Clinical trials: Angle Class II
Malocclusion, Angle Class II, Division 1
Dento-Alveolar Changes in Maxillary Incisors After En-Masse Retraction Using Two Power-Arm Heights
This study aims to evaluate the dento-alveolar changes associated with en-masse retraction of the maxillary anterior teeth using two different power-arm lengths to produce two distinct levels of force application.
- Trial name
- DA-RET (NCT07259720)
- Testing
- TAD-supported En-masse Retraction
- Where
- Egypt
- Volunteers
- 20 people
- Sponsor
- Faculty of Dental Medicine for Girls
CLASS II DIVISION 1 MALOCCLUSION
Evaluating the Efficacy of the Sliding Mechanisms on Round-section Arch Wire
Patients at the Orthodontic Department of the University of Damascus Dental School will be examined, and subjects who meet the inclusion criteria will be included.
- Trial name
- NCT07243509
- Testing
- Round-cross-section archwire, Rectangular-cross-section archwire
- Where
- Syria
- Volunteers
- 38 people
- Sponsor
- Damascus University
Bite, Orthodontics
Evaluation of a Novel Lip Bumper With Integrated Distal Shoe Appliance in Preventing Second Molar Impaction in Children With Anterior Deep Bite
The goal of this clinical trial is to evaluate the effectiveness of a novel lip bumper with an integrated distal shoe in preventing second molar impaction in children aged 8-10 years with anterior open bite during the mixed…
- Trial name
- Novel Lip Bump (NCT07015385)
- Testing
- Lip Bumper with Integrated Distal Shoe, Conventional Lip Bumper
- Volunteers
- 40 people
- Sponsor
- Dar Al Uloom University
Class II Malocclusion, Division 1, Orthodontic Appliances
Treatment of Class II Malocclusion With Excessive Overjet
Class II malocclusion with excessive overjet is one of the most common malocclusions among children and adolescents. The overall goal of the project is to analyze orthodontic treatment of Class II malocclusion with excessive…
- Conditions
- Class II Malocclusion, Division 1, Orthodontic Appliances, Quality of Life, Costs and Cost Analysis
- Trial name
- NCT04508322
- Testing
- HGA, FA
- Where
- Sweden
- Volunteers
- 96 people
- Sponsor
- Jenny Kallunki
Orthodontic Appliances, Removable, Orthodontic Appliance Complication
Microbial Adherence, Surface Roughness, Effectiveness and Impact on Patients Between Conventional and 3D Printed Twin Block Appliances
The Twin Block appliance is a removable orthodontic appliance that is used to help correct a backward positioned lower jaw in growing children.
- Conditions
- Orthodontic Appliances, Removable, Orthodontic Appliance Complication, Class II Malocclusion, Division 1
- Trial name
- NCT06944860
- Testing
- Conventional TBA, 3D TBA
- Where
- Malaysia
- Volunteers
- 32 people
- Sponsor
- University of Malaya
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 Division 1 Adolescent Patients
Three-Dimensional Evaluation of Pharyngeal Airway and Facial Dimension Changes in Skeletal Class II Patients Treated With Twin Block Versus Myobrace Appliances
This study is intended primarily to compare the effects of two Class II correction appliances, namely Twin block and Myobrace appliances, on pharyngeal airway dimensions during the treatment of class II division 1 adolescent…
- Trial name
- NCT06976749
- Testing
- myobrace appliance, Twin block
- Where
- Iraq
- Volunteers
- 50 people
- Sponsor
- University of Baghdad
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
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, IMPA Angle
Comparing the Impact of Rubber Bands on Teeth Straightening with Clear Aligners Versus Traditional Braces: a Clinical Study
Aim: To analyze the inclination of lower incisors in patients with Class II malocclusion treated with elastics and clear aligners compared to a group wearing the same elastics and fixed appliance.
- Trial name
- Class II (NCT06832475)
- Testing
- clear aligners and elastics, class 2 elastics
- Where
- Italy
- Volunteers
- 40 people
- Sponsor
- University of Rome Tor Vergata
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
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
Malocclusions, Malocclusion, Angle Class I
Microanalysis of Changes in 3D Geometry of Orthodontic Mini-implants
The orthodontic mini-implants used in the study are temporary screws inserted into the bone to provide anchorage for challenging tooth movements that could not be carried out using the patient's own teeth.
- Conditions
- Malocclusions, Malocclusion, Angle Class I, Malocclusion, Angle Class II
- Trial name
- NCT06743360
- Testing
- Insertion, Scanning
- Where
- 2 sites in Poland
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Pomeranian Medical University Szczecin
Malocclusion, Angle Class II
Effects of the Herbst Appliance With Different Anchorages and Twin-Block Appliance in Class II Malocclusion
The purpose of this study is to determine if the Herbst appliance with indirect skeletal anchorage in mini-implants is capable of preventing excessive inclination of the lower incisors at the end of the treatment when compared to…
- Trial name
- HASA (NCT02411812)
- Testing
- Herbst appliance with skeletal anchorage, Herbst appliance with dental anchorage, Twin-Block appliance
- Where
- Brazil
- Volunteers
- 60 people
- Sponsor
- Klaus Barretto-Lopes
Angle Class II
Which is Better Piezosurgery or Piezosurgery With Laser in Accelerating Orthodontic Tooth Movement
Sixty patients who need extraction-based treatment of the maxillary first premolars with subsequent retraction of the maxillary anterior teeth will be divided randomly into three groups: piezocision group, piezocision with…
- Trial name
- NCT05655169
- Testing
- Piezosurgery and GaALAs diode laser, Piezosurgery, Fixed orthodontic appliance
- Where
- Syria
- Volunteers
- 63 people
- Sponsor
- Damascus University
Malocclusion, Angle Class II
Crossbow Versus Forsus Springs in Mild to Moderate Class II Malocclusion Cases
Class II malocclusion (mismatch between the upper and lower jaw in which the lower jaw appears to be smaller from a profile point of view) are common in the general population.
- Trial name
- NCT01530516
- Testing
- Brackets plus Forsus springs, Xbow plus full brackets
- Where
- Canada
- Volunteers
- 54 people
- Sponsor
- University of Alberta
Overjet, Class II Division 1 Malocclusion
Mandibular Advancement Planning Based on Clinical Overjet
This Prospective study aims to simulate the maximum mandibular advancement in class II patients treated by Herbst MTH Appliance on the base on clinical overjet.
- Trial name
- NCT06653075
- Testing
- mandibular advancement with acrylic splint Herbst Appliance
- Where
- Italy
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- IRCCS Ospedale San Raffaele
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
CLASS II DIVISION 1 MALOCCLUSION
Comparative Effect of Clear Aligner Mandibular Advancement and Twin Block Appliances in Class II Malocclusion
The goal of this retrospective observational study is to compare the effects of Clear Aligner Mandibular Advancement (MA) and Twin Block (TB) appliances in treating Class II malocclusion, a condition where the lower jaw is…
- Trial name
- NCT06609733
- Testing
- Twin block, Clear aligner with mandibular function
- Where
- China
- Volunteers
- 47 people
- Sponsor
- Sichuan University