Redefining the non-communicable disease framework to a 6 × 6 approach: incorporating oral diseases and sugars

The WHO Global Oral Health Status Report, published in 2022, highlighted the alarming state of oral health worldwide and called for urgent action by integrating oral health into non-communicable diseases (NCDs) and universal health coverage initiatives. 3·5 billion people have oral diseases, surpassing all other NCDs combined. The detrimental role of sugars as a risk factor for oral diseases and other NCDs has also been well documented. Despite the evidence, oral diseases and sugars are not part of the current NCD framing, which focuses on five diseases and five risk factors (ie, 5 × 5). Oral diseases and sugars remain sidelined, disproportionately affecting poor and disadvantaged populations. In this Viewpoint, we advocate for the integration of oral diseases and sugars into the current approach towards the prevention and control of NCDs. An expanded 6 × 6 framework would recognise growing evidence and would reiterate the need to strengthen action, resource allocation, and policy development for NCDs. We present the evidence and rationale for, and benefits of, an expanded NCD framework and detail recommendations to guide efforts towards improved priority, investment, and equitable health outcomes for NCDs, including oral health.