In most industrialized countries, there is a general trend that individuals retain more teeth into advanced ages. As gingival recessions often occur during aging, the root surfaces of these retained teeth are often exposed to the oral cavity, which increases the risk for caries development. Consequently, the root caries prevalence is high in older individuals & the demand for root caries management strategies can be expected to increase in the near future. Given the difficulties in moisture control and accessibility, and with dentin being the sole adhesive substrate, restorative treatment of...