“…Secondly, some chronic diseases may indirectly affect oral health, as they can lead to reduced motivation regarding oral hygiene and care. For example, psychiatric [ 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 ] and neurological diseases [ 48 , 49 , 50 , 51 , 52 , 53 ], as well as Alzheimer’s disease [ 54 , 55 ], rheumatic [ 56 ], oncological [ 57 ], and cardiovascular diseases [ 58 , 59 , 60 , 61 , 62 , 63 ], can all have an impact.…”