Abstract
The purpose of this study was to analyze the long-term success and factors potentially
influencing the success of dental implants placed in patients with head and neck cancer
who underwent radiation therapy with a minimum total dose of 50 Gy during the years 1995–2010. Thirty-five patients (169 dental implants) were included
in this study. Data on demographic characteristics, tumour type, radiation therapy,
implant sites, implant dimensions, and hyperbaric oxygen therapy (HBOT) were obtained
from the medical records and analyzed. Implant survival was estimated using Kaplan–Meier
survival curves. Seventy-nine dental implants were placed in the maxilla and 90 in
the mandible. The mean follow-up after implant installation was 7.4 years (range 0.3–14.7
years). The overall 5-year survival rate for all implants was 92.9%. Sex (P< 0.001) and the mode of radiation therapy delivery (P = 0.005) had a statistically significant influence on implant survival. Age, time of
implantation after irradiation, implant brand and dimensions, and HBOT had no statistically
significant influence on implant survival. Osseointegrated dental implants can be
used successfully in the oral rehabilitation of patients with head and neck cancer
with a history of radiation therapy. Risk factors such as sex and the mode of radiation
therapy delivery can affect implant survival.
Key words
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Article info
Publication history
Published online: February 06, 2018
Accepted:
January 17,
2018
Identification
Copyright
© 2018 International Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.
