Volume 23, Issue 5 pp. 758-768
ORIGINAL ARTICLE

Long-term effects of sinus membrane perforation on dental implants placed with transcrestal sinus floor elevation: A case–control study

Won-Bae Park DMD

Won-Bae Park DMD

Private Practice in Periodontics and Implant Dentistry, Seoul, South Korea

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Yeek Herr DMD

Yeek Herr DMD

Department of Periodontology, Periodontal-Implant Clinical Research Institute, School of Dentistry, Kyung Hee University, Seoul, South Korea

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Jong-Hyuk Chung DMD

Jong-Hyuk Chung DMD

Department of Periodontology, Periodontal-Implant Clinical Research Institute, School of Dentistry, Kyung Hee University, Seoul, South Korea

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Seung-Il Shin DMD

Seung-Il Shin DMD

Department of Periodontology, Periodontal-Implant Clinical Research Institute, School of Dentistry, Kyung Hee University, Seoul, South Korea

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Ji-Young Han DMD

Corresponding Author

Ji-Young Han DMD

Division of Dentistry, Department of Periodontology, College of Medicine, Hanyang University, Seoul, South Korea

Correspondence

Ji-Young Han, Division of Dentistry, Department of Periodontology, College of Medicine, Hanyang University, 222-1 Wangsimni-ro, Seongdong-gu, Seoul 04763, South Korea.

Email: [email protected]

Hyun-Chang Lim, Department of Periodontology, Periodontal-Implant Clinical Research Institute, School of Dentistry, Kyungheedaero 23, Dongdaemoon-gu, Seoul 02447, South Korea.

Email: [email protected]

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Hyun-Chang Lim DDS

Corresponding Author

Hyun-Chang Lim DDS

Department of Periodontology, Periodontal-Implant Clinical Research Institute, School of Dentistry, Kyung Hee University, Seoul, South Korea

Correspondence

Ji-Young Han, Division of Dentistry, Department of Periodontology, College of Medicine, Hanyang University, 222-1 Wangsimni-ro, Seongdong-gu, Seoul 04763, South Korea.

Email: [email protected]

Hyun-Chang Lim, Department of Periodontology, Periodontal-Implant Clinical Research Institute, School of Dentistry, Kyungheedaero 23, Dongdaemoon-gu, Seoul 02447, South Korea.

Email: [email protected]

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First published: 12 August 2021
Citations: 6

Abstract

Background

There is a little comparative data on implants placed transcrestally with/without sinus membrane (SM) perforation.

Purpose

To compare the clinical and radiological outcomes of implants with maxillary sinus perforation and those without SM perforation.

Materials and methods

Among 560 transcrestally placed implants in 324 patients, the patients who underwent cone-beam computed tomographic radiography (CBCT) were included. The following groups were established: implants with SM perforation (group P) and implants without SM perforation based on postoperative panoramic radiographs and patient records (group NP). Group NP was further divided into subgroups based on CBCT taken at the last patient visit: group NP1 consisting of implants with no protrusion or <1 mm of protrusion and group NP2 consisting of implants with ≥1 mm of protrusion. Mixed linear regression was performed for the factors affecting SM thickening and marginal bone loss. Mixed survival analysis was also performed.

Results

A total of 379 implants in 221 patients were eligible. The mean follow-up period was 112.03 ± 54.2 months. Twenty-six implants failed (2 and 24 implants in groups P and NP, respectively), mainly due to peri-implant bone loss. No statistically significant difference was noted between the groups in SM thickness (2.4 ± 2.8 mm, 2.1 ± 3.4 mm, and 2.5 ± 3.5 mm in groups P, NP1, and NP2, respectively, p > 0.05). Marginal bone loss in group NP1 was significantly greater than that in the other groups. In the mixed model, SM perforation was not a determinant of sinus membrane thickening and implant survival in the mixed models and the survival analysis, respectively.

Conclusions

SM perforation in transcrestal sinus augmentation did not affect implant survival and SM thickening.

CONFLICT OF INTEREST

The authors declare that there is no conflict of interest that could be perceived as prejudicing the impartiality of the research reported.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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