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Class III Malocclusion clinical trials

View clinical trials related to Class III Malocclusion.

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NCT ID: NCT06452368 Completed - Clinical trials for Class III Malocclusion

Palatal Versus Buccal Protraction Using Plates Assisted With Facemask in Growing Class III Patients

Start date: October 1, 2022
Phase: N/A
Study type: Interventional

to compare Palatal and buccal protraction using plates assisted with facemask in growing class III patients

NCT ID: NCT05397002 Completed - Clinical trials for Class III Malocclusion

Patient Specific Intraoral Inverted-L Osteotomy Modified With Inferior Alveolar Nerve Relocation in Corrective Mandibular Surgery

Start date: October 1, 2020
Phase: N/A
Study type: Interventional

Bilateral sagittal split osteotomy (BSSO) is considered the main osteotomy design in corrective mandibular surgery, however abnormal anatomical configuration of the posterior mandible with rolled out inferior border and thin mandibular rami with cortically adherent inferior alveolar nerve may interfere with the utilization of this osteotomy. The aim of this study is to introduce a novel modification of the intraoral inverted L ramus osteotomy (ILRO) to overcome these limitations in mandibular setback surgery. preoperative CBCT was requested for virtual planning and fabrication of cutting and drilling guides. Cutting lines were outlined to be consisted of four cuts; lateral ostectomy to uncover and lateralize the inferior alveolar nerve (IAN), posterior cut run horizontally from the anterior border of the ramus to a point just above the mandibular foramen, two anterior vertical cuts run from the anterior end of the lateral ostectomy to the inferior mandibular border. The guide was removed and the osteotomy lines were completed then the mandibular setback was oriented and fixed using pre-bent plates osteosynthesis. Inferior alveolar nerve function was regained perfectly one year post-operatively. This procedure introduces a robust alternative to the BSSO osteotomy in some cases of mandibular setback surgery.

NCT ID: NCT05350306 Completed - Clinical trials for Class III Malocclusion

The Effects of the Chin Cup on Temporomandibular Joint and Mandibular Dimensions

Start date: January 1, 2019
Phase: N/A
Study type: Interventional

This in vivo comparative study will evaluate the changes in the mandibular dimensions and the glenoid fossa after skeletal class III subjects' therapy by chincup appliance and compare it with an untreated class III control group. Pre and post-treatment low-dose computed tomography images will be taken before and after achieving positive overjet and undergoing 16 months of active treatment/ observation. Dimensional and volumetric changes in the mandible, condyles, and glenoid fossa will be calculated and compared to those observed in the control group.

NCT ID: NCT05280678 Completed - Clinical trials for Class III Malocclusion

Success Rate of the Miniscrews in the Mandibular Buccal Shelf

Start date: January 2016
Phase: N/A
Study type: Interventional

Stability of the orthodontic miniscrews placed in the mandible is still considered to bare higher risk of failure compared to other intraoral locations. The aim of our study was to determine the influence of the miniscrew size on their long-term stability, occurrence of oral mucosa inflammation and pain lasting over 48 hours after implantation.

NCT ID: NCT05216874 Recruiting - Clinical trials for Class III Malocclusion

The Effect of Splint Usage in Laterognathic Cl III Orthognathic Surgery Patients

TMJ
Start date: January 13, 2022
Phase: N/A
Study type: Interventional

It is crucial to maintain the anatomic condylar positions during orthognathic surgery. Condylar positions are affected directly under general anesthesia because of joint and muscle relaxation. Possible unwanted changes in the joint position may cause incorrect positioning of the jawbones. This could affect the success of the surgery in terms of function and facial aesthetics causing the need for a second surgery. Our aim is to evaluate whether the use of MR Splint has a statistically significant effect on muscle relaxation-induced condyle position deviations under general anesthesia in Class III Laterognathia patients.

NCT ID: NCT05114642 Completed - Clinical trials for Class III Malocclusion

The Effect of Orthopedic Face Mask Use on Head Posture and Pharyngeal Airway

Start date: November 30, 2019
Phase: N/A
Study type: Interventional

The aim of this study was to evaluate the changes in head posture, position of the hyoid bone, pharyngeal airway and cervical posture after the use of Petit type face mask in patients with skeletal class III malocclusion (ANB angle < 0) with ongoing growth. No other study was found in the literature in which head posture, cervical posture, and hyoid bone position were evaluated after the use of a face mask and compared with a control group consisting of patients of the same age group and the same malocclusion.

NCT ID: NCT04911400 Enrolling by invitation - Clinical trials for Class III Malocclusion

Effects of Class III Elastics on Stability of Orthopaedic Class III Correction

Start date: July 22, 2020
Phase: N/A
Study type: Interventional

The purpose of this study is to evaluate the effects of adding elastics to orthodontic retainers on the stability of class III correction and whether it reduces the need for jaw surgery.

NCT ID: NCT04905004 Recruiting - Clinical trials for Class II Division 1 Malocclusion

Efficiency of Canine Retraction Using Different Reactivation Intervals

Start date: April 1, 2017
Phase: N/A
Study type: Interventional

Canine retraction after 1st premolar extracion into the extraction space is a routine treatment in orthodontics. Orthodontic patients requiring first premolar extraction, canine retraction and maximum anchorage were recruited for this randomized controlled trial. A search of the literature did not indicate the ideal frequency of elastomeric chain reactivation for optimum canine retraction. The study was approved by the ethical committee. The first premolars were extracted. Elastomeric chains were used to retract the canine distally into the 1st premolar space. The optimum reactivation interval was evaluated regarding the efficiency of treatment in terms of rate of canine retraction, canine tipping and rotation, root resorption and pain at the intervals of 2, 4, 6 and 8 weeks. Three dimensional imaging, as well as digital scanning were the methods for data collection.

NCT ID: NCT04887974 Completed - Clinical trials for Class II Malocclusion

Canine Retraction With Temporary Anchorage Devices

Start date: April 2, 2016
Phase: N/A
Study type: Interventional

Various malocclusions require the extraction of the first premolars and retraction of the canines with the need for maximum anchorage. If the canines are pulled into the extraction space using the molar teeth for support, unwanted tooth movement occurs. This study aims to evaluate the effect of temporary anchorage devices and power arms, which are auxiliary orthodontic appliances in reducing undesirable tooth movements.

NCT ID: NCT04863404 Recruiting - Clinical trials for Class III Malocclusion

Evaluation of the Treatment Effects of Tooth Borne Versus Bone-anchored Protraction Procedures in Class III Patients With Maxillary Deficiency

Start date: June 15, 2020
Phase: N/A
Study type: Interventional

The aim of this prospective randomized controlled clinical study is to compare the effects of bone-anchored and tooth borne maxillary protraction on dentofacial structures in skeletal Class III patients.