Partially Edentulous JawNCT07849972
Evaluation of the Effect of PEEK Versus Co-Cr Digital Telescopic Mandibular Partial Denture on Patient Satisfaction and the Supporting Structure
A study testing PEEK Telescopic Removable Partial Denture and Co-Cr Telescopic Partial Denture in people with Partially Edentulous Jaw, run by Al-Azhar University at 1 site in Egypt.
Trial summary
This study evaluates and compares the clinical performance, retention, and patient satisfaction between Polyetheretherketone (PEEK) and Cobalt-Chromium (Co-Cr) digital telescopic mandibular removable partial dentures. Read more about this study
- Who is it for?
- Ages 40 to 50 years
- Conditions the study is for
- Partially Edentulous Jaw
- What is being tested?
- PEEK Telescopic Removable Partial Denture and Co-Cr Telescopic Partial Denture
- Type of treatment
- Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 12 participants
- Where
- 1 siteEgypt
- Study dates
- 28 Dec 2023to 21 Jun 2026
- 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 40 to 50 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- Mandibular Kennedy Class I partially edentulous arches. Terminal abutment is bilateral mandibular second premolar. Maxillary arch dentulous or with fixed prostheses. Age 40-50 years. Good oral hygiene and healthy periodontal condition. Healthy mucosa without inflammation or flabby tissues. Teeth free from mobility. Free from systemic, metabolic, or bone diseases.
Who cannot join
- Parafunctional habits (bruxism/clenching). Xerostomia or excessive salivation. Temporomandibular joint disorders. Insufficient interarch space. Uncooperative patients.
Trial locations and contacts
1 site in 1 country.
Egypt1 site
Faculty of Dental Medicine, Al-Azhar University
Cairo, Cairo Governorate, 11884
About this study
This study evaluates and compares the clinical performance, retention, and patient satisfaction between Polyetheretherketone (PEEK) and Cobalt-Chromium (Co-Cr) digital telescopic mandibular removable partial dentures. Patients requiring mandibular telescopic removable partial dentures receive digitally fabricated prostheses to assess retention, abutment tooth preservation, periodontal indices, and patient satisfaction over a 12-month follow-up period.
- Conditions
- Partially Edentulous Jaw
- Being tested
- PEEK Telescopic Removable Partial Denture, Co-Cr Telescopic Partial Denture
- Medical subject headings
- Jaw, Edentulous, Partially
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
PEEK Telescopic Removable Partial DentureDevice
Polyetheretherketone (PEEK) telescopic mandibular removable partial denture.
Co-Cr Telescopic Partial DentureDevice
Digitally fabricated Cobalt-Chromium (Co-Cr) telescopic mandibular removable partial denture.
| Study group | Role | What they receive |
|---|---|---|
| PEEK Telescopic RPD | Experimental | Patients receiving digitally fabricated Polyetheretherketone (PEEK) telescopic mandibular Receives: Device: PEEK Telescopic Removable Partial Denture; Device: Co-Cr Telescopic Partial Denture |
| Co-Cr Telescopic RPD | Active comparator | Patients receiving digitally fabricated Cobalt-Chromium (Co-Cr) telescopic mandibular removable partial dentures. Receives: Device: PEEK Telescopic Removable Partial Denture; Device: Co-Cr Telescopic Partial Denture |
What is being measured
The primary outcome is the main question the study is designed to answer.
Prosthetic Retention
Retention force of PEEK vs Co-Cr telescopic dentures measured using a digital force gauge in Newtons.
Measured: Baseline, 6 months, and 12 months
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted30 Sep 2026
- Study start28 Dec 2023
- Primary completion21 Jun 2026
- Study completion21 Jun 2026
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Partially Edentulous JawStudies 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
- None (open label)
- Enrolment
- 12 participants (actual)
Sponsor and investigators
- Lead sponsor
- Al-Azhar University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Eman Fathy Rashad, Al-Azhar University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07849972
- Sponsor's protocol ID
- PPR2201
- Status last verified
- Sep 2026
- First submitted
- 24 Sep 2026
- Last updated
- 30 Sep 2026
- Results posted
- No
- Data monitoring committee
- No
- 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 30 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of the Effect of PEEK Versus Co-Cr Digital Telescopic Mandibular Partial Denture on Patient Satisfaction and the Supporting Structure
- ClinicalTrials.gov ID
- NCT07849972
- Acronym / sponsor ID
- PPR2201
- Conditions
- Partially Edentulous Jaw
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 12 participants (actual)
- Lead sponsor
- Al-Azhar UniversityUniversity, hospital or other
- Study start
- 28 Dec 2023 (actual)
- Primary completion
- 21 Jun 2026 (actual)
- Study completion
- 21 Jun 2026 (actual)
- First posted
- 30 Sep 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 evaluates and compares the clinical performance, retention, and patient satisfaction between Polyetheretherketone (PEEK) and Cobalt-Chromium (Co-Cr) digital telescopic mandibular removable partial dentures. Patients requiring mandibular telescopic removable partial dentures receive digitally fabricated prostheses to assess retention, abutment tooth preservation, periodontal indices, and patient satisfaction over a 12-month follow-up period.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| PEEK Telescopic RPD | Experimental | Device: PEEK Telescopic Removable Partial Denture, Device: Co-Cr Telescopic Partial DenturePatients receiving digitally fabricated Polyetheretherketone (PEEK) telescopic mandibular |
| Co-Cr Telescopic RPD | Active comparator | Device: PEEK Telescopic Removable Partial Denture, Device: Co-Cr Telescopic Partial DenturePatients receiving digitally fabricated Cobalt-Chromium (Co-Cr) telescopic mandibular removable partial dentures. |
Who may qualify
- Ages
- 40 to 50 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (1 listed)
- Mandibular Kennedy Class I partially edentulous arches. Terminal abutment is bilateral mandibular second premolar. Maxillary arch dentulous or with fixed prostheses. Age 40-50 years. Good oral hygiene and healthy periodontal condition. Healthy mucosa without inflammation or flabby tissues. Teeth free from mobility. Free from systemic, metabolic, or bone diseases.
Key exclusion criteria (1 listed)
- Parafunctional habits (bruxism/clenching). Xerostomia or excessive salivation. Temporomandibular joint disorders. Insufficient interarch space. Uncooperative patients.
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 |
|---|---|---|
| PEEK Telescopic Removable Partial DenturePolyetheretherketone (PEEK) telescopic mandibular removable partial denture. | Device | Co-Cr Telescopic RPD, PEEK Telescopic RPD |
| Co-Cr Telescopic Partial DentureDigitally fabricated Cobalt-Chromium (Co-Cr) telescopic mandibular removable partial denture. | Device | Co-Cr Telescopic RPD, PEEK Telescopic RPD |
Primary outcome
Prosthetic Retention
Time frame: Baseline, 6 months, and 12 months
Retention force of PEEK vs Co-Cr telescopic dentures measured using a digital force gauge in Newtons.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 30 Sep 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. 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 PEEK Telescopic Removable Partial Denture and Co-Cr Telescopic Partial Denture in people with Partially Edentulous Jaw, 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 1 inclusion and 1 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: finished, as of the sponsor's last update on 30 Sep 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?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
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?
Prosthetic Retention (time frame: Baseline, 6 months, and 12 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 30 Sep 2026.