Risk factor analysis of dental implants in patients with irradiated head and neck cancer

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...

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Bibliographic Details
Published in:Head & neck 2022-08, Vol.44 (8), p.1816-1824
Main Authors: Lee, Joongyo, Lee, Jason Joon Bock, Cha, In‐Ho, Park, Kyung Ran, Lee, Chang Geol
Format: Article
Language:English
Subjects:
Bone grafts
Bone implants
dental implantation
Dental implants
Dental prosthetics
Factor analysis
Head & neck cancer
head and neck cancer
implant failure
Radiation therapy
radiotherapy
Risk factors
toxicity
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Summary: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.
ISSN:1043-3074
1097-0347
DOI:10.1002/hed.27080