J Dent Rehabil Appl Sci.  2020 Dec;36(4):282-288. 10.14368/jdras.2020.36.4.282.

Radiation prosthetic stents applied to oral cancer patients during the radiation therapy: case reports

• Nam KY

• KMID: 2512123
• DOI: http://doi.org/10.14368/jdras.2020.36.4.282

Abstract

Radiation prosthetic stent is defined as the customized oral devices which serve for an efficient administration of radiation dose to the affected areas or a minimizing the unnecessary irradiation to surrounding normal tissues during maxillofacial cancer radiotherapy. Since the use of stents is individualized, a close collaboration among radiotherapist, surgeon and prosthodontist is essential thereby which helps in limiting the post-therapy morbidity as well as the stable oral rehabilitation. In this report, two customized stents (bolus carrier and tongue depressing) were fabricated and applied to patient undergone irradiation for soft palate and tongue carcinoma selectively. Multidisciplinary approach can be a proper strategy and recommended for control the sequel of post-irradiation.

Keyword

multidisciplinary approach; oral cancer; radiation prosthetic stents; radiotherapy

Figure

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  Fig. 1 Pre-radiotherapy state of soft palate SCC in patient 1 (A). Designation of wax relief for bolus deposit on master cast (B). Tissue surface of stent with hollow space for bolus (C). Commercial tissue bolus (Bolus, BOLXTM, Klarity, USA) (D).

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  Fig. 2 Gel bolus (arrow) packed in relief space within stent for irradiated spot (A). Polished surface of stent with retentive wire clasp (B). Cephalometric view on simulation (C). Postoperative healing state after 6 months follow up (D).

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  Fig. 3 Bolus-carrier of transparent PMMA A B type in patient 4 (A). Try- in on simulation (B).

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  Fig. 4 Clinical aspect of patient 5 with right tongue SCC (A), Wax rim assessment for amount of ballooning and vertical dimension with radiotherapist (B), Try in state with 25 mm of vertical dimension increased and depressed tongue during radiation (C).

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  Fig. 5 Ventilation holes for airway patency in patient 6.

Reference

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