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| ID | Type | Description | Link |
|---|---|---|---|
| 2950729 | Other Identifier | faculty of dentistry - Tanta University |
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Two orbital prosthesis were made to the patient , using two different digital scanning methods to restore the unilateral orbital exentration , the prosthetic devices were made using medical silicon material
Statement of problem : Orbital defects which resulted from surgical removal of mucormycosis that caused by corona virus infection lead to several functional, esthetic and psychological problems for the patients.
Aim of the study : Evaluation of the accuracy of fitting surface of orbital prosthesis constructed by photogrammetry scan.
Methods : An orbital prosthesis was made using photogrammetry scanning technique as a method for making digital facial impression to obtain facial 3D model using a high resolution professional camera with image processed through 3DF Zephyr open-source software and the other orbital prosthesis was made using a conventional impression for both the defect and contralateral healthy eye , then scanned with a Degree Of Freedom (DOF) extra oral desktop scanner. 3D models of the defect sites were printed from each scanning method to act as a master cast for the orbital prosthesis fabrication. Accuracy of orbital prosthesis fitting surfaces produced from the two techniques in comparison with a facial scan as a reference scan was assessed through deviation analysis using metrology grade software (Geomagic Control X ).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| 1- photogrammetry scan to the defect and healthy sites | Other | Capture photographs of the face including the defective site by profesional camera |
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| 2- Digital scan of a conventional impression to the defect and healthy sites | Other | Digital scan of a conventional impression to the defect and healthy sites, the impression was taken using silicone rubber impression material, to obtain 3D virtual model using an extraoral desktop scanner. |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Photogramety Orbital Prosthesis | Other | Using 2D photographs to abtain 3D model of orbital defect anatomy |
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| Measure | Description | Time Frame |
|---|---|---|
| Accuracy of fitting surface of orbital prosthesis | Measurements of accuracy: Measuring surfaces mesh deviation between the two orbital prosthesis fitting surfaces obtained using two types of scanning methods and a reference facial scan obtained using creality raptor (CR) scanner.
| Baseline or Day 1 |
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Inclusion Criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Faculty of Dentistry Tanta University | Tanta | Egypt |
for the patient privacy
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| Conventional impression prosthesis | Other | Conventional impression to an orbital defect then scaning the impression using desktop scanner |
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