Clinical trials: Angle Class II
Malocclusion, Angle Class II
Predictors Associated With Seeking Orthodontic Treatment, Compliance and Treatment Success
Aim: to search for reasons for seeking orthodontic treatment, compliance during orthodontic treatment, drop-out from orthodontic treatment and success of orthodontic treatment.
- Trial name
- PONCOS (NCT03455634)
- Testing
- Twin Block, Sander bite jumping appliance
- Where
- Croatia
- Volunteers
- 110 people
- Sponsor
- Visnja Katic
Malocclusion, Angle Class II
Effects of Power Arm Application in Maxillary Canine Distalization
The aim of this study is to investigate the effects of a canine distalization force applied between power arms placed on the maxillary canine and first molar, in comparison with the classical method without power arms.
- Conditions
- Malocclusion, Angle Class II, Tooth Movement Techniques, Orthodontic Anchorage Procedures
- Trial name
- NCT07866976
- Testing
- Canine and molar power arms, Conventional canine retraction
- Where
- Turkey (Türkiye)
- Volunteers
- 16 people
- Sponsor
- Atlas University
Malocclusion, Angle Class II
Photobiomodulation of Orthodontic Mini-implants by a 635nm Diode Laser
The study aimed to estimate clinically an influence of 635nm diode laser on the primary and secondary stability of orthodontic mini-implants placed in a maxilla, to assess mini-implants failure rate (mini-implant loss) and to…
- Trial name
- NCT04170127
- Testing
- Irradiation of implants with 635nm laser
- Where
- Poland
- Volunteers
- 15 people, healthy volunteers welcome
- Sponsor
- Wroclaw Medical University
CLASS II DIVISION 1 MALOCCLUSION
Root Shortening With Three Methods of Upper Front Teeth Retraction
External apical root resorption is a possible side effect of fixed orthodontic treatment, particularly in the upper front teeth.
- Trial name
- NCT07744685
- Testing
- Bidimensional Bracket System, Hybrid Dual-Section Archwire, Conventional Sliding Mechanics
- Where
- Syria
- Volunteers
- 60 people
- Sponsor
- Damascus University
Malocclusion, Angle Class II, Division 1
Clinical Evaluation of Bio-creative Therapy for En Masse Retraction of the Maxillary Anterior Teeth
The purpose of this study is to compare the effectiveness and efficiency of labial versus lingual biocreative therapy in achieving en masse retraction of the maxillary anterior teeth in subjects with class II malocclusion…
- Trial name
- NCT03239275
- Testing
- Biocreative therapy
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Ain Shams University
Class II Division 2 Malocclusion
Changes in the Sagittal Pharyngeal Airway Dimension Following Leveling and Alignement in Class II Division 2 Patients
Aim of the study: is to compare the changes in the sagittal pharyngeal airway dimension (SPAD) and mandibular position before and after the levelling and alignment stage of orthodontic treatment in Class II division 2 patients.
- Trial name
- NCT06602518
- Testing
- Orthodontic Treatment
- Where
- Egypt
- Volunteers
- 27 people
- Sponsor
- Nourhan M.Aly
Class II Division 1 Malocclusion
The Effect of Autologous Platelet Concentrations on Orthodontic Treatment Time
60 patients needed therapeutic extraction of the maxillary first premolars with subsequent retraction of the maxillary canines were divided to randomly three groups: (1) PRP group: Received PRP injections, (2) I-PRF group…
- Trial name
- NCT05335824
- Testing
- The platelet-rich plasma (PRP), The injectable platelet-rich fibrin (I-PRF) group, The control group
- Where
- Syria
- Volunteers
- 60 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
Malocclusion, Angle Class II, Tooth Movement Techniques
Palatal Guide Wire for Canine Control During Miniscrew-Supported Distalization
When crowded or protruded teeth are treated by removing an upper premolar on each side, the canine (eye tooth) is first moved backward into the space.
- Trial name
- PGWCanine (NCT07845227)
- Testing
- Palatal guide wire, Miniscrew-supported canine distalization
- Where
- Turkey (Türkiye)
- Volunteers
- 16 people
- Sponsor
- Atlas University
Malocclusion, Angle Class II, Division 1
Comparison Between Two Methods in the Acceleration of the Retraction of Upper Canines
Patients at the Orthodontic Department of University of Damascus Dental School will be examined and subjects who meet the inclusion criteria will be included.
- Trial name
- NCT03659188
- Testing
- Cortico-alveolar perforations, Traditional Corticotomy
- Where
- Syria
- Volunteers
- 51 people
- Sponsor
- Damascus University
Angle Class II
Effects of Herbst Appliance Therapy to Improve Airway Dimension
Herbst appliance is one of the most popular fixed functional appliances to treat orthodontic patients with small lower jaws. Since small lower jaws are reported to be one of the main reasons to induce sleep disordered…
- Trial name
- NCT02448017
- Testing
- The Herbst appliance, Twin block appliance
- Where
- China
- Volunteers
- 28 people
- Sponsor
- The University of Hong Kong
Class II Malocclusion
The Effect of Low-level Laser Therapy on Functional Treatment of Skeletal Class II Patients
this is a controlled clinical trial with 2 groups of patients of class II skeletal discrepancy due to mandibular retrusion one group is treated with twin block functional appliance and the other with twin block combined with low…
- Trial name
- NCT06024382
- Testing
- twin block, twin block combined with low level laser
- Where
- Egypt
- Volunteers
- 24 people
- Sponsor
- Mansoura University
Class II Malocclusion, Mandibular Retrognathism
Comparison Of The Effects Of Clear Aligners And Twinblock Appliances In Functional Treatment Of Class II Malocclusion
This prospective clinical study aimed to compare the skeletal and dentofacial effects of Twin Block (TWB) and clear aligners with mandibular advancement, and to evaluate mandibular trabecular bone changes through fractal analysis…
- Trial name
- NCT07454694
- Testing
- Invisalign Clear Aligners, Twinblock Functional Appliance
- Where
- Turkey (Türkiye)
- Volunteers
- 34 people
- Sponsor
- Bezmialem Vakif University
Distalization, Class II Malocclusion
Comparison of Distalization of Maxillary First and Second Molars Between a Miniscrew Implant Supported Device and Clear Aligners.
The goal of this randomized clinical trial is to compare distalization of maxillary first and second molars achieved with a device supported with mini screw implants in the palate (Advanced Molar Distalization Appliance, AMDA®)…
- Conditions
- Distalization, Class II Malocclusion, Aligner Therapy, Distalization by Miniscrews
- Trial name
- NCT07040176
- Testing
- Upper molar distalization
- Where
- Greece
- Volunteers
- 40 people
- Sponsor
- Aristotle University Of Thessaloniki
Class II Div 1 Malocclusion
Root Resorption in Class II Div 1 Malocclusion in Upper 1st Premolar Extraction vs Distalization
Rationale: Class II Division 1 malocclusion is characterized by upper anterior teeth protrusion resulting in upper lip protrusion and convex facial profile, which are considered esthetically unfavorable.
- Trial name
- NCT05639725
- Testing
- maxillary Ist premolar extraction, SURGICAL
- Where
- India
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Postgraduate Institute of Dental Sciences Rohtak
Class II Division 1 Malocclusion, Mandibular Retrognathism
Dentoskeletal Changes Produced by Growth Modification Appliances in Treatment of Skeletal Class II Malocclusion
To compare dentoskeletal changes in patients with skeletal class II malocclusion induced due to treatment with orthodontic appliances; removable twin block appliance and fixed AdvanSync2 appliance in two different age group…
- Trial name
- NCT04619446
- Testing
- Removable Twin Block, Fixed Functional , AdvanSync Appliance
- Where
- Pakistan
- Volunteers
- 30 people
- Sponsor
- Dr. Fareena Ghaffar
Malocclusion, Angle Class II
Efficacy of Minimally Invasive Surgical Technique in Accelerating Orthodontic Treatment
Thirty six patients needs therapeutic extraction of the maxillary first premolars with subsequent retraction of the maxillary canines will be divided randomly into two groups : piezocision group and the ER:yttrium aluminum garnet…
- Trial name
- NCT02606331
- Testing
- Piezosurgery, ER:YAG laser
- Where
- Syria
- Volunteers
- 36 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
Evaluation of Upper Anterior Teeth Retraction Rate Assisted by Two Corticotomy Techniques
This study aims to assess the dental changes, periodontal health and the pulp vitality in mini-screw supported en-masse retraction associated with traditional or flapless corticotomy techniques.
- Trial name
- NCT04847492
- Testing
- Traditional corticotomy, Flapless corticotomy
- Where
- Syria
- Volunteers
- 40 people
- Sponsor
- Damascus University
Orthodontic Appliance Design, Retrognathism
Effect of the Innovated Seifi's Functional Appliance on Skeletal and Dentoalveolar Changes of Class II/ 1, Deep Bite
For improving the appearance of protruded upper front teeth when lower front teeth may touch palatal mucosa or have proximity to that; the innovated Seifi's Functional Appliance may be used.
- Conditions
- Orthodontic Appliance Design, Retrognathism, Malocclusion, Angle Class II, Deepbite
- Trial name
- Seifi-Fx (NCT00688233)
- Testing
- Seifi's Functional
- Where
- Iran
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Shahid Beheshti University of Medical Sciences