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Malocclusion, Angle Class II clinical trials

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NCT ID: NCT06308640 Active, not recruiting - Clinical trials for Class II Malocclusion

Evaluation of Maxillary Molar Distalization With Two Bone Supported Protocols Using Cone Beam Computed Tomography

Start date: January 10, 2024
Phase: N/A
Study type: Interventional

The goal of this clinical trial is to to evaluate and compare the skeletal and dental changes of bone supported Fast Back and bone supported modified Leaf Spring Self-Activated Expander in bilateral distalization of maxillary molars using CBCT in Egyptian people. The main question it aims to answer are: • If bone supported Fast Back and bone supported modified Leaf Spring Self-Activated Expander will be effective in bilateral distalization of maxillary molars The patients will be selected according to the following criteria: 1. Patient with full permanent dentition. 2. Good oral hygiene. 3. None of the patients had received any orthodontic treatment. 4. Class II molar relationship. 5. Minimal or no crowding in the mandibular arch. 6. Non-extraction treatment plan with molar distalization. 7. Low angle cases. 8. No medical problems or active periodontal disease. Researchers will compare between bone supported Fast Back appliance and bone supported modified Leaf Spring Self-Activated and see if they will be effective in maxillary molars distalization.

NCT ID: NCT06297109 Recruiting - Clinical trials for Malocclusion, Angle Class II

Maxillary Patient Specific Implants in Bimaxillary Orthognathic Surgery

Start date: September 12, 2023
Phase: N/A
Study type: Interventional

Orthognathic surgery is a type of jaw surgery where a surgeon cuts the bones of the upper and lower jaw and places them better. There are two ways they can put the bones in the correct place and keep them in place after the surgery. One way, called the "conventional method", is to use a 3D-printed guide called a splint to set the bones in the right place and then screw the bones together using metal plates that the surgeon bends into shape to fit during the surgery. Another way is to use a patient-specific implants (PSI) that has been 3D-printed in titanium beforehand that because of its unique shape both places and keeps all the bones in the correct place after they are screwed in. Both ways of doing it are golden standards, meaning they are already approved. Measuring the accuracy of the surgery is done by comparing the positions of the bones after the surgery with the intended positions of those bones, according to the surgical plan. The closer the achieved position of each bone is to the intended position, the more accurate the result. Measuring the stability of the surgery is done by comparing the positions of the bones after the surgery with the positions of the bones two years later. The less the position is changed, the more stable the result. The goal of this clinical trial is to see how accurate and stable PSIs are in orthognathic surgery when the maxilla is split in 3 pieces, and to compare them with the conventional method in patients with overjet or overbite. The main questions it aims to answer are: - Does using PSIs provide accurate movements of the maxilla pieces? - Does using PSIs provide more accurate movements of the maxilla pieces than the conventional method? - Does using PSIs provide stable movements of the maxilla pieces after 2 years? - Does using PSIs provide more stable movements of the maxilla pieces than the conventional method? Participants will get orthognathic surgery as part of their normal orthodontic treatment. Investigators will compare the PSI and conventional groups to see if the PSIs are more accurate than the conventional method.

NCT ID: NCT06240923 Completed - Clinical trials for Malocclusion, Angle Class II

"Three Dimensional Assessment of Maxillary Molars Following Distalization Using Two Different Approaches"

Start date: January 2, 2017
Phase: N/A
Study type: Interventional

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.

NCT ID: NCT06232928 Completed - Clinical trials for Class II Malocclusion Division 1

Early Versus Late Intermaxillary Elastics in Patients With Class II Malocclusion

Start date: April 1, 2021
Phase: N/A
Study type: Interventional

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.

NCT ID: NCT06209125 Completed - Clinical trials for Class II Malocclusion

Evaluation of Skeletal and Dental Effect of the New Hybrid Aesthetic Functional Appliance

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

use new hybrid aesthetic functional appliance for treatment of class II div 1 malocclusion.

NCT ID: NCT06209086 Completed - Clinical trials for Class II Malocclusion

Effects of Skeletal Anchored Versus Incisal Capped Twin Block Appliance in Class II Malocclusion

Start date: May 12, 2021
Phase: N/A
Study type: Interventional

: the purpose of this study was to evaluate the dento-skeletal effects of the mini-implant supported Twin Block versus the incisal capped appliance in the treatment of skeletal class II patients with mandibular retrognathism. Methods: Twenty patients with skeletal class II mandibular retrusion were included in the study. They were recruited with a random and equal allocation into 2 groups. The first group was treated with incisal capped TB without skeletal anchorage. The second group were treated with mini-implant supported TB. The mini-implants were inserted in the inter-radicular region between the mandibular second premolar and first molar. Intra-oral elastics were attached from the mini-implant to the wire hook in the canine region of the lower part of the TB and they were changed every 24 hrs. 100 to 150 gm of force was applied. Cephalometric radiographs were acquired at the beginning (T1) and end of treatment (T2). The paired-samples and independent-samples t-tests were used to evaluate and compare the changes within groups and between groups, respectively.

NCT ID: NCT06170099 Recruiting - Clinical trials for This Study Focus on the Effect of Low-Level Light Therapy on the Amount of Upper Molar Distalization

Assessment of Low Level Laser Therapy Effect on Treatment Outcomes of Bony Supported Distal Jet for Correction of Angle Class II Malocclusion (Randomized Clinical Trial)

LLLT
Start date: February 20, 2020
Phase: N/A
Study type: Interventional

The goal of this randomized clinical trial is to compare the effect of LLLT in adolescent patient with class II malocclusion. The main question it aims to answer is: • is there a difference in the amount of distalization between laser and control groups? Participants will received bony supported distal jet. Researchers will compare laser group with control group to see if there is a difference in amount of distalization between groups.

NCT ID: NCT06116500 Active, not recruiting - Clinical trials for Class II Malocclusion

Effectiveness of Modified Functional Appliance With Expander

Start date: May 9, 2023
Phase: N/A
Study type: Interventional

This clinical trial compares the effectiveness of a myofunctional appliance that uses a clear and modified twin block appliance with an expander made from 2mm biocompatible polyethylene terephthalate modified with Glycol thermoplastic material with a conventional twin block appliance with an expander. The trial will be conducted on adolescent patients with class II division 1.

NCT ID: NCT06098885 Completed - Clinical trials for Third Molar Impaction

The Effect of Different Treatment Modalities of Class II Malocclusion on Upper Third Molars.

Start date: September 4, 2021
Phase:
Study type: Observational

What is the effect of the different treatment modalities (distalization versus upper premolar extraction) of class II malocclusion on the position, inclination and incidence of impaction of the upper third molars?

NCT ID: NCT06024382 Completed - Clinical trials for Class II Malocclusion

The Effect of Low-level Laser Therapy on Functional Treatment of Skeletal Class II Patients

Start date: October 26, 2022
Phase: N/A
Study type: Interventional

this is a controlled clinical trial with 2 groups of patients of class II skeletal discrepancy due to mandibular retrusion one group is treated with twin block functional appliance and the other with twin block combined with low level laser therapy ,the study aims to detect the effect of low level laser on the skeletal outcomes , dentoalveolar outcomes, rate of correction and pain during treatment