Scan TimeNCT07446790
Scan Time and Prosthetic Complications of Intraoral Scanning Versus Intraoral Photogrammetry for Full-Arch Titanium Framework With Zirconia Overlay Implant Screw-Retained Prostheses
A study testing Intraoral photogrammetry (IOP) and Intraoral scanner (IOS) in people with Scan Time, run by Cairo University at 1 site in Egypt.
Trial summary
This study aims to evaluate the effect of intra-oral scanning and intra-oral photogrammetry on scan time and prosthetic complications in patients receiving full-arch titanium framework with zirconium overlay implant screw-retained prostheses. Read more about this study
- Who is it for?
- Any age
- Conditions the study is for
- Scan Time
- What is being tested?
- Intraoral photogrammetry (IOP) and Intraoral scanner (IOS)
- Type of treatment
- Pill or oral medicine, Medical device
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 11 participants
- Where
- 1 siteEgypt
- Study dates
- 1 Aug 2025to Jun 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 Any age
- All sexes
- No healthy volunteers
- Child, Adult, Older adult
Who may be able to join
- Patients requiring maxillary and/or mandibular full arch screw-retained implant-supported prosthesis.
- Number of implants placed per arch ranging from 4-6 implants per arch.
- Completely edentulous patients with sufficient inter-arch space to receive fixed prosthesis (Crown height space 9-15 mm per arch).
- Adequate zone of keratinized mucosa (> 2mm width).
- Both genders.
- Acceptable oral hygiene.
- Cooperative patients.
- Controlled systemic diseases (Diabetes, hypertension).
Who cannot join
- Completely edentulous patients with insufficient inter-arch space to receive fixed prosthesis (Crown height space lesser than 9mm per arch).
- Completely edentulous patients with in-adequate zone of keratinized mucosa (< 2mm).
- Un cooperative patients.
- Poor oral hygiene.
- Uncontrolled systemic diseases (Diabetes, hypertension).
Trial locations and contacts
1 site in 1 country. Contact the study team or a site near you to ask about taking part.
Egypt1 site, 1 recruiting
- Recruiting
Cairo University
Cairo, 11511
Nour El Hoda M El Tarabishi, +2001001428905, nourelhodaeltarabishi@dentistry.cu.edu.eg
About this study
Official title: Scan Time and Prosthetic Complications of Intraoral Scanning Versus Intraoral Photogrammetry for Full-Arch Titanium Framework With Zirconia Overlay Implant Screw-Retained Prostheses: A Randomized Clinical Trial
This study aims to evaluate the effect of intra-oral scanning and intra-oral photogrammetry on scan time and prosthetic complications in patients receiving full-arch titanium framework with zirconium overlay implant screw-retained prostheses.
Participants will:
Receive a full arch implant prosthesis and scan time will be recorded. Prosthetic complications (e.g., screw loosening, framework fracture, zirconia chipping) will be recorded at 3 and 6-month follow-up period post-delivery and we will manage complications at the time of prosthetic complication occurrence.
- Conditions
- Scan Time
- Being tested
- Intraoral photogrammetry (IOP), Intraoral scanner (IOS)
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Intraoral photogrammetry (IOP)Device
IOP will be used in the study to take a digital impression for the implants. The scanner will be used to record the soft tissue anatomy and trans-mucosal abutments. 3D Scan bodies will be fitted on the trans-mucosal abutments that are screwed on the implants to capture their position and scanning will be done. A scan of the soft tissue and scan bodies will finally be conducted.
Intraoral scanner (IOS)Device
Intra-oral scanner will be used in the study to take a digital impression for the implants. 3D printed generic Scan bodies with unified shape and length replacing the traditional transfer copings will be press fitted on the trans-mucosal abutments and pickup cylinders that are screwed on the implants to capture their position and intra-oral scanning will be done.
| Study group | Role | What they receive |
|---|---|---|
| IOS will be performed using commercially available IOS device. The scan data will be used to design | Active comparator | Not described Receives: Device: Intraoral scanner (IOS) |
| IOP will be performed using a specialized photogrammetry system. The photogrammetry data will be use | Experimental | Not described Receives: Device: Intraoral photogrammetry (IOP) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Scan time
Measured: At week 1 during the clinical visit of scanning the arch and bite registration.
Secondary outcomes (1)
Prosthetic complications
Measured: At 3, 6 months of delivery of final prosthesis.
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted3 Mar 2026
- Study start1 Aug 2025
- Primary completionJun 2026 (estimated)
- Study completionJun 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Scan TimeStudies 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
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 11 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Cairo University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Nour El Hoda Mahmoud Naguib El Tarabishi, Cairo University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07446790
- Sponsor's protocol ID
- 30725
- Status last verified
- Feb 2026
- First submitted
- 22 Dec 2025
- Last updated
- 3 Mar 2026
- Results posted
- 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 3 Mar 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Scan Time and Prosthetic Complications of Intraoral Scanning Versus Intraoral Photogrammetry for Full-Arch Titanium Framework With Zirconia Overlay Implant Screw-Retained Prostheses: A Randomized Clinical Trial
- ClinicalTrials.gov ID
- NCT07446790
- Acronym / sponsor ID
- 30725
- Conditions
- Scan Time
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 11 participants (estimated)
- Lead sponsor
- Cairo UniversityUniversity, hospital or other
- Study start
- 1 Aug 2025 (actual)
- Primary completion
- Jun 2026 (estimated)
- Study completion
- Jun 2026 (estimated)
- First posted
- 3 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 aims to evaluate the effect of intra-oral scanning and intra-oral photogrammetry on scan time and prosthetic complications in patients receiving full-arch titanium framework with zirconium overlay implant screw-retained prostheses.
Participants will:
Receive a full arch implant prosthesis and scan time will be recorded. Prosthetic complications (e.g., screw loosening, framework fracture, zirconia chipping) will be recorded at 3 and 6-month follow-up period post-delivery and we will manage complications at the time of prosthetic complication occurrence.
Study design
- Primary purpose
- Treatment
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| IOS will be performed using commercially available IOS device. The scan data will be used to design | Active comparator | Device: Intraoral scanner (IOS) |
| IOP will be performed using a specialized photogrammetry system. The photogrammetry data will be use | Experimental | Device: Intraoral photogrammetry (IOP) |
Who may qualify
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Child, Adult, Older adult
Key inclusion criteria (8 listed)
- Patients requiring maxillary and/or mandibular full arch screw-retained implant-supported prosthesis.
- Number of implants placed per arch ranging from 4-6 implants per arch.
- Completely edentulous patients with sufficient inter-arch space to receive fixed prosthesis (Crown height space 9-15 mm per arch).
- Adequate zone of keratinized mucosa (> 2mm width).
- Both genders.
Key exclusion criteria (5 listed)
- Completely edentulous patients with insufficient inter-arch space to receive fixed prosthesis (Crown height space lesser than 9mm per arch).
- Completely edentulous patients with in-adequate zone of keratinized mucosa (< 2mm).
- Un cooperative patients.
- Poor oral hygiene.
- Uncontrolled systemic diseases (Diabetes, hypertension).
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 |
|---|---|---|
| Intraoral photogrammetry (IOP)IOP will be used in the study to take a digital impression for the implants. The scanner will be used to record the soft tissue anatomy and trans-mucosal abutments. 3D Scan bodies will be fitted on the trans-mucosal abutments that are screwed on the implants to capture their position and scanning will be done. A scan of the soft tissue and scan bodies will finally be conducted. | Device | IOP will be performed using a specialized photogrammetry system. The photogrammetry data will be use |
| Intraoral scanner (IOS)Intra-oral scanner will be used in the study to take a digital impression for the implants. 3D printed generic Scan bodies with unified shape and length replacing the traditional transfer copings will be press fitted on the trans-mucosal abutments and pickup cylinders that are screwed on the implants to capture their position and intra-oral scanning will be done. | Device | IOS will be performed using commercially available IOS device. The scan data will be used to design |
Primary outcome
Scan time
Time frame: At week 1 during the clinical visit of scanning the arch and bite registration.
1 secondary outcome
Prosthetic complications
Time frame: At 3, 6 months of delivery of final prosthesis.
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 3 Mar 2026.
- Individual participant dataSharing planned: No
Related trials for Scan Time
Not yet recruitingObservational study
Comparison of Reliability, Time Cost, and Participant Comfort of Lymphedema Assessments in Upper Extremity
Lymphedema, Upper Extremity Lymphedema
RecruitingPhase 4
Impact of Fluciclovine (18F) PET (Positron Emission Tomography) on the Management of Prostate Cancer Following Negative or Equivocal PSMA (Prostate-Specific Membrane Antigen) PET Imaging at the Time of Biochemical Recurrence
Prostate Cancer
Active, not recruiting
The Association Between CBT-I Dose, Sleep Duration, and Fatigue in Breast Cancer Patients
Chronic Insomnia, Cancer-related Problem/Condition
Not yet recruiting
Passive Fit and Time Efficiency in All On-X Implants Protocols Using Photogrammetry, Splinted Scan Bodies, and Conventional Impression Technique
Passive Fit of Full-arch Implant Prostheses
Active, not recruiting
UFPTI 2403-PR12: Real-Time Volumetric Ionizing Radiation Acoustic Imaging for In-vivo Proton Treatment Monitoring in Pencil-Beam Scanning
Prostate Cancer
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.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Intraoral photogrammetry (IOP) and Intraoral scanner (IOS) in people with Scan Time, 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 8 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: looking for participants now, as of the sponsor's last update on 3 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?
Contact Nour El Hoda M El Tarabishi (+2001001428905, nourelhodaeltarabishi@dentistry.cu.edu.eg), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Scan time (time frame: At week 1 during the clinical visit of scanning the arch and bite registration.). 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 3 Mar 2026.