Clinical trials: Posterior Crossbite
Posterior Cross Bite
Evaluation of Modified Hyrax Versus Quad Helix in Treatment of Posterior Cross Bite
This study will be performed to evaluate the treatment of posterior cross-bite with modified hyrax \& Quad helix appliances and to compare which one will provide better results in relation to chewing difficulty in children with…
- Trial name
- NCT06300775
- Testing
- modified hyrax, quad helix
- Where
- Egypt
- Volunteers
- 10 people
- Sponsor
- Cairo 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 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
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
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, 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
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
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
Posterior Crossbite
Evaluation of Rapid Maxillary Expansion Facilitated by Micro-osteoperforation in Adolescent Patients With Skeletal Maxillary Constriction
The aim of this study is to evaluate and compare the effect of rapid maxillary expansion with and without microosteoperforation in patients with skeletal maxillary constriction.Theoretically, the force generated by the activation…
- Trial name
- NCT03772379
- Testing
- tooth borne hyrax expander, microosteoperforation
- Volunteers
- 34 people, healthy volunteers welcome
- Sponsor
- Cairo University
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
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
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
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
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
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
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
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
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
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