PMC9326212_01
Preoperative frontal view of the defect
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F1
A 37-year-old male patient was referred from the Department of Neurosurgery for fabrication of cranial prosthesis for fronto-parito-tempero-occipial defect of the left side [Figure 1].
Final cast and wax pattern
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F2
Scoring of the margins was done within the boundaries of the two markings and additional plaster added to restore the contour of the vault [Figure 2].
Wax patter trial
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F3
The thickness of the wax pattern was kept at approx. 3 mm and when near-perfect contour was achieved, a wax trial was done to evaluate future esthetics [Figure 3].
(a) Processing of polymethyl methacrylate prosthesis conventionally. (b) Finished prosthesis and surgical placement of prosthesis
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F4
The prosthesis was surgically secured at the defect site using mini plates and screws [Figure 4].
Final result after 3 weeks
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F5
Prosthesis rehabilitated the near-original contour of the vault and thus restored the esthetics of the patient [Figure 5].
PMC9326212_02
Preoperative view of case II
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F6
The patient was asked to shave his head and the bony margins of the defect were marked and the conventional moulage impression was made in irreversible hydrocolloid reinforced with plaster [Figure 6].
Final prosthesis with titanium mess incorporated
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F7
The polymerized prosthesis was finished, polished and then holes were drilled into the finished cranial prosthesis [Figure 7].
Final result after 6 months
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F8
The patient was seen 6 months postoperative and was noted to have an acceptable rehabilitation of the defect [Figure 8].
PMC9326212_03
Preoperative frontal view of defect with disfigure implants
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F9
Since the graft obscured the margins of the defect, hence it was not possible to make conventional moulage impression of the defect [Figure 9].
3D Model with defect and Wax pattern fabricated on 3D model
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F10
Then, the dicom data was converted to STL format and 3D printing was done [Figure 10].
Intra operative view (Biopore implant removed and polymethyl methacrylate implant secured in place)
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F11
During the surgical phase, the existing Biopore graft was removed and PMMA graft screwed in place with mini plates and screws [Figure 11].
Postoperative frontal view
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F12
The patient was reviewed after 3 wks to observe a favorable profile of graft and an esthetic outcome of the case [Figure 12].
PMC9326212_04
(a) Digital reconstruction of defect from computerized tomography scan data. (b) 3D printing of model and model with defect
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F13
The data was used to fabricate a 3D digital replica of the defect [Figure 13].
Digital model of restoration of the defect and 3D printer model of restoration
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F14
This restoration was then 3D printed using the same technique [Figure 14].