Figure 1.
(a) Preoperative micro-computed tomography scan of lingual cingulum access group (b) Postoperative micro-computed tomography scan of lingual cingulum access group (c) Preoperative micro-computed tomography scan of lingual conventional access group (d) Post operative micro-computed tomography scan of lingual conventional access group (e) Preoperative microcomputed tomography scan of lingual incisal straight-line access group. (f) Post-operative micro-computed tomography scan of lingual incisal straight-line access group