Clinical trials: Retrognathism
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
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
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
Cleft Lip and Palate, Maxillary Hypoplasia
Cleft Orthognathic Surgery Versus Distraction Osteogenesis - Which is Better?
Cleft lip and palate patients normally present with a sunken face due to collapse in the middle part of the face and inability of the upper and lower teeth to meet during chewing.
- Trial name
- NCT00930124
- Testing
- Orthognathic surgery, Distraction osteogenesis
- Where
- Hong Kong
- Volunteers
- 60 people, healthy volunteers welcome
- Sponsor
- The University of Hong Kong
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 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
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
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
Implant Site Reaction, Maxillary Deficiency
Radiographic Assessment of Bone Gain Following Sinus Lifting With Simultaneous Implant Placement Using Crestal Approach With Membrane Control Technique for Bone Augmentation of Atrophied Maxillary Posterior Ridge
This study aims to evaluate the quantity and quality of the native and the newly bone around dental implants that's simultaneously installed with sinus lifting
- Trial name
- NCT06446687
- Testing
- Dental implant with sinus lifting.
- Volunteers
- 10 people, healthy volunteers welcome
- Sponsor
- Cairo 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
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
Prognathism, Retrognathism
Natural History of Craniofacial Anomalies and Developmental Growth Variants
Background: Some head and facial abnormalities are rare and present at birth. Others are more common, and may not show up until puberty. These conditions have different causes and characteristics.
- Conditions
- Prognathism, Retrognathism, Dentofacial Deformities
- Trial name
- NCT02639312
- Where
- United States
- Volunteers
- 2,400 people, healthy volunteers welcome
- Sponsor
- National Institute of Dental and Craniofacial Research (NIDCR)
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
Maxillary Segment Tipping During Transpalatal Distraction
The investigator proposes a multi-centre study to investigate tipping of teeth, bringing into consideration the height of the osteotomy line and the height and placement of the transpalatal distractor as possible factors.
- Trial name
- NCT04041388
- Testing
- Conebeam CT
- Where
- Belgium
- Volunteers
- 200 people
- Sponsor
- Universitair Ziekenhuis Brussel
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
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
Surgical Complication, Paresthesia
Trial of Bilateral Sagittal Split Osteotomy Induced Paresthesia Using Ultrasonic vs. Reciprocating Saw Instrumentation
The aim of this prospective study is to analyze the postoperative paresthesias experienced in patients who undergo bilateral sagittal split osteotomies (BSSO) using an ultrasonic saw, versus a reciprocating saw.
- Conditions
- Surgical Complication, Paresthesia, Fracture, Nerve Injury
- Trial name
- NCT05205616
- Testing
- Sonopet ultrasonic saw, Reciprocating saw
- Where
- 2 sites in United States
- Volunteers
- 32 people, healthy volunteers welcome
- Sponsor
- University of California, San Francisco
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
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
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