View clinical trials related to Malocclusion.
Filter by:14 Patients with mild to moderate crowding and spacing will be selected according to inclusion criteria. Treatment planning will be done on Maestro® software. An impression will be taken and scanned by an extra-oral scanner. The models will be 3D printed and aligner trays will be fabricated to be delivered on biweekly basis to be worn 16 hours per day for one group and 22 hours for the other group. Superimposition of the achieved clinical model over the predicted model will be done. Linear and angular measurements will be calculated for each tooth.
A randomized clinical trial to introduce a modified 3D printed customized maxillary protraction facemask and evaluate its efficacy in comparison with the conventional maxillary protraction facemask therapy in correction of Class III malocclusion of young patients
This study includes patients who have had previous orthodontic treatments (without tooth extraction) and who have good alignment of their lower incisors. Investigators will compare two types of lingual retainers made with CAD-CAM
The purpose of this study is to assess and compare the effect of two appliances (Hybrid-Hyrax expander/ Bonded rapid maxillary expander (RME)) supported by different anchorage units and two different expansion procedures (routine rapid maxillary expansion protocol (routine)/ alternative rapid expansion and constriction protocol (alt-RAMEC)) on maxillary protraction during face mask (FM) treatment.
The goal of this controlled clinical trial is to compare the effects of two distalization methods supported by inter-radicular mini-screw for maxillary molars distalization in 20 adult patients with skeletal class I or moderate skeletal class II malocclusion, dental class II molar relationship, and full permanent dentition. The participants were randomly selected according to inclusion / exclusion criteria from the outpatient clinic of the Department of Orthodontics and Dentofacial Orthopedics, Faculty of dentistry, Ain Shams University, Cairo, Egypt. Selectees age was ranging from 18 to 25 years old. An informed consent has been signed by each patient before his / her enrollment in this study, where the aim , methodology, and possible complications were been clearly described in details. This research has been thoroughly reviewed by the Research Ethics Committee of the Faculty of dentistry, Ain Shams University.
Background: Jawline improvement is nowadays a strong patients' demand. Among patients undergoing orthognathic surgery, it remains sometimes a challenge to manage angle definition due to the classic mandibular osteotomy trait which mostly allows sagittal mandibular movements but can't modify the ramus height. A few types of osteotomies can be used to improve jawline's shape while correcting malocclusion, but they remain technically difficult and often imply the necessity for bone grafting and/or the use of a specific saw and screwdriver. The advent of computer-assisted surgical planning and computer-aided design/ computer-aided manufacturing (CAD-CAM) techniques for patient-specific implant (PSI) fabrication has enabled new methods for managing the jawline in orthognathic surgery. The aim of this study was to assess jawline improvement with patient-specific angle implants in patients undergoing orthognathic surgery with standard osteotomies.Methods: A virtual simulation of a Le Fort I osteotomy (if needed), a sagittal split ramus osteotomy with patient-specific titanium angle implants, and a genioplasty (if needed) was conducted on a preoperative three-dimensional (3D) model of each patient's skull using ProPlan CMF software (Materialise, Leuven, Belgium). Computer-assisted osteotomy saw-and-drill guides and patient-specific implants (PSIs, titanium plates and angle implants) were produced and used during the surgery. The investigators chose to focus on jawline improvement by comparing the preoperative and the post-operative 3D-photographs using the VECTRA H2 3D imagine system (Canfield Scientific, **).
The goal of this clinical trial is to show the effect of patient specific lateral nasal wall osteotomy to the pterygomaxillary separation during Le Fort I down-fracture. Participants will be divided into two treatment groups. In study group, surgery planned according to the patients' indivudial anatomy and in the conventional group, surgery planned according to mean anatomical datas. Researchers will compare patient specific lateral nasal wall osteotomy to see if it affects the pterygomaxillary junction seperation during le fort I downfracture.
This clinical trial aimed to compare the effect of immediate light short Class II elastics versus conventional Class II elastics on the skeletal, dental and soft tissues in patients with Class II malocclusion. Participants with class II malocclusion divided into 2 groups; early group wore immediate light short Class II elastics and conventional group wore conventional Class II elastics on rigid stainless steel arch wires.
The primary aim of the study is to compare the perception of pain and discomfort with two different protocols of attachments' placement during clear aligner therapy: the conventional protocol (CP), when attachments' placement is performed are placed at the delivery of the first aligner; the delayed protocol (DP), when the attachments' placement is performed at the delivery of the third aligner. The rationale of this study is to evaluate whether dividing the two phases most associated with the onset of pain and discomfort, namely the initiation of aligner therapy and the placement of attachments, can improve patients' quality of life during clear aligner treatment. Patients' discomfort will be evaluated with a questionnaire adapted by OHIP-14 (Oral Health Impact Profile 14).
use new hybrid aesthetic functional appliance for treatment of class II div 1 malocclusion.