Healthy Adultjaw trackingNCT07490483
Occlusal Contact Registration Using Jaw Tracking Device Versus Articulating Paper at Different Head Positions
A study testing jaw tracking device in people with Healthy Adult and Between 20-25 Years Old, run by Cairo University at 1 site in Egypt.
Trial summary
this study will test the ability of the Jaw Tracking Device to detect occlusal contacts as an additional data that could be used during diagnosis and occlusion analysis and the results will be compared to contacts gotten from articulating paper and that will be tested at different head position to also detect the… Read more about this study
- Who is it for?
- Ages 20 to 25 yearsHealthy volunteers can take part
- Conditions the study is for
- Healthy Adult, Between 20-25 Years Old
- What is being tested?
- jaw tracking device
- 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
- 1 Dec 2025to Dec 2026
- Phase
- Interventional
- 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 20 to 25 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Healthy dentate subjects.
- Between 20 and 25 years irrespective of gender.
- No reported pain or history of pain in TMJ and neck region.
- No sign and symptoms of myofascial pain dysfunction.
- Class I jaw relationship with intact dentition.
Who cannot join
- Any abnormal range of mandibular movements.
- Any postural abnormality of cervical spine system such as scoliosis and kyphosis.
- No history of chronic pain or pathology or previous surgery related to masticatory system or cervical spine or TMD symptoms at least 1 year before study.
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
About this study
Official title: Occlusal Contact Registration Using Jaw Tracking Device Versus Articulating Paper at Different Head Positions: A Pilot Study
this study will test the ability of the Jaw Tracking Device to detect occlusal contacts as an additional data that could be used during diagnosis and occlusion analysis and the results will be compared to contacts gotten from articulating paper and that will be tested at different head position to also detect the changes related to change in condylar position.
Read the detailed description
Each subject will be subjected to three different head positions (upright, semi supine 45° and supine position). Positioning of the participants will be standardized as much as possible. A Goniometer (ISICO, Transparent, 360°, India) that has been used in a previous study will be used to standardize all head postures. All participants will be instructed to initially sit in a standard dental chair with the backrest and their arms resting freely at their sides, eyes looking straight. The starting position for cervical flexion will be assumed after the clinician manually adjusts the participant's neck so that the center of the external acoustic meatus to the base of the nose representing the reference plane (camper plane) is parallel to the floor. The axis will be centered over the external acoustic meatus, and the fixed arm of the goniometer will be held vertically, while the movable arm will be aligned with the reference plane . For the supine position, the participant will lay down on his back in the horizontal position with the dental chair adjusted so as to be parallel to the floor . For the semi supine position, the participant's head will be adjusted so that the movable arm of the goniometer is aligned at 45 degrees with the vertical arm that will be centered over the external acoustic meatus. The head rest will be then adjusted to support the head at this position throughout the registration procedure.
Occlusal contact registration :
At each head position, occlusal contacts will be registered using the jaw tracking device and an articulating paper. The occlusal contacts will be assessed by asking the participant to close the mouth in MIP and maintain dental contact. The number of occlusal contacts per tooth will be counted and recorded at each head position for each method then the obtained data will be compared. To determine the inter-rater reliability of the jaw tracking device and articulating paper, the contact points were classified in a dichotomy variable , meaning the presence or absence of contact per tooth, regardless of the surface amount or contact intensity. The presence of any contact, no matter the intensity or its surface, was considered as the presence of contact .
The position of the condyles will be determined using the electronic position analysis (EPA) of the jaw tracking device. The position of the condyles in the upright head position will be considered as the reference. Any change (deviation in mm) from this reference when the head position is changed to supine or semi-supine will be recorded.
- Conditions
- Healthy Adult, Between 20-25 Years Old
- Being tested
- jaw tracking device
- Keywords
- Jaw tracking device, Zebris, Articulating Paper, Condyle
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
jaw tracking deviceDevice
a pilot study testing the ability of jaw tracking device to accurately detect a reliable occlusal contacts that could be used for diagnosis.
| Study group | Role | What they receive |
|---|---|---|
| jaw tracking device for occlusion diagnosis | Experimental | using jaw tracking device to detect occlusal contacts at different head positions Receives: Device: jaw tracking device |
What is being measured
The primary outcome is the main question the study is designed to answer.
number of occlusal contacts per tooth will be counted and recorded at each head position for each method
Measured: Day 1
Secondary outcomes (1)
changes in condylar position using the electronic position analysis (EPA) of the jaw tracking device
Measured: Day 1
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted24 Mar 2026
- Study start1 Dec 2025
- Primary completionJun 2026 (estimated)
- Study completionDec 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Healthy AdultStudies of the same condition, open and under way.
- More trials run by Cairo 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
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Enrolment
- 20 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Cairo University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Hend Ahmed Soliman, Cairo University
- Investigators
- Amal Swelem, Study director, Cairo University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07490483
- Sponsor's protocol ID
- 121225
- Acronym
- jaw tracking
- Status last verified
- Feb 2026
- First submitted
- 26 Feb 2026
- Last updated
- 24 Mar 2026
- Results posted
- No
- Data monitoring committee
- Yes
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- No: because these are personal data
Study at a glance
From the registry record, last updated by the sponsor on 24 Mar 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Occlusal Contact Registration Using Jaw Tracking Device Versus Articulating Paper at Different Head Positions: A Pilot Study
- ClinicalTrials.gov ID
- NCT07490483
- Acronym / sponsor ID
- jaw tracking / 121225
- Conditions
- Healthy Adult, Between 20-25 Years Old
- Keywords
- Jaw tracking device, Zebris, Articulating Paper, Condyle
- Study type
- Interventional
- Recruitment status
- Enrolling by invitation
- Enrolment
- 20 participants (estimated)
- Lead sponsor
- Cairo UniversityUniversity, hospital or other
- Study start
- 1 Dec 2025 (actual)
- Primary completion
- Jun 2026 (estimated)
- Study completion
- Dec 2026 (estimated)
- First posted
- 24 Mar 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.
this study will test the ability of the Jaw Tracking Device to detect occlusal contacts as an additional data that could be used during diagnosis and occlusion analysis and the results will be compared to contacts gotten from articulating paper and that will be tested at different head position to also detect the changes related to change in condylar position.
Detailed description
Each subject will be subjected to three different head positions (upright, semi supine 45° and supine position). Positioning of the participants will be standardized as much as possible. A Goniometer (ISICO, Transparent, 360°, India) that has been used in a previous study will be used to standardize all head postures. All participants will be instructed to initially sit in a standard dental chair with the backrest and their arms resting freely at their sides, eyes looking straight. The starting position for cervical flexion will be assumed after the clinician manually adjusts the participant's neck so that the center of the external acoustic meatus to the base of the nose representing the reference plane (camper plane) is parallel to the floor. The axis will be centered over the external acoustic meatus, and the fixed arm of the goniometer will be held vertically, while the movable arm will be aligned with the reference plane . For the supine position, the participant will lay down on his back in the horizontal position with the dental chair adjusted so as to be parallel to the floor . For the semi supine position, the participant's head will be adjusted so that the movable arm of the goniometer is aligned at 45 degrees with the vertical arm that will be centered over the external acoustic meatus. The head rest will be then adjusted to support the head at this position throughout the registration procedure.
Occlusal contact registration :
At each head position, occlusal contacts will be registered using the jaw tracking device and an articulating paper. The occlusal contacts will be assessed by asking the participant to close the mouth in MIP and maintain dental contact. The number of occlusal contacts per tooth will be counted and recorded at each head position for each method then the obtained data will be compared. To determine the inter-rater reliability of the jaw tracking device and articulating paper, the contact points were classified in a dichotomy variable , meaning the presence or absence of contact per tooth, regardless of the surface amount or contact intensity. The presence of any contact, no matter the intensity or its surface, was considered as the presence of contact .
The position of the condyles will be determined using the electronic position analysis (EPA) of the jaw tracking device. The position of the condyles in the upright head position will be considered as the reference. Any change (deviation in mm) from this reference when the head position is changed to supine or semi-supine will be recorded.
Study design
- Primary purpose
- Diagnosis
- Allocation
- Not applicable
- Intervention model
- Single group
- Masking
- None (open label)
- Number of arms
- 1
| Arm | Type | Receives |
|---|---|---|
| jaw tracking device for occlusion diagnosis | Experimental | Device: jaw tracking deviceusing jaw tracking device to detect occlusal contacts at different head positions |
Who may qualify
- Ages
- 20 to 25 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (5 listed)
- Healthy dentate subjects.
- Between 20 and 25 years irrespective of gender.
- No reported pain or history of pain in TMJ and neck region.
- No sign and symptoms of myofascial pain dysfunction.
- Class I jaw relationship with intact dentition.
Key exclusion criteria (3 listed)
- Any abnormal range of mandibular movements.
- Any postural abnormality of cervical spine system such as scoliosis and kyphosis.
- No history of chronic pain or pathology or previous surgery related to masticatory system or cervical spine or TMD symptoms at least 1 year before study.
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 |
|---|---|---|
| jaw tracking devicea pilot study testing the ability of jaw tracking device to accurately detect a reliable occlusal contacts that could be used for diagnosis. | Device | jaw tracking device for occlusion diagnosis |
Primary outcome
number of occlusal contacts per tooth will be counted and recorded at each head position for each method
Time frame: Day 1
1 secondary outcome
changes in condylar position using the electronic position analysis (EPA) of the jaw tracking device
Time frame: Day 1
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 24 Mar 2026.
- Related InfoLink provided by the sponsor.
- Individual participant dataSharing planned: No. because these are personal data
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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.
Amal Swelem study director
Cairo University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing jaw tracking device in people with Healthy Adult and Between 20-25 Years Old, run by Cairo 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 5 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: enrolling by invitation, as of the sponsor's last update on 24 Mar 2026. 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?
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?
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?
number of occlusal contacts per tooth will be counted and recorded at each head position for each method (time frame: Day 1). 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 24 Mar 2026.