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Case Reports
. 2017:2017:2595036.
doi: 10.1155/2017/2595036. Epub 2017 Oct 3.

Unusual Etiology and Diagnosis of Oroantral Communication due to Late Implant Failure

Rabah Nedir  1 , Nathalie Nurdin  1 , Marion Paris  2 , Marc El Hage  3 , Semaan Abi Najm  4 , Mark Bischof  3
Affiliations
Case Reports

Unusual Etiology and Diagnosis of Oroantral Communication due to Late Implant Failure

Rabah Nedir et al. Case Rep Dent. 2017.

Abstract

Oroantral communication (OAC) rarely occurs long after implant placement. The present report describes the rare etiology and the difficulty of the diagnosis of an uncommon OAC occurring 10 years after the implant placement in the posterior maxilla. The difficulty of the diagnosis lies in the absence of clinical symptoms of sinusitis and presence of multiunit prosthesis hiding implant failure. This case report supports the need for sinus check-up during a routine implant examination.

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Figures

Figure 1
Figure 1
Placement of implants, panoramic radiographs. (a) Initial situation, (b) immediately after implant placement in sites 23, 24, and 25, and (c) 7 months later, immediately after implant placement in sites 25 and 26.
Figure 2
Figure 2
Ten years after implant placement. (a) Periapical radiograph, (b) clinical view, flap at site 25, and (c) cone-beam computed tomography image. Note the opacity of the left sinus.
Figure 3
Figure 3
The implant 25 was removed and the bridge was rescrewed. The patient underwent antibiotic treatment. (a) Periapical radiograph and (b) clinical view.
Figure 4
Figure 4
Six months after the removal of the implant 25. The cone-beam computed tomography image revealed that the opacity of the left sinus was still present.
Figure 5
Figure 5
The oroantral fistula was closed with a buccal advancement flap. (a)–(d) Clinical views.
Figure 6
Figure 6
Two months after the closure of OAF. (a)-(b) Clinical views. The oroantral fistula remained successfully closed. (c) Cone-beam computed tomography image. The left sinus was totally healed.
Figure 7
Figure 7
Two years after the closure of OAF; the radiographic control showed a stable crestal bone level.
See this image and copyright information in PMC

References

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