“…In all three types of disadvantaged individuals in whom caries experience was compared with the general population, DMFT was higher in socially vulnerable people. Specifically, a greater probability of having a higher DMFT index was found in low-education people (OR 1.40 [95% CI 1.29–1.52], p < 0.05; 6051 participants) [ 57 ], in low-income people (OR 3.7 [95% CI 2.8–4.6], p < 0.05; 1695 participants, two studies, I 2 = 78%) [ 56 , 76 ] and in professionals who sustain an excessive hourly workload (>40 h of overtime) (OR 2.56 [95% CI 1.23–5.33] p = 0.012 to OR 3.01 [95% CI 1.13–7.97] p = 0.027; 950 participants) [ 79 , 80 ]. Moreover, institutionalized elderly people (resident in care homes) showed a higher caries experience than non-institutionalized elderly people with a DMFT 25.4 SD 2.1 ([95% CI 19.9–30.9]; 2608 participants, six studies) versus 16.1 SD 2.1 ([95% CI 11.2–21]; 8276 participants, nine studies) [ 29 , 31 , 34 , 40 , 41 , 44 , 48 , 60 , 61 , 63 , 64 , 81 , 82 ].…”