Partially Edentulous JawNCT07541625
Effect of Scanning Technology on Internal Fit of Digitally Customized Intra-radicular Attachments
A study testing conventional impression and Intraoral scanner in people with Partially Edentulous Jaw, run by October 6 University at 1 site in Egypt.
Trial summary
This study aims to evaluate the marginal and internal fit of intra-radicular attachments fabricated by direct scanning using two different intraoral scanners compared to indirect scanning of conventional impressions. Read more about this study
- Who is it for?
- Ages 18 to 65 yearsHealthy volunteers can take part
- Conditions the study is for
- Partially Edentulous Jaw
- What is being tested?
- conventional impression and Intraoral scanner
- Type of treatment
- Medical device, Surgery or procedure
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 20 participants
- Where
- 1 siteEgypt
- Study dates
- 30 Apr 2026to 30 Aug 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 18 to 65 years
- All sexes
- Healthy volunteers accepted
- Adult, Older adult
Who may be able to join
- Endodontically treated teeth requiring intraradicular attachments.
- Adequate oral hygiene.
- Partially edentulous cases where compromised remaining teethcannot serve as abutments for traditional removable partial dentures (RPDs). -
- Periodontally compromised teeth that can still be maintainedasoverdenture abutments with proper treatment.
Who cannot join
- Severely compromised remaining teeth with poor prognosis duetoextensive decay or severe periodontal disease.
- Severe bone loss around abutment teeth.
- Severe malocclusion making overdenture placement difficult.
- Limited inter-arch space that cannot accommodate overdenturecomponents. 5. Poor oral hygiene increasing the risk of decay or periodontal issues.
- 6. Patients medically unfit for any surgical procedure.
Trial locations and contacts
1 site in 1 country.
About this study
Official title: Evaluation of Marginal and Internal Fit of Intraradicular Attachments Fabricated byDirect &Indirect Scanning Techniques
This study aims to evaluate the marginal and internal fit of intra-radicular attachments fabricated by direct scanning using two different intraoral scanners compared to indirect scanning of conventional impressions.
Read the detailed description
This study evaluates the marginal and internal fit of intra-radicular attachments fabricated using different techniques. It compares direct digital scanning with two intraoral scanners and indirect scanning using conventional impressions. The aim is to determine which method provides better adaptation and accuracy, and whether there are differences between the two scanners in achieving clinically acceptable fit.
- Conditions
- Partially Edentulous Jaw
- Being tested
- conventional impression, Intraoral scanner
- Keywords
- Intraradicular attachments, Marginal fit, Internal fit, Intraoral scanner, Scan accuracy, Prosthetic fit
- 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.
conventional impressionProcedure or surgery
indirect scanning for conventional impression
Intraoral scannerDevice
Use of an intraoral scanner to obtain digital impressions for the fabrication of intra-radicular attachments. Two different intraoral scanners will be used to capture digital data of the prepared tooth, and the resulting scans will be used to fabricate the attachments through a CAD/CAM workflow. The accuracy of the fit will be evaluated and compared with conventional impression techniques.
| Study group | Role | What they receive |
|---|---|---|
| Indirect technique for conventional impression | Active comparator | Not described Receives: Procedure: conventional impression |
| Direct scanning by intraoral scanner A | Experimental | Not described Receives: Device: Intraoral scanner |
| Direct scanning by intraoral scanner B | Experimental | Not described Receives: Device: Intraoral scanner |
What is being measured
The primary outcome is the main question the study is designed to answer.
Marginal and internal fit evaluated using software.
Measured: Immediately after scanning
Secondary outcomes (1)
Time control, the time taken for each scanningor impression-taking process will be recorded in seconds using a stopwatch.
Measured: During scanning
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted21 Apr 2026
- Study start30 Apr 2026
- Primary completion26 Aug 2026
- Study completion30 Aug 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.
- 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
- Other
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 20 participants (actual)
Sponsor and investigators
- Lead sponsor
- October 6 University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Nancy Adel, October 6 University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07541625
- Sponsor's protocol ID
- Intraradicular attachment fit
- Status last verified
- Aug 2026
- First submitted
- 13 Apr 2026
- Last updated
- 10 Sep 2026
- 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 10 Sep 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Evaluation of Marginal and Internal Fit of Intraradicular Attachments Fabricated byDirect &Indirect Scanning Techniques
- ClinicalTrials.gov ID
- NCT07541625
- Acronym / sponsor ID
- Intraradicular attachment fit
- Conditions
- Partially Edentulous Jaw
- Keywords
- Intraradicular attachments, Marginal fit, Internal fit, Intraoral scanner, Scan accuracy, Prosthetic fit
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 20 participants (actual)
- Lead sponsor
- October 6 UniversityUniversity, hospital or other
- Study start
- 30 Apr 2026 (actual)
- Primary completion
- 26 Aug 2026 (actual)
- Study completion
- 30 Aug 2026 (actual)
- First posted
- 21 Apr 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 evaluate the marginal and internal fit of intra-radicular attachments fabricated by direct scanning using two different intraoral scanners compared to indirect scanning of conventional impressions.
Detailed description
This study evaluates the marginal and internal fit of intra-radicular attachments fabricated using different techniques. It compares direct digital scanning with two intraoral scanners and indirect scanning using conventional impressions. The aim is to determine which method provides better adaptation and accuracy, and whether there are differences between the two scanners in achieving clinically acceptable fit.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Indirect technique for conventional impression | Active comparator | Procedure: conventional impression |
| Direct scanning by intraoral scanner A | Experimental | Device: Intraoral scanner |
| Direct scanning by intraoral scanner B | Experimental | Device: Intraoral scanner |
Who may qualify
- Ages
- 18 to 65 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult, Older adult
Key inclusion criteria (4 listed)
- Endodontically treated teeth requiring intraradicular attachments.
- Adequate oral hygiene.
- Partially edentulous cases where compromised remaining teethcannot serve as abutments for traditional removable partial dentures (RPDs). -
- Periodontally compromised teeth that can still be maintainedasoverdenture abutments with proper treatment.
Key exclusion criteria (5 listed)
- Severely compromised remaining teeth with poor prognosis duetoextensive decay or severe periodontal disease.
- Severe bone loss around abutment teeth.
- Severe malocclusion making overdenture placement difficult.
- Limited inter-arch space that cannot accommodate overdenturecomponents. 5. Poor oral hygiene increasing the risk of decay or periodontal issues.
- 6. Patients medically unfit for any surgical procedure.
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 |
|---|---|---|
| conventional impressionindirect scanning for conventional impression | Procedure or surgery | Indirect technique for conventional impression |
| Intraoral scannerUse of an intraoral scanner to obtain digital impressions for the fabrication of intra-radicular attachments. Two different intraoral scanners will be used to capture digital data of the prepared tooth, and the resulting scans will be used to fabricate the attachments through a CAD/CAM workflow. The accuracy of the fit will be evaluated and compared with conventional impression techniques. | Device | Direct scanning by intraoral scanner A, Direct scanning by intraoral scanner B |
Primary outcome
Marginal and internal fit evaluated using software.
Time frame: Immediately after scanning
1 secondary outcome
Time control, the time taken for each scanningor impression-taking process will be recorded in seconds using a stopwatch.
Time frame: During scanning
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 10 Sep 2026.
- Individual participant dataSharing planned: Undecided
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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 conventional impression and Intraoral scanner in people with Partially Edentulous Jaw, run by October 6 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 4 inclusion and 5 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 10 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?
Marginal and internal fit evaluated using software. (time frame: Immediately after scanning). 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 10 Sep 2026.