Dental EducationNCT07462156
AI-Driven Digital Self-Assessment Framework for Preclinical Tooth Preparation
A study testing Non-metrology-grade digital group (NMG), metrology-grade digital group (MG) and Traditional group (TG) in people with Dental Education, run by Alexandria University at 1 site in Egypt.
Trial summary
This study aims to compare traditional faculty-based assessment with two AI-assisted digital self-assessment software programs for evaluating tooth preparations for metal-ceramic crowns for undergraduate dental preclinical students at College of Dentistry El Alamein, AAST in terms of: (1) Accuracy of preparation… Read more about this study
- Who is it for?
- Ages 18 to 20 years
- Conditions the study is for
- Dental Education
- What is being tested?
- Non-metrology-grade digital group (NMG), metrology-grade digital group (MG) and Traditional group (TG)
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 36 participants
- Where
- 1 siteEgypt
- Study dates
- 1 Feb 2026to 25 Mar 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 18 to 20 years
- All sexes
- No healthy volunteers
- Adult
Who may be able to join
- Third-year preclinical dental student
- Completion of the fixed prosthodontics tooth-preparation course.
- No prior formal training or use of digital 3D tooth-preparation assessment software.
Who cannot join
- previous repetition of the course
- Substantial prior experience with digital metrology/3D inspection software
- Inability to attend all scheduled training and examination sessions.
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
College of Dentistry El Alamein - AAST
El Alamein
Mahinour Yousry, PhD, dr.mahinour.ahmed@aast.edu
Mahinour Yousry, PhD
About this study
Official title: IntelliPrep: An AI-Driven Digital Self-Assessment Framework for Preclinical Tooth Preparation-A Randomized Controlled Trial
This study aims to compare traditional faculty-based assessment with two AI-assisted digital self-assessment software programs for evaluating tooth preparations for metal-ceramic crowns for undergraduate dental preclinical students at College of Dentistry El Alamein, AAST in terms of: (1) Accuracy of preparation outcomes, (2) Student learning outcomes over a training period.
- Conditions
- Dental Education
- Being tested
- Non-metrology-grade digital group (NMG), metrology-grade digital group (MG), Traditional group (TG)
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Non-metrology-grade digital group (NMG)Other
Students in NMG used a license-free 3D comparison workflow (Medit Link/Compare, Compare tool; Medit Compare v3.4.9; Medit) to superimpose the prepared-tooth scan (TT-STL) onto the unprepared reference scan (RTS-STL).
metrology-grade digital group (MG)Other
Students in MG used metrology-grade 3D inspection software (Geomagic Control X v2018.1.1; 3D Systems)to superimpose TT-STL onto RTS-STL. Initial Alignment was performed followed by Best Fit Alignment (iterative closest point registration).
Traditional group (TG)Other
Students in TG assessed reduction with a silicone putty index and a periodontal probe across the previously predefined regions. Feedback was provided by experienced instructors (≥5 years of clinical teaching experience) using the same regional assessment approach.
| Study group | Role | What they receive |
|---|---|---|
| Digital assessment 1 | Experimental | Not described Receives: Other: Non-metrology-grade digital group (NMG) |
| Digital assessment 2 | Experimental | Not described Receives: Other: metrology-grade digital group (MG) |
| Conventional assessment | Active comparator | Not described Receives: Other: Traditional group (TG) |
What is being measured
The primary outcome is the main question the study is designed to answer.
Change in preparation scores
Preparations were scored with a prespecified 10-item rubric derived from ADEX criteria for mandibular first molar metal-ceramic crown preparation (overall score 0-10). Each item was rated on a 3-level scale (0, 0.5, or 1) and summed to obtain a total score
Measured: Up to 5 weeks
RMS deviation from the ideal preparation
all the resulting TT-STL files across all sessions (from 1-5) of the study of the three groups of prepared teeth were compared with the ideal preparation
Measured: Up to 5 weeks
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted10 Mar 2026
- Study start1 Feb 2026
- Primary completion25 Mar 2026 (estimated)
- Study completion25 Mar 2026 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Dental EducationStudies 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
- Parallel groups
- Masking
- Single blind
- Who is masked
- Outcomes assessor
- Enrolment
- 36 participants (estimated)
Sponsor and investigators
- Lead sponsor
- Alexandria University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Hams Hamed Abdelrahman, Alexandria University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07462156
- Sponsor's protocol ID
- 420-2025
- Status last verified
- Mar 2026
- First submitted
- 28 Jan 2026
- Last updated
- 10 Mar 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 10 Mar 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- IntelliPrep: An AI-Driven Digital Self-Assessment Framework for Preclinical Tooth Preparation-A Randomized Controlled Trial
- ClinicalTrials.gov ID
- NCT07462156
- Acronym / sponsor ID
- 420-2025
- Conditions
- Dental Education
- Study type
- Interventional
- Recruitment status
- Recruiting
- Enrolment
- 36 participants (estimated)
- Lead sponsor
- Alexandria UniversityUniversity, hospital or other
- Study start
- 1 Feb 2026 (actual)
- Primary completion
- 25 Mar 2026 (estimated)
- Study completion
- 25 Mar 2026 (estimated)
- First posted
- 10 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 compare traditional faculty-based assessment with two AI-assisted digital self-assessment software programs for evaluating tooth preparations for metal-ceramic crowns for undergraduate dental preclinical students at College of Dentistry El Alamein, AAST in terms of: (1) Accuracy of preparation outcomes, (2) Student learning outcomes over a training period.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Single blind (outcomes assessor)
- Number of arms
- 3
| Arm | Type | Receives |
|---|---|---|
| Digital assessment 1 | Experimental | Other: Non-metrology-grade digital group (NMG) |
| Digital assessment 2 | Experimental | Other: metrology-grade digital group (MG) |
| Conventional assessment | Active comparator | Other: Traditional group (TG) |
Who may qualify
- Ages
- 18 to 20 years
- Sex
- All
- Healthy volunteers
- Not accepted
- Age groups
- Adult
Key inclusion criteria (3 listed)
- Third-year preclinical dental student
- Completion of the fixed prosthodontics tooth-preparation course.
- No prior formal training or use of digital 3D tooth-preparation assessment software.
Key exclusion criteria (3 listed)
- previous repetition of the course
- Substantial prior experience with digital metrology/3D inspection software
- Inability to attend all scheduled training and examination sessions.
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 |
|---|---|---|
| Non-metrology-grade digital group (NMG)Students in NMG used a license-free 3D comparison workflow (Medit Link/Compare, Compare tool; Medit Compare v3.4.9; Medit) to superimpose the prepared-tooth scan (TT-STL) onto the unprepared reference scan (RTS-STL). | Other | Digital assessment 1 |
| metrology-grade digital group (MG)Students in MG used metrology-grade 3D inspection software (Geomagic Control X v2018.1.1; 3D Systems)to superimpose TT-STL onto RTS-STL. Initial Alignment was performed followed by Best Fit Alignment (iterative closest point registration). | Other | Digital assessment 2 |
| Traditional group (TG)Students in TG assessed reduction with a silicone putty index and a periodontal probe across the previously predefined regions. Feedback was provided by experienced instructors (≥5 years of clinical teaching experience) using the same regional assessment approach. | Other | Conventional assessment |
Primary outcome
Change in preparation scores
Time frame: Up to 5 weeks
Preparations were scored with a prespecified 10-item rubric derived from ADEX criteria for mandibular first molar metal-ceramic crown preparation (overall score 0-10). Each item was rated on a 3-level scale (0, 0.5, or 1) and summed to obtain a total score
RMS deviation from the ideal preparation
Time frame: Up to 5 weeks
all the resulting TT-STL files across all sessions (from 1-5) of the study of the three groups of prepared teeth were compared with the ideal preparation
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 10 Mar 2026.
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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.
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Non-metrology-grade digital group (NMG), metrology-grade digital group (MG) and Traditional group (TG) in people with Dental Education, run by Alexandria 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 3 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: looking for participants now, as of the sponsor's last update on 10 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 Mahinour Yousry, PhD (+2 01060080088, dr.mahinour.ahmed@aast.edu), or a site near the patient. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Change in preparation scores (time frame: Up to 5 weeks). The study lists 2 primary outcomes in all. 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 Mar 2026.