Clinical trials: Retrognathia
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
Micrognathia of Lower Jaw, Retrognathism
Comparison Between Internal and External Distractors in Osteogenesis
Distraction osteogenesis is a powerful technique for creating new bone during significant lengthening of the mandible without the need for bone grafting and associated donor site morbidity.
- Conditions
- Micrognathia of Lower Jaw, Retrognathism, Facial Asymmetry
- Trial name
- NCT03540329
- Testing
- Internal Osteogenesis distractor, External Osteogenesis distractor
- Volunteers
- 30 people
- Sponsor
- Assiut 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 Deficiency
Associations Between Radiographic Inclination of Premolars and Maxillary Expansion
Recruitment of patients treated using rapid maxillary expanders with dental anchorage, with pre-treatment panoramic X-rays and post-treatment models.
- Trial name
- NCT07095374
- Testing
- Rapid palatal expansion
- Where
- Italy
- Volunteers
- 200 people
- Sponsor
- University of Pavia
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 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
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
Cleft Palate, Fistula of Soft Palate (Disorder)
LIMA Protocol Towards Palatal Fistula and Maxillary Growth in Cleft Palate
This randomized controlled trial compared palatoplasty outcomes using the LIMA protocol (Hybrid and one-flap techniques) versus the RSCM protocol (two-flap technique) in patients with unilateral Veau III-IV cleft palate at Cipto…
- Conditions
- Cleft Palate, Fistula of Soft Palate (Disorder), Maxillar Hypoplasia
- Trial name
- NCT07137169
- Testing
- LIMA protocol, RSCM Protocol
- Where
- Indonesia
- Volunteers
- 35 people
- Sponsor
- Universitas Indonesia
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
Palatal Expansion Technique, Cleft Lip and Palate
MARPE in Patients With Cleft Lip and Palate
The objective of this randomized controlled study will be to evaluate the dental and skeletal effects of maxillary protraction with a facemask, associated with MARPE and Class III elastics in patients with unilateral cleft lip…
- Conditions
- Palatal Expansion Technique, Cleft Lip and Palate, Class III Malocclusion, Skeletal Malocclusion
- Trial name
- NCT04354116
- Testing
- Rapid maxillary expansion, Maxillary Protraction
- Where
- Brazil
- Volunteers
- 44 people, healthy volunteers welcome
- Sponsor
- Pontifícia Universidade Católica de Minas Gerais
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
Class III Malocclusion, Hyoid Bone
The Effect of Orthopedic Face Mask Use on Head Posture and Pharyngeal Airway
The aim of this study was to evaluate the changes in head posture, position of the hyoid bone, pharyngeal airway and cervical posture after the use of Petit type face mask in patients with skeletal class III malocclusion (ANB…
- Trial name
- NCT05114642
- Testing
- Skeletal Class III Malocclusion Treatment with Face Mask Group
- Where
- Turkey (Türkiye)
- Volunteers
- 60 people
- Sponsor
- Taner OZTURK, DDS, MS
Maxillary Hypoplasia
Skeletal and Dental Changes with Hyrax-type Rapid Maxillary Expander Anchored to Permanent Versus Deciduous Molars
The aim of the study is to compare the skeletal and dental maxillary expansion obtained with an Hyrax tooth-borne expander anchored either on the 2nd deciduous molars (V) or on the 1st permanent molars (6)
- Trial name
- DENTHYRAX (NCT05773573)
- Testing
- Experimental group, Control group
- Where
- France
- Volunteers
- 34 people
- Sponsor
- University Hospital, Montpellier
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
Anterior Crossbite, Class III Malocclusion
Evaluation of the Treatment Effects of Tooth Borne Versus Bone-anchored Protraction Procedures in Class III Patients With Maxillary Deficiency
The aim of this prospective randomized controlled clinical study is to compare the effects of bone-anchored and tooth borne maxillary protraction on dentofacial structures in skeletal Class III patients.
- Conditions
- Anterior Crossbite, Class III Malocclusion, Maxillary Deficiency
- Trial name
- NCT04863404
- Testing
- Face mask with hybrid-hyrax, Face mask with conventional bonded RME
- Where
- Turkey (Türkiye)
- Volunteers
- 42 people, healthy volunteers welcome
- Sponsor
- Izmir Katip Celebi University
Maxillar Hypoplasia
Evaluation of Masticatory Muscle Activity in Pediatric Patients Undergoing Rapid Maxillary Expansion
Transverse maxillary constriction is a malocclusion that subsists when the distance between the upper first molars palatal cuspids is lower than the distance between the lower first molars vestibular center fossae.
- Trial name
- NCT05820438
- Testing
- Electromyography
- Where
- Italy
- Volunteers
- 34 people
- Sponsor
- University of Pavia
Class III Malocclusion in Growing Patients
Changes Following the Treatment of Lower Jaw Protrusion Using Two Appliances
An in vivo study evaluating the efficacy of the Tandem appliance in the treatment of maxillary deficiency in growing patients compared to the conventional facemask appliance treatment.
- Trial name
- NCT02144324
- Testing
- Tandem Appliance
- Where
- Syria
- Volunteers
- 30 people
- Sponsor
- Damascus University
Posterior Crossbite, Maxilla; Hypoplasia
Leaf Expander Versus Hyrax Expander in Mixed Dentition Patients With Posterior Crossbite.
Design: Two-arm parallel randomized clinical trial in mixed dentition (6-12 years). Arms: (1) 9 mm, 900 g leaf expander; (2) 9 mm Hyrax expander.
- Trial name
- NCT07301918
- Testing
- The Leaf expander, Hyrax expander
- Where
- Egypt
- Volunteers
- 30 people
- Sponsor
- Cairo University
Class III Malocclusion, Maxillary Deficiency
Evaluation of Pain and Functional Impairments When Treating Class III Malocclusion Using Two Treatment Procedures
A clinical examination of each recalled candidate patient will be carried out at Adib Al Lahham Centre at the Ministry of Health Damascus to ensure that he/she meets the inclusion criteria.
- Trial name
- NCT06877780
- Testing
- RMR with SME, BAIMT with RME
- Where
- Syria
- Volunteers
- 24 people, healthy volunteers welcome
- Sponsor
- Damascus University
Maxillary Deficiency, Cleft Lip and Palate
Evaluation of Maxillary Expansion Using Clear Aligners' Therapy in Patients With Cleft Lip and Palate at the Mixed Dentition Stage
The goal of this clinical trial is to learn if the aligners can expand upper dental arch in patients with cleft lip and palate at age of 6-8 years old to correct their collapsid archs.
- Trial name
- Pilot (NCT06994754)
- Testing
- clear aligners
- Where
- Egypt
- Volunteers
- 10 people
- Sponsor
- Cairo University