View clinical trials related to Malocclusion.
Filter by:The purpose of this study is to determine whether personalized titanium plates can achieve better accuracy than CAD/CAM surgical splint in maxilla repositioning in orthognathic surgery, and evaluate the feasibility of this technique in clinical application.
The TwiCare® device is a removable brace that can be used in orthopedic referred to stimulate mandibular growth or in interception / contention. The proposed research project will focus initially on assessing the comfort and safety of TwiCare® device. The orthopedic efficiency therefore not part of this study. The comfort and safety of the brace will be evaluated firstly by the practitioner during the visit control around 2 ½ months (or 11 weeks) after the start of the port of the device, and with the help of a questionnaire completed by the patient at home 3 weeks and 6 weeks after the start of the port of the device, and during the control visit at 11 weeks.
Purpose: The objective of this study is to investigate the effects of accelerated Invisalign and vibration therapy on rate of orthodontic tooth movement, activation of inflammation biomarkers as well as pain levels experienced by orthodontic patients during the initial 12 weeks of alignment. Participants: Up to 30 orthodontic patients of the University of North Carolina Orthodontic Residency Program will be recruited for this study. Patients older than 18 years old will be otherwise healthy subjects previously diagnosed with malocclusion. Procedures (methods): Each patient will be randomly allocated into either a control group or one of two intervention groups. Patients within the control group will receive standard Invisalign therapy without vibration. Patients within the intervention groups will receive accelerated Invisalign therapy with or without vibration. Patients receiving vibration therapy will utilize an AcceleDent Aura device which provides a light vibration at .25 Newtons (N) and 30 Hertz (Hz) frequency for twenty minutes daily. Three dimensional images of each subject's dentition will be recorded five times at 0 days, 4 days, 2 weeks, 6 weeks, and 12 weeks progress visits.
Numerous treatment protocols geared towards accelerating orthodontic treatment have emerged in the past few years as an appealing alternative for patients and practitioners. In the context of a thin biotype, these approaches pose a burden that could precipitate periodontal detrimental changes. Therefore, case selection and the implementation of periodontal biotype enhancing strategies become a relevant consideration to ensure long-term successful treatment outcomes. This study focuses on the biological and clinical value of the use of a porcine naturally cross-linked collagen matrix known as Mucograft®. Within the scope of Surgically Accelerated Orthodontic Treatment (SAOT) the structural and material features of Mucograft® provide: 1) A protective effect to the thin biotype upon rapid orthodontic protusive/proinclination movements and 2) Mucograft® enhances the therapeutic window effect that supports an increase on tooth movement rate. The designs of this randomized controlled clinical trial includes a cohort of 40 subjects distributed on the following groups I) Ortho tx, II) Ortho tx + Decortication, III) Ortho tx + Decortication + Mucograft®, and IV) Ortho tx + Mucograft®. Comparing clinical, tomographic and digital impression derived measurements will capture the clinical phenotype; while the biologic phenotype will be derived from evaluating crevicular fluid levels of tooth movement mediators such as Interleukin 1-β and Interleukin-1RA. The significance and innovative value of this proposal stems from the use of Mucograft® as an ideal collagen-based biotype enhancer when performed along with the corticotomy. This approach could prove to be effective to further increase the therapeutic window that allows accelerating orthodontic treatment and, at the same time, could decrease the recession risk in movements of proclination of antero-inferior incisors. Besides, the use of a collagen scaffold alone could potentially trigger a comparable orthodontic acceleratory outcome that could be evaluated as an alternative to decortication.
A prospective study measuring changes in upper airway anatomy, quality of life measures, and polysomnographic parameters using a functional dental appliance (Homeoblock)
The aim of the study is to follow a group of preschool children from early permanent dentition to determine the prevalence and incidence of caries malocclusions and to investigated the related risk factors as age, gender, ethnic origin and non-nutritive sucking habits, breathing disturbances, allergies, Dietary habits, oral hygiene status and dental care.
Compare the impact of using rapid maxillary expanders on masticatory muscle activities (Masseter and Anterior Temporalis muscles) among different posterior cross-bite patient (unilateral, bilateral) as well as compare the cross-bite side and non-cross-bite sides of the same preadolescent unilateral crossbite patient before the expansion and after one month of the completion treatment period using surface electromyography device.
Class III malocclusions may originate in a retrognathic maxilla, a prognathic mandible or both. Young patients with class III malocclusion and maxillary hypoplasia are conventionally treated with a protraction facemask in order to stimulate forward growth of the upper jaw. This treatment option is often inducing unwanted side effects including mesial migration of the teeth in the upper jaw and clockwise rotation of the mandible. Because skeletal effects are often difficult to achieve with this approach, more pronounced class III malocclusions cannot be addressed by face mask therapy. These children cannot be treated during childhood and end up in major orthognathic surgery at full-grown age. To be able to treat also the more pronounced class III malocclusion and to minimize dentoalveolar compensations new treatment methods were developed which uses skeletal anchorage.
This study protocol is for a randomised clinical trial which aims to test two materials used as orthodontic archwire to compare FireWire archwires to Copper Nickel Titanium (CNiTi) archwires. Both professional and patient related outcome measures are to be used to fully evaluate performance.
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 (YAG) laser group. In each group, piezocision or hard laser-assisted flapless corticotomy will randomly assigned to one side of the maxillary arch at the first premolar region, and the other side served as the control. Canine retraction will be initiated after completion of the leveling and alignment phase via closed nickel-titanium coil springs applying 150 g of force per side, soldered trans-palatal arch will be used as an anchor unit. Pre- and post distalization dental casts will be evaluated to study rate of canine distalization, canine rotation and anchorage loss over a follow-up period until a Class I canine relationship is achieved. The levels of pain and discomfort will be self-reported using a questionnaire with visual analog scales administered at four assessment times during the first month after the minimally invasive procedure.