Clinical trials: Mandibular Retrognathia
Maxillary Hypoplasia
Effectiveness of SARPE With 3 and 2-Segment Technique: A Randomized Clinical Trial
A few studies state that 3-segment SARPE has the following advantages: a) higher level of expansion symmetry; b) higher level of stability of the expansion achieved; and c) faster bone healing.
- Trial name
- 3S/2S_SARPE (NCT02179593)
- Testing
- 2-Segment SARPE, 3-Segment SARPE
- Where
- Brazil
- Volunteers
- 50 people
- Sponsor
- Federal University of São Paulo
Maxillary Deficiency, Alveolar Bone Loss
Completely Versus Partially Guided Zygomatic Implant
The aim of study is evaluation of accuracy of completely versus partially limiting computer generated surgical three-dimensional guides during placement of zygoma implants in patients with atrophic maxillae.
- Trial name
- NCT06227351
- Testing
- completely limiting computer generated surgical three-dimensional guide, Partially limiting computer generated surgical three-dimensional guide
- Where
- Egypt
- Volunteers
- 6 people
- Sponsor
- Fayoum University
Maxillary Retrognathism, Children
Treatment of Mandibular Overjet in Children With Maxillary Retrognathism
The project involves a 10-year prospective longitudinal cohort multicentre study where orthodontic treatment and treatment effect is followed in children with Cl III due to maxillary retrognathia who undergo standardized…
- Conditions
- Maxillary Retrognathism, Children, Treatment, Class III Malocclusion
- Trial name
- NCT07706400
- Testing
- Interceptive treatment
- Where
- 3 sites in Denmark, Sweden
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Malmö University
Prognathism, Retrognathia
Transoral Versus Transbuccal Placement of Bicortical Screws During Orthognathic Surgery
Bicortical screws have been widely used for mandibular osteosynthesis during orthognathic surgery.Transoral placement of bicortical screws is a rigid fixation method in orthognathic surgery, which is less often used.
- Conditions
- Prognathism, Retrognathia, Jaw Abnormalities
- Trial name
- NCT02658305
- Where
- Belgium
- Volunteers
- 509 people
- Sponsor
- AZ Sint-Jan AV
Maxillary Prognathism, Maxillary Retrusion
Custom Made Plate in Orthognathic Surgery
Orthognathic surgery has traditionally been used to correct dentofacial deformities. Conventional methods rely on 2D radiographic images, occlusal splints, and dental casts, but these approaches have limitations, such as errors…
- Trial name
- OGS (NCT06772688)
- Testing
- orthognathic surgery
- Where
- Egypt
- Volunteers
- 8 people
- Sponsor
- Faculty of Dental Medicine for Girls
Peri-operative Hemorrhage or Hematoma, Surgery
Preventive EXACYL® on Perioperative Bleeding During Orthognathism of Maxillary Surgery
Prospective, randomized, double-blind, placebo-controlled, mono center, Phase III trial to compare EXACYL in preventive with placebo on perioperatory bleeding in orthognathism surgery.
- Conditions
- Peri-operative Hemorrhage or Hematoma, Surgery, Retrognathism
- Trial name
- LEFORTEXACYL (NCT02702128)
- Testing
- Tranexamic Acid, saline solution
- Where
- France
- Volunteers
- 157 people
- Sponsor
- University Hospital, Lille
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
Skeletal Class II Malocclusion, Mandibular Retrognathia
Fixed Versus Conventional Twin Block Appliances for Skeletal Class II Malocclusion
This study compares two types of dental appliances a fixed Twin Block appliance and a conventional (removable) Twin Block appliance used to treat a bite problem called skeletal Class II malocclusion in growing children and…
- Trial name
- NCT07687927
- Testing
- Conventional Twin Block Appliance
- Where
- Egypt
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Al-Azhar University
Mandible Small
Augmentation of Atrophic Mandibule Using Poly Ether Ether Ketone Mesh
Comparative study between custom-made polyether ether ketone and titanium mesh for augmentation of atrophic posterior mandible.
- Trial name
- RCT (NCT04017117)
- Testing
- under local anasthesia,Ridge Augmention of posterior atrophic mandible by using mix of autogenous bone graft and bone substitutes is used under PEEK mesh
- Where
- Egypt
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Cairo University
Maxillary Hypoplasia
Orthodontic Retention on the Maxillary Stability After SARME Using Laser Scanner
The objective of this study was to evaluate the effect of the orthodontic retainer on transverse maxillary dental and skeletal stability after SARME.
- Trial name
- NCT01770782
- Testing
- Surgically Assisted Rapid Maxillary Expansion (SARME), Laser Scanner
- Where
- Brazil
- Volunteers
- 30 people
- Sponsor
- Max Domingues Pereira
Maxillary Deficiency, Maxillary Retrusion
Effects of Conventional Versus Skeletally Anchored Facemask in Treatment of the Prepubertal Skeletal Class III Patients
The aim of this study will be directed to the assessment of dentoskeletal effects concomitant with skeletally anchored maxillary protraction in orthodontic skeletal Class III patients.
- Trial name
- NCT05089396
- Testing
- Maxillary protraction
- Where
- Egypt
- Volunteers
- 14 people, healthy volunteers welcome
- Sponsor
- Al-Azhar University
Mandibular Deficiency
Mandibular Reconstruction With Axially Vascularised Bone Substitutes
Mandibular reconstruction is necessary following trauma, tumour resections and extensive infections resulting in severe defects of the mandibular arch.
- Trial name
- NCT04001842
- Testing
- Surgical reconstruction of the mandible using an axially vascularized bone construct
- Where
- Egypt
- Volunteers
- 10 people
- Sponsor
- University of Alexandria
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
Maxillary Deficiency
Comparative Results of Maxillary Deficiency Treatment by Fixed Tongue Appliance and Fixed Facemask in Growing Patients
A new fixed appliance will be used to transfer the tongue force during its physiological activity to advance the nasomaxillary complex; this method will be compared with the traditional method which uses a facemask with a fixed…
- Trial name
- NCT00916084
- Testing
- Fixed Tongue Appliance, Fixed Face Mask
- Where
- Iran
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Shahid Beheshti University
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
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 Hypoplasia, Malocclusion, Angle Class III
Effect of Bone-anchored Protraction on Maxillary Growth in the Young Child
Class III malocclusions may originate in a retrognathic maxilla, a prognathic mandible or both. Young patients with class III malocclusion and maxillary hypoplasia are conventionally treated with a protraction facemask in order…
- Trial name
- NCT02711111
- Testing
- Face mask, orthodontic bone anchor
- Where
- Belgium
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Ziekenhuis Oost-Limburg
Palatal Expansion Technique, Posterior Crossbite
Miniscrew-assisted Rapid Palatal Expansion With and Without Corticopuncture
Rapid palatal expansion aims at skeletally correcting the transverse maxillary deficiency by applying forces to separate the mid-palatal suture.
- Conditions
- Palatal Expansion Technique, Posterior Crossbite, Maxillary Hypoplasia, Malocclusion
- Trial name
- NCT05543460
- Testing
- MARPE with Corticopunctures, MARPE
- Where
- Egypt
- Volunteers
- 24 people
- Sponsor
- Alexandria University
Crossbite, Maxillary Hypoplasia
Pain and Discomfort During Maxillary Expansion
The aim of the present study is to investigate and analyze the perception of pain and function impairment during the first week of activation with two different palatal expansion screw to identify an effective pain prevention…
- Trial name
- NCT03757468
- Testing
- orthodontic - maxillary expansion
- Where
- 2 sites in Italy
- Volunteers
- 100 people
- Sponsor
- University of Genova
Malocclusion, Angle Class II, Retrognathism
The Effect of Functional Treatment of Patients With Backward Positioned Chins on the Jaw Joint and Movements
Patients with class II malocclusion and retrognathic mandibles will be treated using functional appliances and asses the remodeling that is expected to occur in the temporomandibular joint (TMJ) using cone-beam computed…
- Conditions
- Malocclusion, Angle Class II, Retrognathism, TMJ
- Trial name
- NCT03645343
- Testing
- Activator, Twin Block
- Where
- Syria
- Volunteers
- 66 people
- Sponsor
- Damascus University