“…According to age group, 15 studies assessed OHRQoL among childrens [ 41 , 50 , 53 – 55 , 59 – 62 , 64 , 68 , 70 , 71 , 79 , 80 ], two was in adolescents [ 38 , 56 ], 12 were in elderly population [ 42 , 44 , 45 , 47 , 57 , 63 , 65 – 67 , 76 – 78 ] and 12 were in general population [ 43 , 46 , 48 , 49 , 51 , 52 , 58 , 67 , 72 – 75 ].…”