Clinical trials: Micrognathism
Class II Malocclusion
The Use of an Esthetic Twin Block for Patients With Mandibular Retrusion
This experimental study will evaluate the effect of an esthetic Twin-block appliance on the correction of class II malocclusion compared with the traditional Twin-block appliance.
- Trial name
- NCT05418413
- Testing
- CTB, ETB
- Where
- Syria
- Volunteers
- 50 people
- Sponsor
- Damascus University
Growth Modification
Three-Dimensional Assessment of Dentoskeletal Changes Associated With a Modified Twin Block Appliance
The aim of the current study is to evaluate the skeletal, dental, soft tissue, TMJ, and upper airway size changes associated with a new design of twin block compared to the conventional twin block appliance.
- Trial name
- NCT06589206
- Testing
- modified design of twin block
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Cairo University
Mandibular Hypoplasia
Juvederm Voluma® XC for the Treatment of Hypoplastic Chin
This is a single center study of the safety and efficacy of Juvedérm Voluma for the treatment of hypognathism. Each qualified subject will undergo treatment with Juvedérm Voluma in the anterior and lateral chin for volume…
- Trial name
- VolumaChin (NCT02330016)
- Testing
- Voluma XC
- Where
- United States
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Kenneth Beer
Class II Division 1 Malocclusion
Effect of Modified Twin Block in Skeletal Class II Growing Females With Mandibular Deficiency
The aim of this study is to evaluate the treatment effects of conventional twin block appliance versus modified twin block appliance in the treatment of patients in growing stage having skeletal class II division 1 with…
- Trial name
- NCT03635463
- Testing
- twin block appliance, modified twin block appliance
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Cairo University
Malocclusion, Angle Class II
Effects of Modified Fixed Twin Block Versus Removable Twin Block on Skeletal Class 2 Growing Patients With Mandibular Deficiency
Effects of modified fixed twin block versus removable twin block on skeletal class 2 growing patients with mandibular deficiency: A Randomized Clinical Trial
- Conditions
- Malocclusion, Angle Class II, Mandible Small
- Trial name
- NCT05993156
- Testing
- modified Fixed twinblock, removable twin block
- Where
- Egypt
- Volunteers
- 24 people
- Sponsor
- Cairo University
Thyroid Diseases
Comparing Harmonic Ultrasonic Scalpel to Small Jaw Bipolar Device in Thyroid Surgery
Energy devices are used routinely during thyroid surgery to aid surgical dissection and to stop bleeding. The newer generation energy devices have several advantages over older machines.
- Trial name
- NCT01765686
- Testing
- Harmonic Scalpel (Ethicon Endo-Surgery, USA), Ligasure Small Jaw (Covidien, USA)
- Where
- 2 sites in Singapore
- Volunteers
- 100 people
- Sponsor
- National Cancer Centre, Singapore
Skeletal Malocclusion
Cephalometric Evaluation of a Clear Mandibular Advancement Appliance Based on the Twin-block Design
This study evaluates the cephalometric effects of a clear mandibular advancement appliance for the treatment of skeletal class II growing patients suffering from mandibular deficiency.
- Trial name
- NCT03824574
- Testing
- Clear Mandibular Advancement Appliance
- Volunteers
- 20 people
- Sponsor
- Ain Shams University
Schizophrenia, Micrognathia
The Relevance Between the microRNA-30e in Plasma and the Prognosis of Schizophrenia Patients
This study investigates the relationship of circulating microRNA-30e and schizophrenia, and shows the relevance of the aberrant microRNA-30e expression in plasma with the variation disease status.
- Trial name
- NCT03007303
- Testing
- Atypical Antipsychotic, atypical antipsychotic combined with MECT
- Where
- China
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Dalian Seventh People's Hospital
Mandibular Retrognathism, Mandibular Hypoplasia
Twin Block Appliance in Incremental Versus Maximum Bite Advancement in Skeletal Class II
The aim of this study is to compare to different protocols to treat Class II malocclusion in growing subjects using the twin block appliance
- Trial name
- NCT04562545
- Testing
- Modified Twin Block, Twin Block Appliance set to maximum bite
- Where
- Egypt
- Volunteers
- 24 people
- Sponsor
- Cairo University
Hip Prosthesis Infection
Single-stage Surgery With Antibiotic-loaded Hydrogel Coated Implants Versus Two Stage Surgery for Secondary Prevention of Complex Chronic Periprosthetic Hip Joint Infection
Each year, around 1500 infected Total Hip Arthroplasties (THA) need non-conservative surgery, remaining an issue for patients and healthcare units.
- Trial name
- SINBIOSE-H (NCT04251377)
- Testing
- Defensive Antiadhesive Coating DAC®, Novagenit SRL
- Where
- 14 sites in France
- Volunteers
- 39 people
- Sponsor
- Centre Hospitalier Universitaire de Saint Etienne
Mandibular Deficiency
Vertical Ramus Osteotomy With Iliac Graft Versus Sagittal Split Osteotomy
Patients will be collected from faculty of dentistry bilateral vertical ramus osteotomy (VRO )with iliac graft group (group I):- 10 patients will be treated via VRO and iliac crest or bilateral sagital spilt osteotomy (BSSO)…
- Trial name
- NCT06850194
- Testing
- vertical ramus osteotomy with iliac graft, bilateral sagittal splitting osteotomy
- Where
- Egypt
- Volunteers
- 20 people
- Sponsor
- Fayoum University
Mandibular Deficiency
Accuracy of Implant Placement for Patients With Mandibular Reconstruction Using Dynamic Navigation and Static Guides
To evaluate and compare the accuracy of implant placement using dynamic navigation technique versus static template technique in patients with bone tissue flap reconstruction of mandibular defects, thus further guiding the…
- Trial name
- NCT06250907
- Testing
- The guidance of dynamic navigation, The guidance of static template
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Shanghai Ninth People's Hospital Affiliated to Shanghai Jiao Tong University
Subglottic Stenosis (SGS), Pierre Robin Sequence (PRS)
Functional Modeling of the Pediatric Airway
The investigators hypothesize that a functional computational model that simulates the mechanical and aerodynamic behavior of the upper airway in children with Pierre Robin Sequence (PRS) and laryngeal lesions (e.g.
- Conditions
- Subglottic Stenosis (SGS), Pierre Robin Sequence (PRS), Micrognathia, Normal Controls From CT Scans of the Upper Airway
- Trial name
- NCT01690078
- Where
- United States
- Volunteers
- 39 people
- Sponsor
- University of North Carolina, Chapel Hill
Skeletal Class 2
Evaluation of the Effects of Flat and Modified Inclined Fixed Anterior Bite Planes on Mandibular Position in Growing Females With Skeletal Class 2 Malocclusion Due to Mandibular Deficiency and Deep Bite
This study will be conducted to see if unlocking mandible from deep bite in growing females by flat fixed anterior bite plane will change mandibular position in skeletal mandibular deficiency and if there is a difference in the…
- Trial name
- NCT03308175
- Testing
- flat fixed anterior bite plane, modified inclined fixed anterior bite plane
- Where
- Egypt
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Cairo 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
Mandibular Hypoplasia
Applicability Clinic of Cement Portland Structural White in Endodontic Surgery
Thirty teeth twelve patients, two female and a male, who had persistent periradicular lesions were selected to participate in this study.
- Trial name
- NCT02474615
- Testing
- ENDODONTIC SURGERY
- Volunteers
- 12 people, healthy volunteers welcome
- Sponsor
- Universidade do Vale do Sapucai
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
TMJ Disorder, Mandibular Deficiency
Virtual Planning of Total TMJ Replacement
Virtual Planning of Total TMJ Replacement
- Conditions
- TMJ Disorder, Mandibular Deficiency, TMJ Ankylosis
- Trial name
- TJR (NCT07643259)
- Testing
- Custom made TMJ
- Where
- Egypt
- Volunteers
- 8 people
- Sponsor
- Faculty of Dental Medicine for Girls
Head and Neck Neoplasms
LigaSure Small Jaw® Versus Conventional Neck Dissection in Head and Neck Cancer Patients
The aim of this prospective randomized study was to investigate if the LigaSure vessel sealing system can reduce the operation duration and the postoperative drainage amount in patients undergoing neck dissection.
- Trial name
- NCT02597582
- Testing
- Neck dissection
- Where
- Taiwan
- Volunteers
- 41 people
- Sponsor
- Taichung Veterans General Hospital