Risk factor analysis of dental implants in patients with irradiated head and neck cancer.
By: Joongyo Lee, Jason Joon Bock Lee, In-Ho Cha, Kyung Ran Park, Chang Geol Lee

Department of Radiation Oncology, Yonsei Cancer Center, Yonsei University College of Medicine, Seoul, South Korea.
2022-04-11; doi: 10.1002/hed.27080
Abstract
Background

We investigated dental implant outcomes in patients who had previously received radiotherapy (RT) for head and neck malignancies.

Methods

We reviewed 90 dental implants in 27 patients who received RT for head and neck cancer and received dental implants afterwards. The cumulative implant survival rate (CISR) was calculated. In addition, the implant quality was assessed using "Health Scale for Dental Implants."

Results

The CISR at 3 years was 79.6%. The mean radiation dose at the implant site (Dmean ) was identified as an independent prognostic factor for implant survival. No implant failed if Dmean was less than 38 Gy. Regarding implant quality, dental implants in grafted bone and Dmean were independent risk factors.

Conclusions

Dmean was identified as an independent prognostic factor for implant survival and quality. Dental implants can be safely considered when Dmean is lower than 38 Gy.



© 2022 The Authors. Head & Neck published by Wiley Periodicals LLC.

PMID:35546491






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