HIGHResearchTier 1
Direct restoration failure after head and neck radiotherapy: prevalence and independent
SourceJournal of DentistryTier 1Peer-Reviewed Research
Originally at sciencedirect.com
Summary & scoring by The Bell Brief (Dr. Jennifer Bell) using the Drill-Down Protocol (Drill-Down Score) — not the original publisher.
Why it matters for dental
Head-and-neck radiotherapy substantially increases the risk of direct restoration failure, which will hit restorative dentists, prosthodontists, and practices that treat oncology patients with higher redo rates, chair time, and cost.
Key points
- Multicenter study of 1,200+ restorations found radiotherapy exposure independently predicted failure (OR ≈ 2.4) after adjusting for caries risk, material type, and operator.
- Median time-to-failure dropped from 4.8 years in non-irradiated teeth to 2.1 years in irradiated teeth; glass-ionomer and composite both showed accelerated deterioration.
- Mixed-effects model identified radiation dose > 50 Gy, xerostomia severity, and lack of fluoride varnish recall as modifiable predictors.
- Findings apply to any practice with post-radiation head-and-neck cancer patients; recommend shorter recall intervals, high-fluoride regimens, and possibly preferring certain materials.
Who should care
SpecialistAcademiaOwner
Read the original on Journal of Dentistry
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