Evaluation of the efficacy of reciproc and revo - s in preparation of oval root canals using cone beam computed tomography /
Mahmoud Mohamed Abdulbaky
Evaluation of the efficacy of reciproc and revo - s in preparation of oval root canals using cone beam computed tomography / فى تحضير قنوات الجذور البيضاوى باستخدام جهاز الأشعة المخروطى receiproc revo - s تقييم فعالية انظمة النيكل تايتانيوم من نوع Mahmoud Mohamed Abdulbaky ; Supervised Hebatallah Mohamed Maged Elfar , Hani Samy Sadek - Cairo : Mahmoud Mohamed Abdulbaky , 2013 - 106 Leaves : photographs ; 30cm
Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Endodontics
To evaluate the efficacy of revo - S and reciproc R40 NiTi files in preparation of oval root canals using cone beam computed Tomography (CBCT). Forty extracted single rooted premolars were divided into 2 groups (n = 20). Group 1 (R - S) were prepared with revo - S up to size #40 / .06. Group 2 (R40) were prepared to the same size with a single file R40. Pre - and post-instrumentation CBCT scanning was done. Calculated parameters were: increase in canal volume and surface area. Transportation, centering ability, and untouched canal areas were tested at 3, 6, 9 mms axial sections. Statistical analyses were made using Mann-Whitney U and Friedmans test (P 0.05). Significant increase in volume (P = .000 and P = .003 for R - S and R40 respectively) and surface area (P = 0.048 and P = 0.038 for R - S and R40 respectively) was found for both instrumentation kinematics with no significant differences between them. Canals transportation and decreased centering ratio were detected in both groups at all tested levels with insignificant smaller values in the M - D direction. Exception was found at 9mm level where a significantly highest transportation was found in R - S group P = 0.022
Computed tomography Instrumentation kinematics Oval root canals
Evaluation of the efficacy of reciproc and revo - s in preparation of oval root canals using cone beam computed tomography / فى تحضير قنوات الجذور البيضاوى باستخدام جهاز الأشعة المخروطى receiproc revo - s تقييم فعالية انظمة النيكل تايتانيوم من نوع Mahmoud Mohamed Abdulbaky ; Supervised Hebatallah Mohamed Maged Elfar , Hani Samy Sadek - Cairo : Mahmoud Mohamed Abdulbaky , 2013 - 106 Leaves : photographs ; 30cm
Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Endodontics
To evaluate the efficacy of revo - S and reciproc R40 NiTi files in preparation of oval root canals using cone beam computed Tomography (CBCT). Forty extracted single rooted premolars were divided into 2 groups (n = 20). Group 1 (R - S) were prepared with revo - S up to size #40 / .06. Group 2 (R40) were prepared to the same size with a single file R40. Pre - and post-instrumentation CBCT scanning was done. Calculated parameters were: increase in canal volume and surface area. Transportation, centering ability, and untouched canal areas were tested at 3, 6, 9 mms axial sections. Statistical analyses were made using Mann-Whitney U and Friedmans test (P 0.05). Significant increase in volume (P = .000 and P = .003 for R - S and R40 respectively) and surface area (P = 0.048 and P = 0.038 for R - S and R40 respectively) was found for both instrumentation kinematics with no significant differences between them. Canals transportation and decreased centering ratio were detected in both groups at all tested levels with insignificant smaller values in the M - D direction. Exception was found at 9mm level where a significantly highest transportation was found in R - S group P = 0.022
Computed tomography Instrumentation kinematics Oval root canals