
- University of Genova
Class II Malocclusion
Comparative Effect of Conventional and 3D-printed Twin Block Appliances on Soft Tissue Changes
: To evaluate the effectiveness of functional device treatment using both 3D-printed and conventional Twin Block appliances on soft tissue changes during growth modification in Class II malocclusion.
- Trial name
- Clinic Radiogr (NCT07795138)
- Testing
- Twin Block
- Where
- Egypt
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Al-Azhar University
ClassII Division 1 Malocclusion, Mandibular Retrognathism
Effects of Orthopedic Mandibular Advancement in Class II Division 1 Malocclusion on Pharyngeal Airway
This study aims at evaluating the effects of mandibular advancement on pharyngeal airway space and nocturnal breathing in children with skeletal class II division1 malocclusion.
- Trial name
- NCT04255511
- Testing
- Twin Block, Fixed orthodontic appliance
- Where
- Egypt
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Mansoura University
Class II Division 1 Malocclusion
Measuring Rate of Anteriors Retraction With Two Different Techniques
Few studies had investigated the effectiveness of segmental retraction. As a result of that, this study was concerned about comparing retraction rate of maxillary incisors between buccal and palatal mini-implant supported…
- Trial name
- NCT05542745
- Testing
- palatal and buccal retraction
- Where
- Egypt
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Mansoura University