Extraction of carious maxillary roots
(A) If the crown of the upper molar has been lost to caries or has been fractured from the roots, a small envelope incision is reflected, and a small amount of crestal bone is removed. The burr is then used to section the three roots into independent portions. (B) After the roots have been luxated with the small straight elevator, the mesiobuccal root is delivered with the Cryer elevator placed into the slot prepared by the burr. (C) Once the mesiobuccal root has been removed, the Cryer elevator is again used to deliver the distal buccal root. The tip of the Cryer elevator is placed into the empty socket of the mesiobuccal root and turned in the usual fashion to deliver the tooth root. (D) Maxillary root forceps occasionally can be used to grasp and deliver the remaining root. The palatal root can then be delivered with the straight or Cryer elevator. If the straight elevator is used, it is placed between the root and the palatal bone and gently rotated to and fro in an effort to displace the palatal root in the bucco-occlusal direction. (E) The small straight elevator can be used to elevate and displace the remaining root of the maxillary third molar in the bucco-occlusal direction with gentle to-and-fro motio
