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. 2022 Jul 4;10(7):1250.
doi: 10.3390/healthcare10071250.

Prognosis of Implants with Implant-Supported Fixed Dental Prostheses in the Elderly Population: A Retrospective Study with a 5- to 10-Year Follow-Up

Tomoyo Takahashi  1 , Masafumi Kihara  1 , Kyosuke Oki  2 , Tatsuya Matsuzaki  2 , Yasunori Ayukawa  1   2 , Yasuyuki Matsushita  1 , Kiyoshi Koyano  3
Affiliations

Prognosis of Implants with Implant-Supported Fixed Dental Prostheses in the Elderly Population: A Retrospective Study with a 5- to 10-Year Follow-Up

Tomoyo Takahashi et al. Healthcare (Basel). .

Abstract

This retrospective study aimed to investigate the survival rate of implants from 5 to 10 years after the placement of implant-supported fixed dental prostheses (ISFDPs) and the management of implant loss in the elderly population. Elderly patients (≥65 years old) who had been treated with ISFDPs and followed up with for at least 5 years between October 2009 and March 2020 were enrolled. Patient profiles and implant-related data were extracted. The survival rate of implants up to 5 years as well as the 10-year cumulative survival rate were evaluated. The management of implant loss and prosthetic interventions were also investigated. In total, 195 patients (mean age: 70.1 ± 4.5 years old) and 687 implants (287 ISFDPs) were assessed. The 5-year survival rate was 99.0% and the 10-year cumulative survival rate was 98.1%. Seven of the eleven implants lost were lost due to peri-implantitis. Only three implants in two patients were placed after the loss of the implants; most were restored using non-invasive procedures. Two patients underwent a conversion from ISFDPs to removable prostheses. This study showed that high survival rates were observed in an elderly population with ISFDPs and that non-invasive procedures were often applied after the loss of an implant.

Keywords: elderly population; implant-supported fixed dental prostheses (ISFDPs); prosthetic intervention; survival rate.

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Conflict of interest statement

One of the authors (K.K.) belongs to the Division of Advanced Dental Devices and Therapeutics, Faculty of Dental Science, Kyushu University. This division is endowed by GC Corporation, Tokyo, Japan. However, GC Corporation had no specific role in this study. The other authors declare no conflict of interest.

Figures

Figure 1
Figure 1
Kaplan–Meier curves of implants in elderly patients with implant-supported fixed dental prostheses.
Figure 2
Figure 2
A case of suprastructure conversion (86 years old at baseline, male): (a) intraoral view with fixed prostheses; (b) panoramic image with fixed prostheses; (c) intraoral view with removable prostheses (implant overdentures); (d) panoramic image with bar attachments for implant overdentures.
Figure 3
Figure 3
A case of suprastructure conversion (70 years old at baseline, female): (a) occlusal view with fixed prosthesis; (b) panoramic image with fixed prostheses; (c) occlusal view with removable prosthesis (implant overdenture); (d) panoramic image with magnet attachments for implant overdenture.
See this image and copyright information in PMC

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