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. 2024 Jun 10;10(1):31.
doi: 10.1186/s40729-024-00545-y.

Prosthetic rehabilitation of patients with maxillary oncology defects using zygomatic implants

Davit Mathevosyan  1 , Sergo Hovhannisyan  2 , Karen Mashinyan  2 , Levon Khachatryan  3 , Aram Badalyan  4 , Gagik Hakobyan  5
Affiliations

Prosthetic rehabilitation of patients with maxillary oncology defects using zygomatic implants

Davit Mathevosyan et al. Int J Implant Dent. .

Abstract

Purpose: Prosthetics for patients after oncological resection of the upper jaw is a complex problem associated with the physiological and anatomical separation of the oral cavity and the nasal/paranasal region. This study reports the clinical results of the use of the zygomatic implants for prosthetic rehabilitation in patients with maxillectomy due to upper jaw tumors.

Materials and methods: The study included 16 patients who underwent prosthetic rehabilitation using a zygomatic implant after maxillectomy period from 2021 to 2023. After the tumor was removed, immediate surgical obturators were placed. Main prosthetic rehabilitation was performed 6-12 months after tumor removal, but before that, a temporary obturator was made and used. Six-twelve months after tumor resection, 1-4 zygomatic implants were inserted into the zygomatic bone unilaterally or bilaterally. A total of 42 zygomatic implants were installed, 2 of which were unsuccessful and were removed in 1 patient. The implants were placed using the surgical guide, which was planned and prepared digitally.

Results: No postsurgical complications were seen, and the patients were discharged from the hospital after 7-10 days. The patients were able to return to a normal diet (hard food) after just 7 days following surgery, with no further complaints regarding function or pain, apart from the residual edema caused by the intervention.

Conclusions: The use of prostheses fixed on zygomatic implants in patients with maxillary defects is an effective method of prosthodontic rehabilitation in complex clinical cases after maxillectomy.

Keywords: Maxillectomy; Prosthetic rehabilitation; Upper jaw tumors; Zygomatic implants.

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Conflict of interest statement

The authors declare no competing interests.

Figures

Fig. 1
Fig. 1
Clinical image showing 8 years after maxillectomy of the left side
Fig. 2
Fig. 2
Clinical image showing after installation of implants and multi-unit abutments
Fig. 3
Fig. 3
Radiological images. Postoperative CT after installation of 2 zygomatic implants on the right side and 1 on the left side
Fig. 4
Fig. 4
Radiological images. Postoperative CT after installation of 2 zygomatic implants on the right side and 1 on the left side
Fig. 5
Fig. 5
The final prosthetics
Fig. 6
Fig. 6
A movable window was formed in the palatal part of removable dentures for hygiene
Fig. 7
Fig. 7
Clinical image showing intraoral state before prosthetics
Fig. 8
Fig. 8
Clinical image showing intraoral view after prosthetics
See this image and copyright information in PMC

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