17.06.2022 | Review Article
To extract or not extract teeth prior to head and neck radiotherapy? A systematic review and meta-analysis
verfasst von:
Ana Gabriela Costa Normando, Maria Eduarda Pérez-de-Oliveira, Eliete Neves Silva Guerra, Márcio Ajudarte Lopes, André Caroli Rocha, Thaís Bianca Brandão, Ana Carolina Prado-Ribeiro, Luiz Alcino Monteiro Gueiros, Joel B. Epstein, César Augusto Migliorati, Alan Roger Santos-Silva, on behalf of the Oral Care Study Group, Multinational Association of Supportive Care in Cancer (MASCC)/International Society of Oral Oncology (ISOO)
Erschienen in:
Supportive Care in Cancer
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Ausgabe 11/2022
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Abstract
Purpose
Teeth with poor prognosis are generally recommended to be extracted prior to head and neck radiotherapy (RT) to reduce the risk of developing osteoradionecrosis (ORN), although controversies have been reported. The present systematic review aimed to determine whether tooth extraction prior to head and neck RT may be associated with a reduced risk of developing ORN compared to dental extraction during or after RT.
Methods
The review protocol was registered in PROSPERO (CRD42021241631). The review was reported according to the PRISMA checklist and involved a comprehensive search of PubMed, Scopus, Embase, Cochrane Library, LILACS, and Web of Science, in addition to the gray literature. The selection of studies was performed in two phases by two reviewers independently. The risk of bias of individual studies was analyzed using the Joanna Briggs Institute checklist for cross-sectional studies, and the certainty of evidence was assessed using the GRADE tool.
Results
Twenty-eight observational studies were included in the qualitative synthesis, which showed substantial heterogeneity regarding the association between the timing of tooth extraction and ORN development. Twenty-seven of 28 studies were pooled in a meta-analysis that demonstrated a significant association between an increased risk of ORN and post-RT tooth extraction (odds ratio: 1.98; 95% CI: 1.17–3.35; p = 0.01).
Conclusion
It was confirmed with moderate certainty that dental extractions should be performed prior to the start of head and neck RT to reduce the risk of ORN.