Clinical trials: Posterior Cross Bite
Malocclusion, Muscle Activity
Evaluation of Muscle Activity in Unilateral Posterior Crossbite
Posterior crossbite (PCB) is defined as the presence of one or more teeth of the posterior group (canine to third molar) in an inverted buccolingual relationship, where the vestibular cusp of the upper tooth is in contact with…
- Conditions
- Malocclusion, Muscle Activity, Maxillary Expansion
- Trial name
- NCT04962685
- Testing
- Rapid Maxillary Expansion
- Where
- Spain
- Volunteers
- 100 people
- Sponsor
- Universitat Internacional de Catalunya
Crossbite (Anterior) (Posterior), Dental Malocclusion
Evaluation of First Molar Inclinations and Transverse Arch Width in Individuals With Posterior Crossbite
This study aims to evaluate and compare the inclination of the lower and upper permanent first molars and the transversal width of the lower and upper jaws in individuals of different age groups to evaluate whether the existing…
- Conditions
- Crossbite (Anterior) (Posterior), Dental Malocclusion, Maxillary Anomaly
- Trial name
- NCT04955860
- Testing
- Dental model analysis
- Where
- Turkey (Türkiye)
- Volunteers
- 120 people
- Sponsor
- TC Erciyes University
Mandibular Asymmetry, Functional Shift of the Mandible
Quad Helix and Correction of Mandibular Asymmetry
To compare the effectiveness of the Quad Helix, an orthopaedic conventional appliance, in the correction of skeletal mandibular asymmetry, on frontal x-ray, in subjects treated before or after 7 years.
- Trial name
- NCT04429113
- Testing
- Maxillary expansion with conventional Quad Helix bonded on molars.
- Where
- France
- Volunteers
- 67 people
- Sponsor
- University Hospital, Montpellier
Posterior Crossbite
Maxillary and Mandibular Arch Response to RME: a Multicentric Randomized Controlled Trial
Posterior crossbite is a common clinical condition often associated with transverse maxillary deficiency and functional mandibular shift.
- Trial name
- 6vsE (NCT02798822)
- Testing
- Rapid maxillary expansion
- Where
- 3 sites in Italy
- Volunteers
- 88 people
- Sponsor
- University of Genova
Posterior Cross Bite
Cone Beam Computed Tomography for Evaluating Corticotomy-assisted Maxillary Expansion
Maxillary expansion was performed for adult female patients suffering from maxillary constriction with bilateral posterior cross-bite using fixed Quad-helix appliance, for about 8 months.
- Trial name
- NCT02574117
- Testing
- flap with corticotomy and bone allograft
- Where
- Egypt
- Volunteers
- 4 people, healthy volunteers welcome
- Sponsor
- Cairo University
Crossbite, Malocclusion
Rapid Maxillary Expansion with Low Level Laser Therapy
The posterior crossbite is a common type of malocclusion that might affect the normal growth pattern. Early treatment is recommended by rapid maxillary expansion with different appliances.
- Conditions
- Crossbite, Malocclusion, Cross Bite, Maxillary Constriction
- Trial name
- NCT05586997
- Testing
- Bonded-Hyrax, Bonded Rapid Maxillary Expansion and low-Level Laser therapy
- Where
- Egypt
- Volunteers
- 60 people
- Sponsor
- National Research Centre, Egypt
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
Maxillary Transverse Deficiency (Posterior Crossbite) in Early Adolescent Patients
Posterior Resin Bite Turbos Effect on Maxillary Expansion Using a HYRAX Expander in Early Adolescents
This randomized controlled clinical trial aims to evaluate the effect of posterior disarticulatory resin bite turbos on the rate of maxillary expansion using a HYRAX expander in early adolescent patients.
- Trial name
- HYRAX_ RME_SME (NCT07739498)
- Testing
- Intervention 1: HYRAX expander with posterior disarticulatory resin bite turbos, Intervention 2 (Control): HYRAX expander alone
- Where
- Egypt
- Volunteers
- 22 people
- Sponsor
- Mansoura University
Posterior Crossbite, Upper Airway
Evaluation of the Effect of Different Rapid Maxillary Expansion Appliances on Airway by Acoustic Rhinometry
Rapid maxillary expansion (RME) is an orthodontic treatment based on the principle of opening the midpalatal suture with the effect of orthopedic forces.
- Trial name
- NCT04529057
- Testing
- Rapid Maxillary Expansion Treatment
- Volunteers
- 46 people
- Sponsor
- Izmir Katip Celebi University
Malocclusion, Maxillary Expansion
Treatment of Unilateral Posterior Cross Bite in Children
Rapid maxillary expansion and quad-helix are two well established appliances in dentistry used for posterior cross bite treatment.
- Conditions
- Malocclusion, Maxillary Expansion, Pain Children
- Trial name
- NCT04458506
- Testing
- Maxillary expansion
- Where
- Sweden
- Volunteers
- 72 people, healthy volunteers welcome
- Sponsor
- Region Örebro County
Maxillary Constriction, Unilateral Posterior Crossbite
Analysis of the Dentoskeletal Effects of the Expander With Differential Opening
This study evaluates the dentoskeletal effects of the expander with differential opening in orthodontic patients in the mixed dentition.
- Conditions
- Maxillary Constriction, Unilateral Posterior Crossbite, Bilateral Posterior Crossbite, Mandibular Dental Arch Constriction
- Trial name
- NCT02810353
- Testing
- Differential rapid maxillary expansion, Conventional rapid maxillary expansion
- Where
- Brazil
- Volunteers
- 50 people
- Sponsor
- University of Sao Paulo
Transverse Maxillary Deficiency, Posterior Crossbite, Upper Airway
Immediate Skeletal and Dento-alveolar Effects of Two and Four Mini-screw Supported Hyrax for Maxillary Expansion in Non-growing Patients
transverse malocclusion is very common in adult ,using conventional hyrax expander has many limitations and side effects, therefore ,recently A minis crews assisted rapid expansion is recently introduced to overcome hence…
- Trial name
- RCT (NCT06851728)
- Testing
- MARPE
- Where
- Egypt
- Volunteers
- 20 people
- Sponsor
- Cairo University
Malocclusion, Angle Class III, Crossbite (Anterior) (Posterior)
Comparison of Two Miniscrew Anchored Maxillary Protraction Protocols
This study evaluates the dentoskeletal effects produced by two maxillary protraction protocols in adolescent patients. Half of participants will be treated with a tooth-borne and tooth-bone-borne expanders as anchorage in the…
- Trial name
- NCT03712007
- Testing
- MAMP therapy with MARPE expander, MAMP therapy with Hyrax expander
- Where
- Brazil
- Volunteers
- 35 people
- Sponsor
- University of Sao Paulo
Posterior Crossbite
Tooth-Borne Versus Tooth-Bone-Borne Rapid Maxillary Expanders: A Stereophotogrammetric Evaluation of Soft Tissues
The force exerted by the rapid maxillary expansion (RME) appliances provides expansion of the transverse dimension by splitting of the midpalatal suture.
- Trial name
- NCT04828213
- Testing
- Rapid Maxillary Expansion Treatment with Tooth-borne RME appliance (Hyrax), Rapid Maxillary Expansion Treatment with Hybrid hyrax RME appliance
- Volunteers
- 32 people
- Sponsor
- Gökçenur Gökçe
Posterior Crossbite
Effectiveness of Rapid and Slow Maxillary Expansion in Treating Posterior Crossbite
This study will evaluate the efficacy of rapid maxillary expansion (RME) and slow maxillary expansion (SME) in treating posterior crossbite using cone beam computed tomography.
- Trial name
- NCT03667508
- Testing
- Rapid Maxillary Expanding Device, Slow Maxillary Expanding Device
- Where
- Syria
- Volunteers
- 34 people
- Sponsor
- Damascus University
Crossbite (Posterior), Expansion of Maxillary Arch
Comparison of Maxillary Dental Expansion Using Smartee Clear Aligner With and Without S11 Expander: A Randomized Clinical Trial
To compare the effects of Smartee S11 expander with conventional clear aligner expansion using cone beam computed tomography (CBCT).
- Conditions
- Crossbite (Posterior), Expansion of Maxillary Arch, Clear Aligner Appliance
- Trial name
- RCT expansion (NCT07533682)
- Testing
- maxillary expander with transpalatal strap S11, conventional expantion
- Where
- Saudi Arabia
- Volunteers
- 30 people
- Sponsor
- Aisha Ali Qahtani
Maxillary Transverse Deficiency, Rapid Maxillary Expansion
Evaluation of Occlusal Force Following Rapid Maxillary Expansion Assisted by Piezocision in Different Age Groups
The aim of this prospective clinical study is to evaluate and compare the changes in occlusal force distribution using a quantitative digital occlusal analysis system following piezocision-assisted rapid maxillary expansion (RME)…
- Conditions
- Maxillary Transverse Deficiency, Rapid Maxillary Expansion, Posterior Crossbite
- Trial name
- NCT07810465
- Testing
- Piezocision-Assisted Rapid Maxillary Expansion, T-Scan Quantitative Digital Occlusal Force Analysis
- Where
- Egypt
- Volunteers
- 16 people
- Sponsor
- Al-Azhar University
Maxillary Anomaly, Asymmetric Maxillary Arch (Disorder)
Effects of Asymmetric Rapid Maxillary Expansion on Dentoskeletal Structures in Mixed Dentition
The aim of this clinical trial was to determine the efficacy of a locked modified bonded acrylic rapid maxillary expansion appliance, also known as an asymmetric rapid maxillary expansion appliance (ARME), in patients with a true…
- Conditions
- Maxillary Anomaly, Asymmetric Maxillary Arch (Disorder), Cross Bite
- Trial name
- ARME (NCT06486324)
- Testing
- A locked modified acrylic bonded rapid maxillary expansion appliance (ARME)
- Volunteers
- 30 people, healthy volunteers welcome
- Sponsor
- Celal Irgin
Transverse Maxillary Deficiency
Six Months Follow-up of Two and Four Mini Screws Supported Hyrax in Adults
six months follow-up of two and four mini-screw supported hyrax for maxillary expansion in non-growing patients: A randomized controlled clinical trial
- Trial name
- NCT06851624
- Testing
- MARPE
- Where
- Egypt
- Volunteers
- 20 people
- Sponsor
- Cairo University
Maxillary Constriction
Pain, Discomfort, and Functional Impairments During Rapid and Slow Maxillary Expansion
This study will assess and compare the levels of pain, discomfort, and functional impairments between rapid and slow maxillary expansion in treating skeletal maxillary constriction in the early adolescence period (i.e.
- Trial name
- NCT04734054
- Testing
- Modified Hyrax Palatal Expander, Removable Palatal Expander
- Where
- Syria
- Volunteers
- 32 people
- Sponsor
- Damascus University