I wonder if the results of this study indirectly also supports this previous study linking oral cancers and oral cavities, proving that higher number of cavitie

I wonder if the results of this study indirectly also supports this previous study linking oral cancers and oral cavities, proving that higher number of cavities results in reduced cancer risk: https://www.webmd.com/oral-health/news/20130912/tooth-cavities-linked-to-lower-risk-of-head-neck-cancer-in-study https://www.webmd.com/oral-health/news/20130912/tooth-caviti...