Accuracy of Linear Measurements of Ultra-low Dose Cone Beam Computed Tomography and Digital Panoramic Radiography

Not Applicable

• Conditions: Cone Beam Computed Tomography
• Interventions: Other: CBCT

• Registration Number: NCT03719235
• Lead Sponsor: Cairo University

Brief Summary

measurements performed directly on dry mandibles will be compared with measurements obtained from CBCT( ultra-low dose) scans and Digital panoramic radiography.

Detailed Description

Mandibular anaesthetic landmarks will be identified on each dry mandible and will be marked using gutta percha.

The ten human dry mandibles will be submitted for:

1. Digital Panoramic Radiography. Panoramic radiographs will be obtained using the SOREDEX CRANEX™ 3Dx unit. The exposure parameters will be 8Ma, 63kVp and 16.4 sec exposure time.

2. Cone Beam Computed Tomography (CBCT). SOREDEX CRANEX™ 3Dx unit will be used in this study. Images will be acquired at a single rotation. SOREDEX® MiniDose parameters will be used. The exposure parameters will be 3.2 Ma, 90kVp and 2.3 sec exposure time to take the advantage of 3D data in dose sensitive cases like children, or reduce the radiation dose for the patient.

The real linear measurements will be measured in millimeter on dry mandibles using digital caliper and will be compared with measurements obtained from both techniques.

Images will be evaluated by two experienced radiologists of ten years of experience. Each one will evaluate the images separately twice with a period of two weeks in-between the two reading sessions. The researcher will measure out the real linear measurements on the dry mandibles using digital caliper.

Study Timeline

• Study Start: 2018-07-10
• Status Verified: 2018-10
• Study First Submitted: 2018-10-22
• Study First Submitted QC: 2018-10-24
• Last Update Submitted: 2018-10-24
• Study First Posted: 2018-10-25
• Last Update Posted: 2018-10-25
• Primary Completion: 2020-07-10
• Study Completion: 2020-09-10

Recruitment & Eligibility

• Status: UNKNOWN
• Sex: All
• Target Recruitment: 10

Inclusion Criteria

• age 10 to 70 years
• no gender nor race predilection
• Either dentulous or edentulous are acceptable.

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Exclusion Criteria

• fractures
• pathology

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
column	CBCT	ultra-low dose CBCT versus digital panoramic radsiography

Primary Outcome Measures

Name	Time	Method
assessment of diagnostic accuracy of linear measurements	within 2 years	measurements made on dry mandibles will be compared with measurements obtained from CBCT scans \& digital panoramic radiography

Trial Locations

Locations (1)

Cairo University; 🇪🇬 Cairo, Egypt