Cross BiteNCT05193513
Tow Maxillary Hybrid Expanders Screw Supported Versus Lateral Angulated One; a Prospective Randomized Clinical Study
A study testing hybrid expanders in people with Cross Bite, run by Al-Azhar University at 1 site in Egypt.
Trial summary
in this study i will use to different designs of t maxillary hybrid expanders that consists of HYREX supported with tow miniscrews to treat the collapsed maxilla in Yonge adolescents Read more about this study
- Who is it for?
- Ages 12 to 18 yearsHealthy volunteers can take part
- Conditions the study is for
- Cross Bite
- What is being tested?
- hybrid expanders
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 20 participants
- Where
- 1 siteEgypt
- Study dates
- 10 Jul 2021to 14 Oct 2023
- Phase
- Interventional
- Are there results?
- None posted in the registry
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 12 to 18 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Who may be able to join
- Medically free male or female patients
- Patients that necessitated maxillary expansion due to constricted maxillary arch shown by a unilateral or bilateral posterior crossbite.
- The patient should have no missing teeth except third molars.
- Age ranged from 12 to 18 years old.
- The patient should have a good gingival condition.
- The patient should have a good periodontal condition.
Who cannot join
- 1-hisory of previous orthodontic treatment. 2- Lack of cooperation. 3- Mental problems. 4- Skeletal open bite. 5- TMJ problem.
- -
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Comparison of Tow Maxillary Hybrid Expanders -Perpendicular Screw Supported Versus Lateral Angulated One; a Prospective Randomized Clinical Study
in this study i will use to different designs of t maxillary hybrid expanders that consists of HYREX supported with tow miniscrews to treat the collapsed maxilla in Yonge adolescents
Read the detailed description
the maxilla is expanded by tow diffrent designs of maxillary hybrid expanders
- Conditions
- Cross Bite
- Being tested
- hybrid expanders
- Medical subject headings
- Malocclusion
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
hybrid expandersDevice
tow maxillary hybrid expanders supported anteriorly with tow miniscrews
| Study group | Role | What they receive |
|---|---|---|
| group (1) | Experimental | tow perpendicular miniscrews supported hybrid expanders Receives: Device: hybrid expanders |
| group (2) | Experimental | tow angulated miniscrews supported hybrid expanders Receives: Device: hybrid expanders |
What is being measured
The primary outcome is the main question the study is designed to answer.
change in maxillary width
millimeter
Measured: 12 weeks following end of treatment
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted18 Jan 2022
- Study start10 Jul 2021
- Primary completion10 Jun 2023 (estimated)
- Study completion14 Oct 2023 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Cross BiteStudies of the same condition, open and under way.
- More trials run by Al-Azhar UniversityThe sponsor's other registered studies.
- 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
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Participant
- Enrolment
- 20 participants (actual)
Sponsor and investigators
- Lead sponsor
- Al-Azhar University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Abdallah EL sayed Mohamed Hassan, Al-Azhar University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT05193513
- Sponsor's protocol ID
- 628/3133
- Status last verified
- Jan 2022
- First submitted
- 3 Jan 2022
- Last updated
- 18 Jan 2022
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Undecided
Study at a glance
From the registry record, last updated by the sponsor on 18 Jan 2022. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Comparison of Tow Maxillary Hybrid Expanders -Perpendicular Screw Supported Versus Lateral Angulated One; a Prospective Randomized Clinical Study
- ClinicalTrials.gov ID
- NCT05193513
- Acronym / sponsor ID
- 628/3133
- Conditions
- Cross Bite
- Study type
- Interventional
- Recruitment status
- Unknown status
- Enrolment
- 20 participants (actual)
- Lead sponsor
- Al-Azhar UniversityUniversity, hospital or other
- Study start
- 10 Jul 2021 (actual)
- Primary completion
- 10 Jun 2023 (estimated)
- Study completion
- 14 Oct 2023 (estimated)
- First posted
- 18 Jan 2022 (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.
in this study i will use to different designs of t maxillary hybrid expanders that consists of HYREX supported with tow miniscrews to treat the collapsed maxilla in Yonge adolescents
Detailed description
the maxilla is expanded by tow diffrent designs of maxillary hybrid expanders
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (participant)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| group (1) | Experimental | Device: hybrid expanderstow perpendicular miniscrews supported hybrid expanders |
| group (2) | Experimental | Device: hybrid expanderstow angulated miniscrews supported hybrid expanders |
Who may qualify
- Ages
- 12 to 18 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
Key inclusion criteria (6 listed)
- Medically free male or female patients
- Patients that necessitated maxillary expansion due to constricted maxillary arch shown by a unilateral or bilateral posterior crossbite.
- The patient should have no missing teeth except third molars.
- Age ranged from 12 to 18 years old.
- The patient should have a good gingival condition.
Key exclusion criteria (2 listed)
- 1-hisory of previous orthodontic treatment. 2- Lack of cooperation. 3- Mental problems. 4- Skeletal open bite. 5- TMJ problem.
- -
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 |
|---|---|---|
| hybrid expanderstow maxillary hybrid expanders supported anteriorly with tow miniscrews | Device | group (1), group (2) |
Primary outcome
change in maxillary width
Time frame: 12 weeks following end of treatment
millimeter
Results and safety
Results are not available in the source record.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 18 Jan 2022.
- Individual participant dataSharing planned: Undecided
Related trials for Cross Bite
Recruiting
Impact of Anterior Cross Bite Treatment on Children's Speech Performance
Cross Bite, Malocclusion
Active, not recruiting
Evaluation of Myobrace for Crossbite Correction in Mixed Dentition
Cross Bite
RecruitingObservational study
3D Analysis of Palatal Morphology of Growing Patients Treated With Rapid Palatal Expander.
Cross-bite, Malocclusion in Children
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. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing hybrid expanders in people with Cross Bite, run by Al-Azhar University at 1 site in Egypt.
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 6 inclusion and 2 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: status not confirmed, as of the sponsor's last update on 18 Jan 2022. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Egypt. Whether a site is taking part right now should be confirmed with that site. See every site.
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?
Results are not available in the source record.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
change in maxillary width (time frame: 12 weeks following end of treatment). 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 18 Jan 2022; AzTrials last refreshed its copy on 6 Nov 2026.