HomeHealth Specialties The most important in RCT is seal.. Apical 1/3 publisher :NIL NAM -June 26, 2017 The most important in RCT is seal: a. Apical 1/3. *** b. Middle 1/3. c. Cervical 1/3. Labels Health Specialties Facebook Twitter Share:The most important in RCT is seal.. Apical 1/3 Facebook Twitter WhatsApp Pinterest LinkedIn Reddit Tumblr Telegram Email