Clinical trials: Posterior Crossbite
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
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
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
Malocclusion, Posterior Crossbite
Comparison of Two Tooth-borne Expanders in Rapid Maxillary Expansion
This study will assess the dentoalveolar effects and impact on quality of life of two types of maxillary expanders in orthodontic patients with permanent dentition, from 12 to 16 years old.
- Trial name
- NCT03846518
- Testing
- Hyrax, mini Hyrax
- Where
- Brazil
- Volunteers
- 34 people
- Sponsor
- Pontifícia Universidade Católica de Minas Gerais
Crossbite Teeth
Correlation Between Posterior Crossbite and Risk of Obstructive Sleep Apnea
Correlation Between Posterior Crossbite and Risk of Obstructive Sleep Apnea
- Trial name
- NCT07561606
- Testing
- Comparator, Interventions
- Volunteers
- 420 people
- Sponsor
- October University for Modern Sciences and Arts
Cross-bite, Malocclusion in Children
3D Analysis of Palatal Morphology of Growing Patients Treated With Rapid Palatal Expander.
The aim of the present study is to assess the changes of palatal morphology among growing patients with different vertical facial growth patterns treated with rapid palatal expander.
- Trial name
- 3D_MoPal (NCT06522607)
- Testing
- rapid palatal expander
- Where
- Italy
- Volunteers
- 36 people
- Sponsor
- Fondazione Policlinico Universitario Agostino Gemelli IRCCS
Cross Bite
Evaluation of Myobrace for Crossbite Correction in Mixed Dentition
This randomized controlled clinical trial will evaluate the effectiveness of the Myobrace appliance in correcting anterior and posterior crossbite in children aged 6 to 10 years during the mixed dentition stage.
- Trial name
- Myo vs Frankel (NCT07840053)
- Testing
- Myobrace Interceptive Class III Appliance, Frankel III Functional Regulator
- Where
- Yemen
- Volunteers
- 40 people
- Sponsor
- Sana'a 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, 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
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
Malocclusion, Crossbite (Posterior)
Dentoskeletal Effects of the Expander With Differential Opening and the Fan-type Expander
This study will assess the dentoskeletal effects of two types of maxillary expanders in orthodontic patients in the mixed dentition, from 7 to 11 years old.
- Trial name
- NCT03705871
- Testing
- Differential Expansion, Fan-Fype Expander
- Where
- Brazil
- Volunteers
- 48 people
- Sponsor
- University of Sao Paulo
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
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
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
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
Posterior Crossbite, Maxillary Expansion
Quad Helix vs RME for Posterior Cross-bite in Egyptian Children
This randomized clinical trial aims to evaluate and compare the effectiveness of the Quad Helix (QH) appliance versus Rapid Maxillary Expanders (RME) in treating posterior cross-bite in Egyptian children during the mixed…
- Conditions
- Posterior Crossbite, Maxillary Expansion, Transverse Maxillary Deficiency
- Trial name
- Expansion (NCT07500194)
- Testing
- Quad Helix(QH) Appliance, Rapid Maxillary Expanders
- Where
- Egypt
- Volunteers
- 20 people
- Sponsor
- Al-Azhar University
Palatal Expansion Technique, Malocclusion
Comparison Between Two Rates of Activation of Miniscrew-Supported Upper Jaw Expander in Adolescents
Miniscrew-supported maxillary expanders provide advantages over conventional tooth-supported expanders. However, there is no consensus in the literature regarding their activation protocol.
- Conditions
- Palatal Expansion Technique, Malocclusion, Posterior Crossbite, Maxillary Hypoplasia
- Trial name
- NCT04225637
- Testing
- Miniscrew-Supported Maxillary Expander- Slow activation, Miniscrew-Supported Maxillary Expander- Rapid activation
- Where
- Egypt
- Volunteers
- 30 people
- Sponsor
- Alexandria University
Posterior Crossbite
Effects of Skeletally Anchored Maxillary Expander Via Two Approaches of Microosteoperforations
study will be directed to evaluate two approaches of microosteoperforations during skeletally anchored maxillary expansion
- Trial name
- NCT05433038
- Testing
- skeletally anchored maxillary expander
- Where
- Egypt
- Volunteers
- 20 people
- Sponsor
- Al-Azhar University
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