“…From the 37 selected case reports ( Table 2 ), 25 of them had at least one year of follow-up with excellent results in terms of the absence of symptomatology or evidence of bone regeneration [ 35 , 36 , 37 , 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 , 46 , 47 , 48 , 49 , 50 , 51 , 52 , 53 , 54 , 55 , 56 , 57 , 58 , 59 , 60 ]. Eighteen of them were performed with only single-rooted teeth [ 3 , 9 , 38 , 40 , 44 , 46 , 50 , 51 , 52 , 53 , 55 , 58 , 60 , 61 , 62 , 63 , 64 , 65 ].…”