ClinicalTrials.gg
Not yet recruitingNCT07928869Updated Nov 10, 2026

Evaluation of Intraoral Scanning vs Conventional Impression in Assessing Dental Crowding

An observational study in Dental Crowding, sponsored by Cairo University. Not yet recruiting. Open to participants aged 11 Years to 13 Years. Per ClinicalTrials.gov, last updated 2026-11-10.

Sponsored by Cairo University · Observational

Updated Nov 10, 2026Newly registeredGo to Updates ↓
Study type
Observational
Model
Cohort
Time perspective
Cross-sectional
Enrollment
31
Ages
11 Years to 13 Years
Sex
All
01

Study summary

The purpose of this study is to evaluate and compare the effectiveness and efficiency of Intraoral Scanning (IOS) versus conventional impressions in assessing dental crowding among a group of Egyptian children. Accurate space analysis and crowding assessment are essential for pediatric orthodontic planning. Intraoral scanners offer a digital alternative that may improve patient comfort and reduce procedure time compared to traditional alginate impressions. This observational cross-sectional study aims to provide clinical evidence regarding the validity of digital impression techniques in pediatric dental settings.

Read the detailed description

Dental crowding is one of the most common malocclusions observed in pediatric dentistry, requiring precise diagnostic models for accurate treatment planning and space analysis. Traditional alginate impression procedures often cause discomfort, gag reflexes, and anxiety in pediatric patients. The emergence of intraoral digital scanners (IOS) provides a 3D digital approach that enhances patient acceptance and streamlines diagnostic workflows.

In this cross-sectional study, eligible Egyptian children presenting with dental crowding will undergo both intraoral digital scanning and conventional impression procedures. Dental arch measurements, space analysis, and crowding severity will be assessed using both methods to evaluate agreement, effectiveness, procedure duration, and patient acceptance. The study aims to contribute clinical data on the application and feasibility of digital workflow technologies in pediatric dentistry in Egypt.

02

Conditions studied

  • Dental Crowding

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Keywords

  • Intraoral Scanners
  • Dental Impressions
  • Pediatric Dentistry
  • Space Analysis
03

In context

Crowding

88 studies on the registry are indexed under Crowding; 22 are open to participants now.

This study's planned enrollment of 31 is below the median of 664 across 14 observational studies indexed under Crowding.

Browse Crowding studies →

Lead sponsor

Cairo University is the lead sponsor of 4,941 studies on the registry; 1,458 are open to participants now.

Of its 37 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
11 Years to 13 Years
Sexes eligible
All
Accepts healthy volunteers
No
Sampling method
Non-probability sample

Study population

Pediatric patients attending the outpatient clinics who require space analysis and evaluation for dental crowding.

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  1. Egyptian children aged 11-13 years
  2. Dental crowding ≥ 2 mm in at least one arch, determined by space analysis (arch length discrepancy). Crowding will be calculated as the difference between the sum of mesiodistal tooth widths and the available arch perimeter measured on the diagnostic cast. A discrepancy ≥ 2 mm will be considered
  3. Fully erupted permanent teeth (first molar to first molar)
  4. No previous orthodontic treatment

Exclusion criteria

Exclusion Criteria:

  1. Craniofacial anomalies
  2. Missing or grossly restored teeth
  3. Uncooperative behavior
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Clinically significant

Judged by the study doctor to matter for your health or for the study. It is a doctor’s decision, so ask the study team if you are unsure whether something counts.

05

Study design

Observational model
Cohort
Time perspective
Cross-sectional
Enrollment
31 participants (estimated)
Patient registry
No

Groups and cohorts

  • Dental Crowding Cohort

    Egyptian children presenting with dental crowding who will undergo both intraoral scanning and conventional impressions.

    Device: Introral Scanner · Other: Conventional Alginate Impression

Interventions

  • DeviceIntroral Scanner

    Digital intraoral scanning for dental crowding assessment.

  • OtherConventional Alginate Impression

    alginate impression for dental crowding assessment.

06

What researchers measure

Primary outcomes

  1. Arch Perimeter

    Time frame: At the baseline visit during impression taking

Secondary outcomes

  1. Mesiodistal Teeth Widths

    Time frame: At the baseline visit during impression taking

  2. Dental Crowding

    Time frame: At the baseline visit during impression taking

07

Study locations

No study locations are listed for this record.

08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

1 registry update since Sep 25, 2026
Registered
First appeared on the registry. No changes since
Nov 10, 2026
Show all 1 update
  1. Nov 10, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

10

Registry details

Key details

Study ID
NCT07928869
Lead sponsor
Cairo University
Responsible party
Abdulrhman Elsadek (Master's Candidate in Pediatric Dentistry, Cairo University) — Principal investigator
First posted
Nov 10, 2026
Start date
Jan 2027 (estimated)
Primary completion
Jul 2027 (estimated)
Completion
Sep 2027 (estimated)
Last update
Nov 10, 2026

Study contacts

Abdulrhman Mohamed Elsadek, Master's Candidate
Contact
abdulrhmanelsadek98@gmail.com
+201552599878

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is not yet recruiting, as verified in Nov 2026. You cannot join it, but the record below documents what was studied.

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Discussion

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