Journal of Dental Implant Research 2020; 39(3): 29-33  
Unfavorable outcome of a paranasal cosmetic prosthesis caused by dental implants: a case report
Hyunmi Jo, Yeonjin Oh, Bong-Jin Jeong, Junho Jung, Joo-Young Ohe
Department of Oral and Maxillofacial Surgery, Kyung Hee University School of Dentistry, Seoul, Korea
Correspondence to: Joo-Young Ohe,
Department of Oral and Maxillofacial Surgery, Kyung Hee University School of Dentistry, 26 Kyungheedae-ro, Dongdaemun-gu, Seoul 02447, Korea. Tel: +82-2-961-9360, Fax: +82-2-958-9344, E-mail:
Received: September 7, 2020; Revised: September 20, 2020; Accepted: September 21, 2020; Published online: September 30, 2020.
© The Korean Academy of Implant Dentistry. All rights reserved.

This is an open access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creative which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
This article presents an unfavorable outcome of a paranasal cosmetic prosthesis, Medpor, affected by dental implants. It will consist of treatment insight for oral and maxillofacial specialist. The patients had undergone mandibular set-back surgery combined with both paranasal augmentation using Medpor. In due course, dental implants were placed on the anterior maxilla a few years later. The patient suffered from persistent pain and purulent discharge; however, a significant correlation was not observed on the panorama and CBCT. Dental implants were inserted near the Medpor for a paranasal augmentation, having effect on each other, resulting in a clinical symptom. Medpor, as a radiolucent material, was not visible on the dental radiography. Due to its characteristics of bony-like texture and color could mislead the dentists to clinically misjudge a bony structure. Therefore, the dental implant fixtures were inserted near the Medpor. The Medpors on the affected area were infected, thus requiring it to be surgically removed. It indicated that both dental implants and Medpors failed. To avoid an inappropriate consequence of grafting, comprehensive evaluation of patient history and strategic presurgical planning should be obtained.
Keywords: Medpor, Dental implant, Complications

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