A digital workflow for fabricating an interim obturator after partial maxillary resection

Elsevier

Available online 2 December 2022

The Journal of Prosthetic DentistryAuthor links open overlay panelAbstract

This article describes a digital workflow for fabricating an interim obturator after partial maxillectomy which utilizes the radiopacity of iodoform gauze, a common surgical packing material, to simulate postoperative oronasal defect cavities through a computer-aided design and computer-aided manufacturing (CAD-CAM) workflow and to generate the interim obturator by 3-dimensional printing. This technique may serve as a promising alternative technique for the fabrication of an interim obturator and, in particular, benefit patients who have not seen a prosthetic specialist before surgery and present without a surgical obturator.

Section snippetsTechnique

A 52-year-old woman, who had not seen a prosthetic specialist before surgery and was not provided with an immediate surgical obturator, presented for a postoperative consultation 3 days after her partial maxillectomy. The following steps describe the digital protocol used for prefabricating an interim obturator utilizing the postoperative CBCT scan data with iodoform gauze packed into the surgical cavity.

1.

Make a CBCT scan (HiRes3D; LARGEV) of the maxillofacial region.

2.

Obtain the 3D morphology of

Discussion

An ideal interim obturator fabrication protocol has not yet been established to achieve an immediate, precise, and comfortable treatment for patients who did not see a prosthetic specialist before partial maxillectomy, and then presented without an immediate surgical obturator. The technique presented has been suitable for such a patient subpopulation. Betadine-impregnated gauze is identifiable on CBCT imaging because of the high density of iodoform solution.9, 10, 11 The presented technique

Summary

A digital workflow is presented for the prefabrication of a hollow interim obturator utilizing the radiopacity of iodoform gauze. This technique may serve as an alternative approach for interim obturator fabrication and, in particular, benefit patients who do not have an immediate surgical obturator after surgery.

Acknowledgments

The authors thank Dr Anan Yin for assistance in laboratory processing and data collection. Ruifeng Zhao and Yu Dong contributed equally to this work.

References (11)

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© 2022 by the Editorial Council for the Journal of Prosthetic Dentistry.

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