J Dent Rehabil Appl Sci.  2018 Dec;34(4):317-323. 10.14368/jdras.2018.34.4.317.

Prosthetic rehabilitation for patient with hemi-maxillectomy: Obturator combined with a hybrid telescopic double crown using friction pin

• Seo JG
• Cho JH

• KMID: 2432368
• DOI: http://doi.org/10.14368/jdras.2018.34.4.317

Abstract

When oral cancer develops in the maxilla, oro-nasal communication occurs after surgical treatment including removal of the primary site. Restoration through an obturator is necessary to prevent food from storing due to non-oral opening, and to ensure proper pronunciation and aesthetic restoration. In this case, the patient was treated with right hemi-maxillectomy due to oral cancer and has residual abutment and poor periodontal support due to the effect of head and neck radiotherapy. The obturator was treated with a hybrid telescopic double crown denture. Reporting a successful prognosis in 18 months of follow-up.

Keyword

oral cancer; maxillecotmy; telescopic double crown removable partial denture; friction pin

MeSH Terms

Crowns*
Dentures
Follow-Up Studies
Friction*
Head
Humans
Maxilla
Mouth Neoplasms
Neck
Prognosis
Radiotherapy
Rehabilitation*

Figure

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  Fig. 1 Initial intraoral photograph and panoramic radiograph. (A) Frontal view, (B) Occlusal view, (C) Panoramic radiograph. Arrow: cervical caries on #22, 23.

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  Fig. 2 Pre-prosthodontic treatment of abutments. (A) Maxillary alginate impression for individual tray, (B) Caries were removed.

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  Fig. 3 Impression of maxillary abutments. (A) Preparation of abutments, (B) Impression taking for inner crowns.

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  Fig. 4 Inner crowns of double crown denture (A) Occlusal view, (B) Inner crown of #11, 21 abutments. Arrow: space for friction pin.

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  Fig. 5 Maxillary impression procedure. (A) Inner crowns were splinted, (B) Open tray modification, (C) After onestep border molding, (D) Pick up impression of inner crown.

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  Fig. 6 VD/CR recording. (A) Maxillary master cast, (B) Recording base fabrication, (C) CR Bite registration.

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  Fig. 7 Wax denture. (A) Wax denture in Articulator, (B) Wax denture try in.

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  Fig. 8 Definitive prosthesis. (A) Inner crown and double crown RPD, (B) Right buccal view, (C) Frontal view, (D) Left buccal view.

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  Fig. 9 18 month follow up check after delivery. (A) Occlusal view of inner crown, (B) Frontal view with denture seated, (C) Panoramic radiograph.

Reference

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