Clinical trials: Mandibular Retrognathism
Apnea, Airway Obstruction, Nasal
Upper Airway's Pressure Drop Analyses After Mandibular Advancement and Maxillary Expansion
Breathing is a crucial function for everyone. Breathing impairment in children could lead to behavioral and cognitive problems at least.
- Conditions
- Apnea, Airway Obstruction, Nasal, Mandible Small, Maxillary Hypoplasia
- Trial name
- NCT04190953
- Testing
- Twin block then Hyrax, Hyrax then Twin block
- Where
- Canada
- Volunteers
- 90 people, healthy volunteers welcome
- Sponsor
- University of Alberta
Maxillary Retrusion
Radiological Evaluation of Anterior Maxilla For Immediate Implant Placement
According to the literature age and gender may be associated with differences in skeletal size, anatomy and architecture in humans.
- Trial name
- NCT07133503
- Testing
- radiological evaluation
- Where
- 2 sites in Turkey (Türkiye)
- Volunteers
- 278 people, healthy volunteers welcome
- Sponsor
- TC Erciyes University
Maxillary Deficiency
Paranasal Sinus Volumes of Maxillary Deficiency Patients Requiring Le Fort Osteotomy
The present study aims to compare ethmoid, sphenoid and maxillary sinus volumes of patients with maxillary deficiency requiring Le Fort osteotomy with healthy patients, by employing computed tomography imaging.
- Trial name
- NCT04637568
- Testing
- Computerized tomography
- Where
- Turkey (Türkiye)
- Volunteers
- 120 people, healthy volunteers welcome
- Sponsor
- Ankara University
Retrognathism, Prognathism
Pharmacological Treatment on the Recovery of Neurosensory Disturbance After Bilateral Sagittal Split Osteotomy
The bilateral sagittal split osteotomy (BSSO) of the mandible is one of the most used surgical techniques to achieve a harmonious jaw relation in the context of orthognathic surgery.
- Conditions
- Retrognathism, Prognathism, Orthognathic Surgery, Neurosensory Disorder
- Trial name
- NCT05536596
- Testing
- Orthognathic Surgery, Melatonin 10 MG Oral Tablet, Hydroxycobalamin
- Volunteers
- 220 people, healthy volunteers welcome
- Sponsor
- Universitat Internacional de Catalunya
Maxillary Hypoplasia, Retrognathia
CT Analysis of the Anatomy of the Nasotracheal Intubation Pathway of Patients With Indication of Maxillary Advancement
Differences in nasotracheal intubation pathway anatomy will be observed between healthy patients and patients with maxillary retrusion. The results will clarify the nasotracheal intubation tube preference for these patients.
- Conditions
- Maxillary Hypoplasia, Retrognathia, Intubation, Tomography
- Trial name
- NCT03570528
- Where
- Turkey (Türkiye)
- Volunteers
- 187 people, healthy volunteers welcome
- Sponsor
- Ankara University
Maxillary Retrusion, Nasal Airway Obstruction
Evaluation of the Effect of Three Types of Rapid Maxillary Expanders (Conventional, Hybrid and MSE)
Aim of the study: To compare radiographically the morphometric changes in the nasal airway after using three types of rapid maxillary expansion (RME) conventional hyrax (CH), hybrid hyrax (HH) and maxillary skeletal expander…
- Trial name
- NCT05446714
- Testing
- CH 4 band, HH 2 bands, MSE 2 bands and 4
- Where
- Egypt
- Volunteers
- 54 people
- Sponsor
- Al-Azhar University
Sleep Apnea Syndromes in Children, Functional Orthodontic Treatment
Evaluation of Functional Orthodontic Treatment on Sleep Quality
Functional appliances are used in the treatment of Class II anomalies caused by mandibular rethrognathia. Herbst which is a fixed and rigid functional appliance and TWB which is removable appliance can be successful in the…
- Conditions
- Sleep Apnea Syndromes in Children, Functional Orthodontic Treatment, Mandibular Retrognathia, Upper Airway
- Trial name
- NCT06660771
- Testing
- Functional orthodontic treatment
- Where
- Turkey (Türkiye)
- Volunteers
- 46 people
- Sponsor
- Gökçenur Gökçe Kara
Nasal Septum; Deviation, Congenital, Cleft Lip and Palate
Three Dimensional Changes on Nasal Septum and Alveolar Cleft After Maxillary Expansion
This study evaluates, by means of cone beam computed tomography (CBCT), the alterations in the nasal septum and alveolar cleft volume that occur in cleft lip and palate (CLP) patients after rapid maxillary expansion(RME).
- Conditions
- Nasal Septum; Deviation, Congenital, Cleft Lip and Palate, Maxillary Hypoplasia
- Trial name
- NCT03976609
- Testing
- Maxillary Expansion
- Volunteers
- 40 people
- Sponsor
- Pontifícia Universidade Católica de Minas Gerais
Maxillofacial Abnormalities, Jaw Abnormalities
Digital Occlusal Wafer Versus Waferless Distal Segment Repositioning for BSSO in Skeletal Mandibular Deformities
Research studies continues to attempt testing modifications to refine the treatment protocols through computer assisted design or computer-generated surgical Wafer splints, have greatly revolutionized the incorporation of digital…
- Conditions
- Maxillofacial Abnormalities, Jaw Abnormalities, Prognathism, Retrognathia
- Trial name
- NCT05151042
- Testing
- wafer-less approach, Computer Guided orthognathic surgery using occlusal wafers
- Where
- Egypt
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Cairo University
Mandibular Prognathism, Mandibular Retrognathism
The Effect of Deliberate Hypotension on QTc, Tp-e Intervals and Heart Rate Variability
Deliberate hypotension is defined as lowering the systolic blood pressure to 80-90mmHg, or the mean blood pressure to 50-65mmHg.
- Trial name
- NCT01634594
- Testing
- Group R, Group N, Group D
- Where
- South Korea
- Volunteers
- 66 people, healthy volunteers welcome
- Sponsor
- Yonsei University
Mandibular Retrognathism
Functional Appliance Effects on Mandibular Soft Tissues
This study aimed to evaluate the changes in mandibular and cervical soft tissues in Class II patients with mandibular retrognathia treated with the Twin Block appliance, compared to skeletal Class I patients without functional…
- Trial name
- NCT06935032
- Testing
- Twin block appliance, Fixed orthodontic treatment
- Where
- Turkey (Türkiye)
- Volunteers
- 46 people, healthy volunteers welcome
- Sponsor
- Konya Necmettin Erbakan Üniversitesi
Expansion of Maxillary Arch, Maxillary Hypoplasia
Dentoskeletal Changes Expansion Using Invisalign Versus Conventional Expander
Cbct evaluation of dentoskeletal changes after expansion using Invisalign versus conventional expander
- Trial name
- NCT05899530
- Testing
- Invisalign, Conventional expander
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Al-Azhar University
Receding Chin
Esthetic Outcome of Isolated Advancement Genioplasty With and Without Submental Liposuction in Treatment of Skeletal Chin Deficiency
This study is to measure the eshetic outcome of of isolated advancement genioplasty with and without submental liposuction in treatment of skeletal chin deficiency in double chin patients
- Trial name
- NCT04283708
- Testing
- Submental liposuction
- Where
- Egypt
- Volunteers
- 22 people
- Sponsor
- Cairo University
Class III Malocclusion, Skeletal Malocclusion
Comparison of Skeletal Anchorage Versus Conventional Tooth-Borne Face Mask Therapy Following the Alt-RAMEC Protocol
This study investigated two different methods of maxillary protraction in growing patients with skeletal Class III malocclusion characterized by maxillary deficiency.
- Conditions
- Class III Malocclusion, Skeletal Malocclusion, Maxillary Deficiency
- Trial name
- MiniFM (NCT07279662)
- Testing
- Skeletal Anchorage Supported Maxillary Protraction, Tooth-Borne Maxillary Protraction Appliance
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people
- Sponsor
- Murat Kaan Erdem
Maxillary Deficiency
Maxillary Expansion: Leaf Expander Versus Hyrax Expander
The aim of the current study was to evaluate maxillary and mandibular arch widths' response to five different appliances and clinical protocols (Rapid maxillary expander RME, Leaf Expander 450g, Leaf Expander 900g, Self-expander…
- Trial name
- LEAF (NCT05135962)
- Testing
- orthodontic - rapid maxillary expansion, orthodontic - slow maxillary expansion with leaf expander, orthodontic - slow maxillary expansion with self leaf expander
- Volunteers
- 200 people
- Sponsor
- University of Genova
Mandible Prognathism, Mandibular Retrognathism
Evaluation of the Accuracy of Patient Specific Implant in Fixation of Mandibular Sagittal Split Osteotomy
Study was Conducted on Patients were need BSSO Using PSI for reposition and fixation
- Trial name
- BSSO (NCT07222904)
- Testing
- PSI
- Where
- Egypt
- Volunteers
- 8 people
- Sponsor
- Faculty of Dental Medicine for Girls
ClassII Division 1 Malocclusion, Mandibular Retrognathism
Effects of Orthopedic Mandibular Advancement in Class II Division 1 Malocclusion on Pharyngeal Airway
This study aims at evaluating the effects of mandibular advancement on pharyngeal airway space and nocturnal breathing in children with skeletal class II division1 malocclusion.
- Trial name
- NCT04255511
- Testing
- Twin Block, Fixed orthodontic appliance
- Where
- Egypt
- Volunteers
- 50 people, healthy volunteers welcome
- Sponsor
- Mansoura University
Class II Malocclusion, Mandibular Retrognathism
Comparison Of The Effects Of Clear Aligners And Twinblock Appliances In Functional Treatment Of Class II Malocclusion
This prospective clinical study aimed to compare the skeletal and dentofacial effects of Twin Block (TWB) and clear aligners with mandibular advancement, and to evaluate mandibular trabecular bone changes through fractal analysis…
- Trial name
- NCT07454694
- Testing
- Invisalign Clear Aligners, Twinblock Functional Appliance
- Where
- Turkey (Türkiye)
- Volunteers
- 34 people
- Sponsor
- Bezmialem Vakif University
Class II Division 1 Malocclusion, Mandibular Retrognathism
Dentoskeletal Changes Produced by Growth Modification Appliances in Treatment of Skeletal Class II Malocclusion
To compare dentoskeletal changes in patients with skeletal class II malocclusion induced due to treatment with orthodontic appliances; removable twin block appliance and fixed AdvanSync2 appliance in two different age group…
- Trial name
- NCT04619446
- Testing
- Removable Twin Block, Fixed Functional , AdvanSync Appliance
- Where
- Pakistan
- Volunteers
- 30 people
- Sponsor
- Dr. Fareena Ghaffar
Orthodontic Appliance Design, Retrognathism
Effect of the Innovated Seifi's Functional Appliance on Skeletal and Dentoalveolar Changes of Class II/ 1, Deep Bite
For improving the appearance of protruded upper front teeth when lower front teeth may touch palatal mucosa or have proximity to that; the innovated Seifi's Functional Appliance may be used.
- Conditions
- Orthodontic Appliance Design, Retrognathism, Malocclusion, Angle Class II, Deepbite
- Trial name
- Seifi-Fx (NCT00688233)
- Testing
- Seifi's Functional
- Where
- Iran
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Shahid Beheshti University of Medical Sciences