Fig. 2

Extraction of maxillary impacted third molar in Class B located in the none-buccal position of the second molar. 3D reconstruction of maxillary teeth by software of DeepCare Dental AI, showing that the long axis of tooth 18 was palatally inclined (a). CBCT showed that the IMTM was mesioangular (b). The IMTM was impacted (c), Greater palatine nerve block (d), and posterior superior alveolar nerve block were given (e). The incision of the flap begins at the maxillary tuberosity and extends as far as the distal aspect of the second molar, continuing palatally along the cervical lines of the last two teeth, and ending at the medial aspect of the first molar. The mucoperiosteal flap was elevated to expose the impacted tooth(f). The fissure bur was used for bone guttering to reduce the distal and palatal bone resistance (g). After the bone resistance was removed (h), the tooth was luxated by dental elevator(i), and removed by dental forceps(i). The socket was assessed for any oroantral communication prior to wound closure (k)