Long-term outcomes of dental implants placed in elderly patients: a retrospective clinical and radiographic analysis

Jung Chul Park, Won Sun Baek, Seong Ho Choi, Kyoo Sung Cho, Ui Won Jung

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)


Objectives: The aim of this retrospective study was to determine the clinical and the radiographic outcomes of dental implants placed in elderly people older than 65 years. Materials and methods: In total, 902 implants in 346 patients (age: 65–89 years) were followed up for 2–17 years following the implant surgery. The survival rate of these implants was recorded and analyzed. Changes in marginal bone levels were also analyzed in serial radiographs, and Cox regression analysis for implant loss was performed. Results: The survival rates were 95.39% and 99.98% in the implant- and patient-based analyses, respectively (involving a total of 29 implant failures), and the marginal bone loss at the implants was 0.17 ± 0.71 mm (mean ± SD). The number of failures was greatest in patients aged 65–69 years. The Cox regression with shared frailty analysis showed that implant loss was significantly greater in those aged 65–69 years than in those aged 70–74 years (P < 0.05), and it varied between specific implant systems. Conclusions: Within the limitations of this retrospective study, it was concluded that implant therapy can be successfully provided to elderly patients and that age alone does not seem to affect the implant survival rate.

Original languageEnglish
Pages (from-to)186-191
Number of pages6
JournalClinical Oral Implants Research
Issue number2
Publication statusPublished - 2017 Feb 1

Bibliographical note

Funding Information:
This present research was conducted by the research fund of Dankook University in 2014 (R-0001-27206). We thank Dr. Hoi-In Jung (Oral Science Research Center, College of Dentistry, Yonsei University, Seoul, Korea) for performing the statistical analysis.

Publisher Copyright:
© 2016 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd

All Science Journal Classification (ASJC) codes

  • Oral Surgery


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