View clinical trials related to Malocclusion.
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Evaluation of the effects of the implementation of a new finishing protocol in orthodontics patients
This study evaluates the dentoskeletal effects produced by two maxillary protraction protocols in adolescent patients. Half of participants will be treated with a tooth-borne and tooth-bone-borne expanders as anchorage in the maxillary arch. Miniscrews will be used as anchorage in the mandibular arch for both groups.
This study will assess the dentoskeletal effects of two types of maxillary expanders in orthodontic patients in the mixed dentition, from 7 to 11 years old. Half of participants will be treated using the expander with differential opening, while the other half will undergo rapid maxillary expansion using the fan-type expander. The null hypothesis is that there is no difference between dentoskeletal effects of the two protocols.
This study compares the dentoalveolar and skeletal effects of bonded spurs associated with build-ups versus conventional bonded spurs in the early treatment of anterior open bite patients. Half of participants will be treated with bonded spurs associated with build-ups, while the other half will be treated with conventional bonded spurs. The null hypothesis to be tested is that there are no differences for the dentoalveolar and skeletal effects between the two protocols.
OrthoPulse is a device that uses near-infrared light therapy in order to decrease orthodontic treatment time. The aim of this study is to evaluate OrthoPulse products modified with extended arrays, OrthoPulse 2.0 and OrthoPulse 2.1, and to assess their clinical effectiveness.
This study will evaluate the efficacy of rapid maxillary expansion (RME) and slow maxillary expansion (SME) in treating posterior crossbite using cone beam computed tomography. The study sample will consist of 32 patients who suffer from a skeletal posterior crossbite. The sample will be allocated randomly into two groups: RME group and SME group. The skeletal and dento-alveolar changes occurring after treatment will be assessed by using cone beam computed tomography(CBCT) radiographs.
Patients at the Orthodontic Department of University of Damascus Dental School will be examined and subjects who meet the inclusion criteria will be included. Then, initial diagnostic records (diagnostic gypsum models, internal and external oral photographs, as well as radiographic images) will be studied to ensure that the selection criteria are accurately matched. The aim of this study is to compare flapless bone cutting by mechanical drills to evaluate the acceleration of the retraction of upper canines versus traditional bone cutting by piezo-surgery in comparison with a control group without bone cutting after extraction of upper first premolars in class II type I patients.
Patients at the Orthodontic Department of University of Damascus Dental School will be examined and subjects who meet the inclusion criteria will be included. Then, initial diagnostic records (diagnostic gypsum models, internal and external oral photographs, as well as radiographic images) will be studied to ensure that the selection criteria are accurately matched. The aim of this study is to compare two groups of patients with moderate crowding of the lower anterior teeth First group (Experimental): the patients in this group will be treated with orthodontic fixed appliances + surgery to the alveolus of the lower anterior teeth in order to induce remodeling of the bony structures and enhance orthodontic movement. Second group (Control): the patients in this group will be treated using fixed appliances with any acceleration method.
The general trend in the orthodontic practice is to become digital in many aspects. Since 1980s, digital photographs have been available and they play a principal role in the orthodontic practice for documentation and diagnosis purposes. Now photographs have an important role in teaching, scientific research and medical examination. Successful orthodontic treatment is based on a comprehensive diagnosis and treatment planning. A few of the fundamental factors in the diagnosis are the spacing condition, tooth size, arch form and dimensions, as well as the tooth-arch discrepancies. Intraoral photographs' major role is to enable orthodontists to document and analyze the occlusal relationships as well as the dental and soft-tissue features in order to arrive at a good diagnosis and an appropriate treatment plan. In 1975, Robert Little developed Little's irregularity index (LII). The index was proposed to assess teeth irregularity, crowding, relapse, and alignment of anterior teeth as it measured the linear displacements in the horizontal plane between contact points of anterior teeth, ignoring vertical displacement, from mesial surface of one canine to the contra-lateral one. The sum of the 5 liner measurements of displacements was the LII score. The higher the index value, the more severe irregularity of the teeth was. LII has been originally developed for mandibular incisors to study relapse; however, researchers have used it to assess upper and lower incisors irregularity Tooth-size-arch-length discrepancy (TSALD) is widely used on study models to assess the level of harmony between tooth size and the supporting basal bone. Bolton analysis is another important measurement used to identify disharmony between maxillary and mandibular tooth size which is considered an important factor to ensure the success of orthodontic treatment. With the application of the suggested formulas, the overall ratio should be 91.3% (±1.91) and the partial (anterior) ratio should be 77.2% (±1.65). The validity and reliability of performing the above mentioned analyses on images taken of the dental arches have not been evaluated yet in the literature. This is the aim of the current project.