Timing of development of osteoradionecrosis post head and neck radiotherapy: does a safe time interval exist for dental extraction?

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17110%2F24%3AA2503AH7" target="_blank" >RIV/61988987:17110/24:A2503AH7 - isvavai.cz</a>

Result on the web

<a href="https://link.springer.com/10.1007/s00066-024-02251-5" target="_blank" >https://link.springer.com/10.1007/s00066-024-02251-5</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/s00066-024-02251-5" target="_blank" >10.1007/s00066-024-02251-5</a>

Result language

angličtina

Original language name

Timing of development of osteoradionecrosis post head and neck radiotherapy: does a safe time interval exist for dental extraction?

Original language description

IntroductionRisk factors for developing osteoradionecrosis (ORN) are well known, but less is known about factors influencing the interval between radiotherapy and the onset of ORN. Also, it is unknown whether there is any specific period post-radiotherapy with a reduced probability of ORN when irradiated teeth require extraction.PurposeThe primary aim of this study was to identify factors influencing the interval in developing ORN in the following subgroups of patients: (1) patients who spontaneously developed ORN, (2) surgical-intervention-related ORN with a particular focus on patients after mandibulectomy. The secondary aim was to attempt to identify a possible time for safer dental intervention after primary treatment.Materials and methodsThe authors retrospectively analysed 1608 head and neck cancer (HNC) patients treated in a single centre. Time intervals were measured from the end of radiotherapy to the development of ORN and further analysed in the subgroups listed above.ResultsIn all, 141 patients (8.8%) developed intra-oral ORN. Median time from radiotherapy to ORN development in the whole cohort was 9 months. Median interval for spontaneous ORN was 8 months, 6.5 months for intervention-related ORN, and 15 months for patients post-mandibulectomy. In patients who required dental extraction preradiotherapy, median interval of ORN onset was 5 months.ConclusionIn our study, a slightly higher proportion of patients with intervention developed ORN earlier in comparison with spontaneous ORN. The period from 12-18 months after radiotherapy was identified as having the highest probability of developing ORN in patients after mandibulectomy. A time for safer dental intervention after primary treatment was not identified.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

30204 - Oncology

Project

—

Continuities

V - Vyzkumna aktivita podporovana z jinych verejnych zdroju

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

STRAHLENTHER ONKOL

ISSN

0179-7158

e-ISSN

1439-099X

Volume of the periodical

—

Issue of the periodical within the volume

10

Country of publishing house

DE - GERMANY

Number of pages

13

Pages from-to

882-894

UT code for WoS article

001254055100001

EID of the result in the Scopus database

2-s2.0-85196770133