Tooth Loss and Rehabilitation With Telescopic Crown ProsthesesNCT07682623
Rigid Versus Non-Rigid Digitally Fabricated Telescopic Double Crown Prosthesis
A study testing Rigid telescopic double crown prosthesis and Non-rigid telescopic double crown prosthesis in people with Tooth Loss and Rehabilitation With Telescopic Crown Prostheses, run by Mansoura University.
Trial summary
This study aims to compare the clinical and patient satisfaction outcomes of rigid versus non-rigid digitally fabricated telescopic double crown prostheses supported by teeth and implants. The study evaluates the effect of different attachment designs on prosthetic performance and patient satisfaction." Read more about this study
- Who is it for?
- Ages 50 to 65 years
- Conditions the study is for
- Tooth Loss and Rehabilitation With Telescopic Crown Prostheses
- What is being tested?
- Rigid telescopic double crown prosthesis and Non-rigid telescopic double crown prosthesis
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 10 participants
- Where
- No sites listed yet
- Study dates
- 22 Dec 2026to 14 May 2027
- 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 50 to 65 years
- All sexes
- No healthy volunteers
- Adult, Older adult
Who may be able to join
- Patients requiring telescopic overdenture prosthesis.
Who cannot join
- Patients with systemic conditions affecting periodontal or prosthetic treatment.
- Patients unable to attend follow-up visits
- -
About this study
Official title: Rigid Versus Non-Rigid Digitally Fabricated Telescopic Double Crown Prosthesis Connecting Teeth and Implants: A Crossover Study of Soft Tissue Health and Patient Satisfaction
This study aims to compare the clinical and patient satisfaction outcomes of rigid versus non-rigid digitally fabricated telescopic double crown prostheses supported by teeth and implants. The study evaluates the effect of different attachment designs on prosthetic performance and patient satisfaction."
- Being tested
- Rigid telescopic double crown prosthesis, Non-rigid telescopic double crown prosthesis
- Medical subject headings
- Tooth Loss
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Rigid telescopic double crown prosthesisDevice
Digitally fabricated rigid telescopic double crown prosthesis
Non-rigid telescopic double crown prosthesisDevice
Digitally fabricated non-rigid telescopic double crown prosthesis
| Study group | Role | What they receive |
|---|---|---|
| Rigid telescopic double crown prosthesis | Experimental | Participants receiving rigid digitally fabricated telescopic double crown prostheses. Receives: Device: Rigid telescopic double crown prosthesis |
| Non-rigid telescopic double crown prosthesis | Active comparator | Participants receiving non-rigid digitally fabricated telescopic double crown prostheses. Receives: Device: Non-rigid telescopic double crown prosthesis |
What is being measured
The primary outcome is the main question the study is designed to answer.
Soft tissue health
Evaluation of peri-abutment soft tissue health in patients receiving rigid and non-rigid digitally fabricated telescopic double crown prostheses.
Measured: Immediately after insertion, 3 months, and 6 months after prosthesis insertion
Secondary outcomes (1)
Patient satisfaction
Assessment of patient satisfaction with rigid and non-rigid digitally fabricated telescopic double crown prostheses.
Measured: Immediately after insertion, 3 months, and 6 months after prosthesis insertion
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted6 Jul 2026
- Study start22 Dec 2026 (estimated)
- Primary completion20 Jan 2027 (estimated)
- Study completion14 May 2027 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Tooth Loss and Rehabilitation With Telescopic Crown ProsthesesStudies of the same condition, open and under way.
- More trials run by Mansoura 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
- Crossover
- Masking
- None (open label)
- Enrolment
- 10 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Mansoura University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, naglaa samir, Mansoura University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07682623
- Sponsor's protocol ID
- TELDC-2025
- Status last verified
- Dec 2025
- First submitted
- 28 Jun 2026
- Last updated
- 6 Jul 2026
- Results posted
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
Study at a glance
From the registry record, last updated by the sponsor on 6 Jul 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Rigid Versus Non-Rigid Digitally Fabricated Telescopic Double Crown Prosthesis Connecting Teeth and Implants: A Crossover Study of Soft Tissue Health and Patient Satisfaction
- ClinicalTrials.gov ID
- NCT07682623
- Acronym / sponsor ID
- TELDC-2025
- Study type
- Interventional
- Recruitment status
- Not yet recruiting
- Enrolment
- 10 participants (estimated)
- Lead sponsor
- Mansoura UniversityUniversity, hospital or other
- Study start
- 22 Dec 2026 (estimated)
- Primary completion
- 20 Jan 2027 (estimated)
- Study completion
- 14 May 2027 (estimated)
- First posted
- 6 Jul 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 aims to compare the clinical and patient satisfaction outcomes of rigid versus non-rigid digitally fabricated telescopic double crown prostheses supported by teeth and implants. The study evaluates the effect of different attachment designs on prosthetic performance and patient satisfaction."
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Rigid telescopic double crown prosthesis | Experimental | Device: Rigid telescopic double crown prosthesisParticipants receiving rigid digitally fabricated telescopic double crown prostheses. |
| Non-rigid telescopic double crown prosthesis | Active comparator | Device: Non-rigid telescopic double crown prosthesisParticipants receiving non-rigid digitally fabricated telescopic double crown prostheses. |
Who may qualify
- Ages
- 50 to 65 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (1 listed)
- Patients requiring telescopic overdenture prosthesis.
Key exclusion criteria (3 listed)
- Patients with systemic conditions affecting periodontal or prosthetic treatment.
- Patients unable to attend follow-up visits
- -
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 |
|---|---|---|
| Rigid telescopic double crown prosthesisDigitally fabricated rigid telescopic double crown prosthesis | Device | Rigid telescopic double crown prosthesis |
| Non-rigid telescopic double crown prosthesisDigitally fabricated non-rigid telescopic double crown prosthesis | Device | Non-rigid telescopic double crown prosthesis |
Primary outcome
Soft tissue health
Time frame: Immediately after insertion, 3 months, and 6 months after prosthesis insertion
Evaluation of peri-abutment soft tissue health in patients receiving rigid and non-rigid digitally fabricated telescopic double crown prostheses.
1 secondary outcome
Patient satisfaction
Time frame: Immediately after insertion, 3 months, and 6 months after prosthesis insertion
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 6 Jul 2026.
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.
The record lists no contact. Use the official record to reach the sponsor.
Questions about this trial
What is this clinical trial studying?
A study testing Rigid telescopic double crown prosthesis and Non-rigid telescopic double crown prosthesis in people with Tooth Loss and Rehabilitation With Telescopic Crown Prostheses, run by Mansoura University.
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 1 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 6 Jul 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?
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?
Soft tissue health (time frame: Immediately after insertion, 3 months, and 6 months after prosthesis insertion). 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 6 Jul 2026.