This study evaluates the dentoskeletal effects of the expander with differential opening in orthodontic patients in the mixed dentition. Half of participants will undergo rapid maxillary expansion (RME) using the expander with differential opening, while the other half will undergo RME using the conventional Hyrax expander.
Age range
7 Years – 11 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Maxillary and mandibular inter-first permanent molar distances
Timeframe: 6 months
Maxillary and mandibular inter-second deciduous molar distances
Timeframe: 6 months
Maxillary and mandibular inter-first deciduous molar distances
Timeframe: 6 months
Maxillary and mandibular inter-deciduous canine distances
Timeframe: 6 months
Maxillary and mandibular dental arches perimeters
Timeframe: 6 months
Maxillary and mandibular dental arches lengths
Timeframe: 6 months
Palatal depth
Timeframe: 6 months
Inclination of maxillary and mandibular first permanent molars
Timeframe: 6 months
Inclination of maxillary and mandibular deciduous canines
Timeframe: 6 months
Amount of interincisor diastema
Timeframe: 10 days