Clinical trials: Orthognathic Surgical Procedures, open to volunteers
Dentofacial Deformities
Patient-Specific vs. Conventional Positioning in Sagittal Split Ramus Osteotomy
This study aims to evaluate the clinical efficacy and positioning accuracy of a custom-made proximal segment positioning appliance designed for use in sagittal split ramus osteotomy (SSRO).
- Trial name
- NCT07125963
- Testing
- Custom-made positioning appliance-assisted mandibular segment repositioning, Conventional Manual Positioning
- Where
- Turkey (Türkiye)
- Volunteers
- 30 people
- Sponsor
- Sümer Münevveroğlu
Sleep Apnea, Obstructive
Maxillomandibular Advancement Surgery for Treatment of Obstructive Sleep Apnoea Syndrome
This study looks at how jaw surgery called maxillomandibular advancement with counterclockwise rotation affects breathing during sleep in people with moderate to severe obstructive sleep apnea who cannot tolerate standard…
- Trial name
- OSAS (NCT07446634)
- Testing
- Maxillomandibular advancement surgery with counterclockwise rotation
- Where
- Sweden
- Volunteers
- 48 people
- Sponsor
- Jani Talvilahti
Facial Asymmetry
Assessment of the Accuracy of Patient Specific Plates for Correction of Maxillary Cant in Facial Asymmetry
The goal of this clinical trial is to learn how accurate patient-specific plates (PSPs) are for correcting a tilted upper jaw (maxillary cant) in people with facial asymmetry.
- Trial name
- NCT07001826
- Testing
- Virtual Surgical Planning (VSP) with Patient-Specific Plates (PSPs)
- Where
- Egypt
- Volunteers
- 8 people
- Sponsor
- Cairo University
Sleep Apnea Syndrome (OSAS), Orthognathic Surgical Procedures
Splintless Versus Conventional Maxillomandibular Advancement Surgery for Obstructive Sleep Apnea
The goal of this clinical trial is to find out whether using a splintless surgical approach improves the accuracy of maxillomandibular advancement (MMA) surgery for treating obstructive sleep apnea (OSA) in adults.
- Conditions
- Sleep Apnea Syndrome (OSAS), Orthognathic Surgical Procedures, Sleep Apnea - Obstructive
- Trial name
- SvCMAS (NCT07598461)
- Testing
- Splintless MMA surgery, Splint MMA surgery
- Where
- Netherlands
- Volunteers
- 66 people
- Sponsor
- Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
Skeletal Deformities, Orthognathic Surgical Procedures
Impact of 3D-Printed Anatomical Model on Patient Understanding in Orthognathic Surgery
The goal of this clinical trial is to learn whether using three dimensional (3D)-printed anatomical models improves the informed consent process for participants undergoing orthognathic surgery.
- Conditions
- Skeletal Deformities, Orthognathic Surgical Procedures, Anxiety, Patient Education
- Trial name
- NCT07068412
- Testing
- 3D-printed Orthognathic Surgical Simulation, 2D Visual Representations of Skeletal Movements in Orthognathic Surgery
- Where
- 2 sites in Saudi Arabia
- Volunteers
- 60 people
- Sponsor
- King Abdulaziz University
Orthognathic Surgical Procedures, Piezoelectric Technique
Piezosurgery Versus Conventional Techniques in Orthognathic Surgery
The goal of this randomized double-blinded controlled clinical trial is to determine whether piezosurgery can reduce complications and improve outcomes compared to conventional osteotomy techniques in patients undergoing…
- Trial name
- NCT07174193
- Testing
- Piezosurgery, Conventional techniques
- Where
- 2 sites in Netherlands
- Volunteers
- 70 people, healthy volunteers welcome
- Sponsor
- Erasmus Medical Center
CAD-CAM, Patients Specific Manufacturing
Analysis of Mandibular Proximal Segment Position Using Virtual Orthognathic Surgical Planning, Individualized Guides, and Osteosynthesis Plates
Orthognathic surgery is a surgical procedure performed to correct dentofacial deformities. In recent years, with the use of virtual surgical planning, cutting guides, and patient-specific osteosynthesis plates, highly predictable…
- Conditions
- CAD-CAM, Patients Specific Manufacturing, Osteotomy, Sagittal Split Ramus
- Trial name
- NCT06442787
- Testing
- conventional splints, cutting guides and positioning guides, cutting guides and fixation plates
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- Bezmialem Vakif University
Sleep Apnea Syndrome (OSAS), Central Sleep Apnea
Natural History of Central and Mixed Sleep Apneas Followed by Maxillomandibular Advancement for Obstructive Sleep Apnea
The goal of this observational prospective cohort study is to learn about the natural course of central and mixed sleep apneas that develop after maxillomandibular advancement (MMA) surgery for obstructive sleep apnea (OSA) in…
- Conditions
- Sleep Apnea Syndrome (OSAS), Central Sleep Apnea, Maxillomandibular Advancement Surgery, Orthognathic Surgical Procedures
- Trial name
- CMAI (NCT07596719)
- Where
- Netherlands
- Volunteers
- 60 people
- Sponsor
- Academisch Medisch Centrum - Universiteit van Amsterdam (AMC-UvA)
Orthognathic Surgical Procedures
Biodegradable Magnesium Bone Plate and Screw Fixation in Jaw Surgery
The purpose of this study is to evaluate the efficacy and safety of using high-purity magnesium bone plates and screws for internal fixation in jaw surgery.
- Trial name
- MgJawSurgery (NCT06536660)
- Testing
- Magnesium bone plate and screw fixation in jaw surgery
- Volunteers
- 62 people
- Sponsor
- The University of Hong Kong
Malocclusion, Angle Class III
Evaluation of Surgical Outcomes of Patients Treated With the Surgery First Approach and Aligners
The purpose of this prospective study is to compare treatment outcomes and the quality of life of skeletal Class III patients treated with conventional fixed appliances and aligners undergoing Surgery-first approach.
- Trial name
- NCT05822271
- Testing
- Orthognathic Surgery
- Where
- Brazil
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Rio de Janeiro State University
Malocclusion, Angle Class II, Malocclusion, Angle Class III
Comparing 3D-Printed and Milled Titanium Plates in Jaw Surgery (Le Fort I): Accuracy and Operative Time
The purpose of this study is to find out if 3D printed patient-specific titanium plates improve surgical accuracy and decrease operative time compared to milled patient-specific titanium plates in patients having Le Fort I…
- Conditions
- Malocclusion, Angle Class II, Malocclusion, Angle Class III, Dentofacial Deformities, Osteotomy, Le Fort I
- Trial name
- TiPlateRCT (NCT07841067)
- Testing
- 3D-Printed Patient-Specific Titanium Plates, Milled Patient-Specific Titanium Plates
- Where
- Egypt
- Volunteers
- 12 people
- Sponsor
- Future University in Egypt
Orthognathic Surgical Site Infection
Antibiotics for Prevention of Infection Following Orthognathic Surgery
Orthognathic surgery describes a group of procedures aimed at correcting developmental or acquired deformities of the jaws and facial skeleton.
- Trial name
- NCT05852158
- Testing
- Cefazolin 2 GM Injection, Cefazolin Injection
- Where
- Canada
- Volunteers
- 400 people
- Sponsor
- Abdul El-Rabbany
Orthognathic Surgical Procedures
Mandibular Medial Osteotomy Modifications and Postoperative Stability
This study aims to compare the effects of the Hunsuck and Posnick modifications of medial mandibular osteotomy on postoperative skeletal stability and relapse in patients undergoing orthognathic surgery.
- Trial name
- NCT07788976
- Testing
- sagittal split osteotomy, Hunsuck Modification of Medial Mandibular Osteotomy, Posnick Modification Group
- Where
- Turkey (Türkiye)
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Bezmialem Vakif University
Orthognathic Surgical Procedures, Patient Specific Implant
Maxillary Positioning in Orthognathic Surgery
Patient that need corrective Jaw Surgery went into Maxillary Positioning in one of two groups either Maxilla Fixed using occlusal waver or PSI
- Trial name
- NCT07671794
- Testing
- Maxillary Orthognathic Surgery
- Where
- Egypt
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Future University in Egypt
Orthognathic Surgical Procedures
Effect of Proximal Segment Positioning on Condylar Remodeling
This study aims to evaluate postoperative condylar remodeling in patients undergoing bimaxillary orthognathic surgery by comparing two different proximal segment positioning techniques used during mandibular osteotomy.
- Trial name
- NCT07758725
- Testing
- Proximal Segment Rotation, Inferior Border Osteotomy Without Proximal Segment Rotation
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Bezmialem Vakif University
Dentofacial Deformities, Dentofacial Anomalies [Including Malocclusion] and Other Disorders of Jaw (M26-M27)
Effect of Proximal Segment Positioning on Postoperative Condylar Remodeling in Bimaxillary Orthognathic Surgery
Bimaxillary orthognathic surgery is a surgical procedure that involves simultaneous corrections to both the maxilla (upper jaw) and mandible (lower jaw).
- Trial name
- NCT06897787
- Testing
- manuel positioning group, mandibular basis osteotomy
- Where
- Turkey (Türkiye)
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Bezmialem Vakif University
Maxillary Hypoplasia, Cleft Lip Palate
Time and Type Dependent Evaluation of Different Techniques for Correction of Cleft Maxillary Hypoplasia
Maxillary hypoplasia in CLP deformities results from congenital reduction in midfacial growth and the effects of the surgical scar from CLP repair.Turvey et al.
- Conditions
- Maxillary Hypoplasia, Cleft Lip Palate, Orthognathic Surgery
- Trial name
- NCT06852196
- Testing
- orthognathic surgery ,lefort 1,bsso ,DO, distraction osteogenesis
- Volunteers
- 22 people
- Sponsor
- Assiut University
Orthognathic Surgery
Accuracy of Maxillary Two Customized 3D Titanium Miniplates Versus Four Customized 3D Miniplates
In this research the investigators aim to minimize the use of more hardware in the fixation of the orthognathic surgery cases. The objective of this study is to assess the accuracy of the plan transfer with two customized…
- Trial name
- NCT07418684
- Testing
- two customized titanium plates, four customized titanium plates
- Where
- 2 sites in Egypt
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Cairo University
Orthognathic Surgical Procedures, Psychiatric Disorders
Incidence of Body Dysmorphic Disorder (BDD) in a Population of Patients Undergoing Orthognathic Surgery
Assessment of the incidence of Body dismorphic disorder in a population candidated to orthognathic surgery
- Conditions
- Orthognathic Surgical Procedures, Psychiatric Disorders, Prognathism
- Trial name
- IBDOS (NCT06879275)
- Testing
- Questionnaire and Physical Exam
- Where
- Italy
- Volunteers
- 90 people
- Sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Orthognathic Surgical Procedures
Facial Conformation Meshes for Orthognathic Surgery
This study is a retrospective analysis that evaluates the accuracy of 3D soft tissue simulation in bimaxillary orthognathic surgery for Class III dentofacial deformities.
- Trial name
- FEU (NCT06893614)
- Where
- 2 sites in Egypt
- Volunteers
- 13 people
- Sponsor
- Ain Shams University