View clinical trials related to Maxillary Expansion.
Filter by:The aim of this study will to evaluate the root resorption after RME by hyrax and hybrid hyrax appliances by using of cone beam computed tomography .
Maxillary expanders are orthodontic appliances that are commonly used to expand the upper jaw. The purpose of this study will be to compare the effects produced by two different maxillary expanders in children 8-13 years old. The first type of expander is made by hand in an orthodontic laboratory, and the second type of expander is designed on a computer and printed using 3D printers. Both expanders are already used in the MUSC Orthodontics Clinic. The purpose of this study is to see if the 3D printed expander is as effective as the traditional expander made by hand in the laboratory, with more comfort to the patient. Patients participating in the study will be randomly assigned to one of two groups: group A will be treated with a laboratory-made maxillary expander, and group B with a 3D-Printed maxillary expander. Information will be collected on the participants' standard clinical follow-up visits including photos, x-rays, and dental photo scans over the course of 6 months to see how the expander is working. In addition, as part of the research study, the participant will be asked to complete online questionnaires with assistance from parents or guardians about his/her quality of life and perception of possible pain and discomfort at different time points. The potential benefits of this study include the use of 3D technology to improve the quality of the orthodontic treatment, with more comfort to the patient.
This trial aims to evaluate the effect of different micro-invasive methods (piezoelectric and micro-osteoperforation) along with tooth-tooth borne RPE compare to tooth-bone borne MARPE on the amount of mid-palatal sutural separation in late adolescent patients. Null Hypothesis There is no effect of adjunctive micro-invasive methods (piezoelectric and microosteoperforation) on mid-palatal suture separation with tooth-tooth borne RPE appliance compared to tooth-bone borne MARPE
Posterior crossbite (PCB) is defined as the presence of one or more teeth of the posterior group (canine to third molar) in an inverted buccolingual relationship, where the vestibular cusp of the upper tooth is in contact with the central fossa of its lower antagonist tooth. It is one of the most common malocclusions in children, with a prevalence of 8 to 22% among orthodontic patients in primary and mixed dentition and 5 to 15% among the general population. It can be bilateral (MCPB) or unilateral (MCPU). In 71-84% of cases, CCM in growing patients appears as a functional CCBM and is therefore associated with a functional mandibular deviation. The hypothesis of this study is, that unilateral posterior crossbite correction by Rapid Maxillary expansion achieves improved symmetry and muscle activation potential in treated patients. The objective of this study is to evaluate the muscle activity of masticatory muscles in patients with unilateral posterior crossbite with superficial electromyography before and after treatment with rapid maxillary expansion. Superficial electromyography will be measured in masseter and temporalis muscle before treatment, when the patients bite is corrected and after the treatment. Three static and two dynamic tasks will be measured.
Rapid maxillary expansion and quad-helix are two well established appliances in dentistry used for posterior cross bite treatment. This study aims to compare this two different appliances in patients in their early mixed dentition, regarding treatment effects of the extra oral soft tissue but also dental and skeletal effects, if the children experience any pain and discomfort during treatment and the study also aims to make a cost minimization analysis. Comparison of these different treatments are barely made and no randomized controlled trial is yet published. No study has evaluated the difference of subjective experience during these two treatments. After this study we will know which one of these two appliances are the most effective, regarding cost minimization and treatment result but we are also able to put it in relation to the patients subjective experience
This randomized controlled trial is designed to compare between quadlelix appliance vs hyrax expander regrading the their effectiveness in maxillary expansion in patients with cleft.