View clinical trials related to Malocclusion, Angle Class II.
Filter by:Patients with class II division 1 malocclusion who have increased overjet will be treated in this study. The efficacy of one-jaw and tow-jaw mechanics for mini-implants anchored total-maxillary-arch-distalization in the treatment of class II division 1 malocclusion will be assessed. The skeletal, dental and soft tissues changes resulted by these tow interventions will be studied. As well as, the pain levels, oral-health related quality of life during all stages of the treatment and the smile components will be explored and compared with the traditional treatment results of this type of malocclusion (en-mass retraction with first premolars extraction). There are three groups : 1. a group of patients in which participants will be undergo to the one-jaw mechanic for mini-implants anchored total-maxillary-arch-distalization (mini-implants in the maxillary arch). 2. a group of patients in which participants will be undergo to the tow-jaw mechanic for mini-implants anchored total-maxillary-arch-distalization (mini-implants in the mandibular arch with class II elastics). 3. a group of patients in which participants will be undergo to the en-mass retraction with first premolars extraction with mini-implants in the maxillary arch.
The aim of this clinical study is to evaluate the dentoskeletal effects of Class II division 1 treatment in growing patients with a prefabricated myofunctional appliance versus a 3D-printing myofunctional appliance.
The aim of this study is to document the changes brought about in the internal anatomic relationships of the TMJ complex,positional changes of glenoid fossa with respect to adjacent cranial structures after completion of fixed orthodontic treatment in adolescent females initially treated with removable functional appliances for skeletal class II, Angle's class II division 2 Malocclusion.
Acceleration of orthodontic tooth movement persuades tremendous rise in the interest of adolescents and aduts, as it not only shortens the treatment duration but also lessens the incidence of white spot lesions, root resorption, periodontal and other soft tissue problems. Minimal invasive techniques i.e.both piezocision and micro-osteoperforations had promising results in accelerating tooth movement. Therefore current study will provide evidence for better minimal invasive technique in terms of reducing treatment time and patient comfort.
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 patients.
Comparison of orthodontic patients treated with aligners and traditional (clear braces)
The study was directed to compare the treatment outcomes of subjects with Class II malocclusion who were treated with Herbst appliance before and after puberty.
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 overjet when the treatment is started in different ages and treated with removable and/or fixed appliance. Treatment initiated before the age of eleven is performed with a removable functional appliance, Headgear Activator (HGA). Treatment starting in early adolescence is performed with fixed orthodontic appliance (FA). The hypotheses are: - Treatment with HGA at the age of nine or eleven is effective. No spontaneous correction of the malocclusion is expected in the untreated control group. - Patient experience, treatment effect and cost-effectiveness are equivalent whether the treatment with HGA is initiated at the age of nine or eleven. - Treatment results, patient experience and treatment- and cost-effectiveness are equivalent whether treatment is initiated early with HGA or initiated in early adolescence with FA. - The treatment of Class II malocclusion with excessive overjet renders long-term treatment stability and patient satisfaction.
The treatment of skeletal Class II malocclusion can be carried out through different approaches. One of these is the using of Fixed Functional Appliances (FFA), one of main drawbacks of these appliances is the proclination of the lower anterior teeth limiting the skeletal effect that is originally addressed in those patients.To overcome these limitations, miniplates anchored Forsus FRD were introduced, it showed high success rate in achieving a more skeletal effect with retroclination of lower anterior teeth rather than their proclination. Although Herbst appliance is categorized as the best FFA with more stable skeletal and dentoalveolar effects, miniplates had never been tried as an anchorage source with Herbst appliance in skeletal Class II patients.
Ten adolescent female patients with Class 2 mandibular deficiency with a mean age of 16.5 ±1.71 years treated with type IV Herbst appliance. Skeletally anchored appliance was connected directly to the mandible by a bilateral reconstruction bone plates to provide a skeletal anchorage, while connected to the maxilla through dental splint connecting upper canine, first premolar, first and second molars through the use of orthodontic bands connected together palatally by a heavy 1mm stainless steel wire. The treatment duration was 9 months, then the appliances were removed,The Cone Beam Computed Tomography (CBCT) scans were taken before and immediately after Herbst treatment to analyse airway volume, also 3D measurement of the effective mandibular length has been taken. Cephalometric film was extracted from CBCT scans and analysed for dentoskeletal and soft tissue changes.