Abstract
The objective of this study was to perform a systematic review and meta-analysis to determine the impact of dental care on head and neck (H&N) cancer survival. A comprehensive literature search was performed using PubMed, MEDLINE, and CINAHL to find all relevant studies from the date of inception to March 2020. Systematic review was performed using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, and meta-analysis was performed using the random effects logistic regression model. Primary outcomes of interest were 5-year survival and hazard ratios comparing survival between dental care subgroups. H&N cancer survival rates strongly correlate with dental care adherence. Patients with good dental care had significantly better survival than patients with poor dental care (HR=0.67, 95% CI: 0.55-0.83), with similar improved survival among patients with moderate versus poor dental care (HR=0.67, 95% CI: 0.57-0.80). In addition, patients with good dental care had significantly decreased mortality than those with moderate dental care (HR=0.81, 95% CI: 0.69-0.96), indicating an exposure-response gradient. For patients with H&N cancer, survival is significantly higher in those who receive recommended dental care compared with those who do not. NA Laryngoscope, 132:45-52, 2022.
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