Associations Apnoea Hypopnoea Index (AHI) and Malocclusions in Growing Patients With Maxillary Constriction
Key facts
- Who runs it
- University of Pavia
- Where
- Pavia, ItalySee the site
- Trial code
- Status
- Enrolling by invitation
- People taking part
- 20 people, planned
- Started
- 1 Jul 2025
- Planned end
- Aug 2026
- Type of study
- Interventional
- Treatments tested
- Polysomnography
- Record updated
- 18 November 2025
Who can take part
- Age
- 6 years to 12 years
- Sex
- Women and men
- Healthy volunteers
- Cannot take part
The registry criteria, word for word
Show all 8 criteriaShow less
Who can take part
- mixed dentition
- transversal skeletal constriction of the upper jaw, with or without cross-bite
- Tonsillar grade I-III according to Mallampati classification
Who cannot take part
- Previous orthodontic treatment
- Previous adenoidectomy, tonsillectomy, or any surgical interventions of the upper airways
- Presence of syndromes or forms of disability
- Tonsillar grade IV
- Presence of remote or familial pathologies
Check if you might fit
Answer for yourself. This is not a decision: only the study team can say whether you can take part.
- Are you between 6 and 12 years old?
Where in Italy
- Unit of Orthodontics and Pediatric Dentistry - Section of Dentistry - Department of Clinical, Surgical, Diagnostic and Pediatrics - University of PaviaPavia, ItalyNo longer taking part
About the trial
What the trial wants to find out
The aim of this prospective clinical study is to evaluate the association between the Apnoea Hypopnoea Index (AHI) and the type of malocclusion in pediatric patients with maxillary constriction. Malocclusion will be assessed through clinical examination and cephalometric analysis, which will also include an evaluation of the airway. Additionally, the study aims to assess potential changes in OSAS symptoms in patients undergoing orthopedic-orthodontic treatment with maxillary expansion. The AHI assessment will be conducted using nocturnal cardiorespiratory monitoring.
The group in the trial
- Study groupTreatment being tested
Patients between 6 and 12 years with maxillary constriction (intermolar distance \< 31 mm) requiring rapid palatal expander therapy and with AHI \> 1
Treatment: Polysomnography
Questions to ask the study team
- How often do I need to come in, and for how long each time?
- Are travel costs paid?
- Can I keep my own doctor?
- What happens if I want to stop?
Contact the study team: see the registry record → Contacts and Locations
Print a page for my doctorData and sources
- Registry record
- Listed on ClinicalTrials.gov.
- Official title
- Associations Apnoea Hypopnoea Index (AHI) and Malocclusions in Growing Patients With Maxillary Constriction: a Prospective Clinical Study.
- Fit questions
- Built from NCT07009535, who can take part
- Record updated
- 18 November 2025