Crossbite TeethNCT07561606
Correlation Between Posterior Crossbite and Risk of Obstructive Sleep Apnea
An observational study of Crossbite Teeth, run by October University for Modern Sciences and Arts.
Trial summary
Correlation Between Posterior Crossbite and Risk of Obstructive Sleep Apnea Read more about this study
- Who is it for?
- Ages 6 to 12 years
- Conditions the study is for
- Crossbite Teeth
- What is being tested?
- Comparator and Interventions
- How many people
- 420 participants
- Where
- No sites listed yet
- Study dates
- Apr 2026to Jun 2026
- Phase
- Observational
- Are there results?
- Not yet: the study is under way
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 6 to 12 years
- All sexes
- Child
Study population: Children with posterior crossbite Patients without posterior crossbite, or Normative OSA-18 scores / low-risk groups
Who may be able to join
- Children in mixed dentition stage aged 6-12 years
- Presence of posterior crossbite
Who cannot join
- Syndromic patients
- Previous orthodontic treatment
- Chronic respiratory or neurological disorders Matching criteria and allocation ratio
Trial locations and contacts
No sites are listed yet. Contact the study team or a site near you to ask about taking part.
About this study
Official title: Correlation Between Posterior Crossbite and Risk of Obstructive Sleep Apnea: A Questionnaire-Based Analysis
Correlation Between Posterior Crossbite and Risk of Obstructive Sleep Apnea
Read the detailed description
Understanding the correlation between posterior crossbite and OSA risk is essential for early detection and prevention. Pediatric dentists and orthodontists are uniquely positioned to identify craniofacial risk factors and initiate early intervention.
Screening tools such as OSA-18 can help identify children at risk and facilitate timely referral for multidisciplinary management. Furthermore, evaluating this association will contribute to improving clinical decision-making and patient outcomes.
Aim of study:
To assess the correlation between posterior crossbite and the risk of obstructive sleep apnea in children using the OSA-18 questionnaire.
- Conditions
- Crossbite Teeth
- Being tested
- Comparator, Interventions
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ComparatorOther
Patients without posterior crossbite, or Normative OSA-18 scores / low-risk groups
InterventionsOther
Screening using the OSA-18 (Obstructive Sleep Apnea-18) questionnaire
| Study group | Role | What they receive |
|---|---|---|
| intervention | Screening using the OSA-18 (Obstructive Sleep Apnea-18) questionnaire Receives: Other: Interventions | |
| comparator | Patients without posterior crossbite, or Normative OSA-18 scores / low-risk groups Receives: Other: Comparator |
What is being measured
The primary outcome is the main question the study is designed to answer.
Risk or presence of obstructive sleep apnea (OSA) based on OSA-18 scores
questionnaire
Measured: 2 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted1 May 2026
- Study startApr 2026 (estimated)
- Primary completionJun 2026 (estimated)
- Study completionJun 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Crossbite TeethStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Other
- Time perspective
- Retrospective
- Enrolment
- 420 participants (estimated)
Sponsor and investigators
- Lead sponsor
- October University for Modern Sciences and Arts
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Marwa Ahmed Salmoon, October University for Modern Sciences and Arts
- Investigators
- Sally M Mosallam, Master Degree, Study director, MSA UniversityAhmed Ayman, Principal investigator, MSA UniversityMohamed Hesham, Principal investigator, MSA University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07561606
- Sponsor's protocol ID
- 4-2026
- Status last verified
- Apr 2026
- First submitted
- 25 Apr 2026
- Last updated
- 1 May 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No
Study at a glance
From the registry record, last updated by the sponsor on 1 May 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Correlation Between Posterior Crossbite and Risk of Obstructive Sleep Apnea: A Questionnaire-Based Analysis
- ClinicalTrials.gov ID
- NCT07561606
- Acronym / sponsor ID
- 4-2026
- Conditions
- Crossbite Teeth
- Study type
- Observational
- Recruitment status
- Not yet recruiting
- Enrolment
- 420 participants (estimated)
- Lead sponsor
- October University for Modern Sciences and ArtsUniversity, hospital or other
- Study start
- Apr 2026 (estimated)
- Primary completion
- Jun 2026 (estimated)
- Study completion
- Jun 2026 (estimated)
- First posted
- 1 May 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Correlation Between Posterior Crossbite and Risk of Obstructive Sleep Apnea
Detailed description
Understanding the correlation between posterior crossbite and OSA risk is essential for early detection and prevention. Pediatric dentists and orthodontists are uniquely positioned to identify craniofacial risk factors and initiate early intervention.
Screening tools such as OSA-18 can help identify children at risk and facilitate timely referral for multidisciplinary management. Furthermore, evaluating this association will contribute to improving clinical decision-making and patient outcomes.
Aim of study:
To assess the correlation between posterior crossbite and the risk of obstructive sleep apnea in children using the OSA-18 questionnaire.
Study design
- Observational model
- Other
- Time perspective
- Retrospective
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| intervention | – | Other: InterventionsScreening using the OSA-18 (Obstructive Sleep Apnea-18) questionnaire |
| comparator | – | Other: ComparatorPatients without posterior crossbite, or Normative OSA-18 scores / low-risk groups |
Who may qualify
- Ages
- 6 to 12 years
- Sex
- All
- Age groups
- Child
- Study population
- Children with posterior crossbite Patients without posterior crossbite, or Normative OSA-18 scores / low-risk groups
Key inclusion criteria (2 listed)
- Children in mixed dentition stage aged 6-12 years
- Presence of posterior crossbite
Key exclusion criteria (3 listed)
- Syndromic patients
- Previous orthodontic treatment
- Chronic respiratory or neurological disorders Matching criteria and allocation ratio
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| ComparatorPatients without posterior crossbite, or Normative OSA-18 scores / low-risk groups | Other | comparator |
| InterventionsScreening using the OSA-18 (Obstructive Sleep Apnea-18) questionnaire | Other | intervention |
Primary outcome
Risk or presence of obstructive sleep apnea (OSA) based on OSA-18 scores
Time frame: 2 months
questionnaire
Results and safety
This study is still under way. Results are not available in the source record yet.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 1 May 2026.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part.
Sally M Mosallam, Master Degree study director
MSA University
Ahmed Ayman principal investigator
MSA University
Mohamed Hesham principal investigator
MSA University
Questions about this trial
What is this clinical trial studying?
An observational study of Crossbite Teeth, run by October University for Modern Sciences and Arts.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 2 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: opening soon, as of the sponsor's last update on 1 May 2026. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
This study is still under way. Results are not available in the source record yet.
How can a doctor refer a patient or contact the research team?
Contact Marwa A. Salmoon, Ph.D (01016555055, maasalmoon@msa.edu.eg), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Risk or presence of obstructive sleep apnea (OSA) based on OSA-18 scores (time frame: 2 months). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 1 May 2026.