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Status unknownNCT03229018Updated Jan 25, 2018

Effect of Different Voxel Sizes on Accuracy of CBCT Linear Measurements: Preclinical Study

An interventional study of Voxel size in Cone-Beam Computed Tomography, sponsored by Cairo University. Status unknown at 1 site in Egypt. Per ClinicalTrials.gov, last updated 2018-01-25.

Sponsored by Cairo University · Not applicable, Interventional, and Diagnostic

The sponsor has not verified this record recently (last verified Jan 2018), so the status shown — last known as Not yet recruiting — may be out of date.
Phase
Not applicable
Study type
Interventional
Enrollment
9
Allocation
Not applicable
Sex
All
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Study summary

study target is assessment of the accuracy of linear measurement obtained from CBCT images on 3D volumetric rendering and multiplanar slices with different voxel sizes

Read the detailed description

The real linear measurement will be measured in millimeter (mm) on the mandibles using digital caliper in the chosen areas.

CBCT images will be viewed by OnDemand3D™ viewer software and linear measurements using 2D ruler on multiplanar slices and 3D ruler on 3D volumetric rendering to assess for the dimension in the chosen areas.

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Conditions studied

  • Cone-Beam Computed Tomography
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In context

Lead sponsor

Cairo University is the lead sponsor of 4,780 studies on the registry; 1,427 are open to participants now.

Of its 36 completed or terminated interventional studies of FDA-regulated products, 5 (14%) have results posted.

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

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Who can participate

Ages eligible
Child (0–17), Adult (18–64), Older adult (65+)
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Selection of the human dry mandibles will be independent of age, gender and ethnicity.
  • They should be intact, free from any bone defects, fractures, pathology.
  • Dentate state of the mandibles is not an element in selection criteria; either dentulous or edentulous mandibles are acceptable

Exclusion criteria

Exclusion Criteria:

-

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Study design

Phase
Not applicable
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
9 participants (estimated)

Study arms

  • Other
    voxel size

    200 μm and 300 μm Voxel Sizes

    Diagnostic Test: Voxel size

Interventions

  • Diagnostic testVoxel size

    200 μm and 300 μm Voxel Sizes

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What researchers measure

Primary outcomes

  1. Diagnostic accuracy of linear measurement

    Assessment of the accuracy of linear measurement obtained from CBCT images on 3D volumetric rendering and multiplanar slices with different voxel sizes

    Time frame: 1 year

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Study locations

1 site
  • Cairo university
    Cairo, 11511, Egypt
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References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 25, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT03229018
Lead sponsor
Cairo University
Responsible party
Mohamed Ahmed Mohamed Selim (Master student, Cairo University) — Principal investigator
First posted
Jul 25, 2017
Start date
Jul 2018 (estimated)
Primary completion
Sep 2018 (estimated)
Completion
Sep 2018 (estimated)
Last update
Jan 25, 2018

Study contacts

Mohamed Selim, BDs
Contact
Mohamed.selim@dentistry.cu.edu.eg
+201147703022

Oversight

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

Not currently enrolling

This study is status unknown, as verified in Jan 2018. You cannot join it, but the record below documents what was studied.

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