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Table 3 Distribution of shapes on CT axial sections in normal and cystic maxillary incisive canals

From: Advocacy of diagnostic criteria for maxillary incisive canal cysts based on alteration of normal maxillary incisive canals according to aging in Japanese populations

Age group Oval Round Heart Others
Male (Normal canals) Female (Normal canals) Patients (Cystic canals) Male (Normal canals) Female (Normal canals) Patients (Cystic canals) Male (Normal canals) Female (Normal canals) Patients (Cystic canals) Male (Normal canals) Female (Normal canals) Patients (Cystic canals)
20s 13 12 2 11 13 3 6 5 2 2 3 1
30s 11 9 2 7 8 1 5 4 1 2 2 0
40s 3 3 2 6 3 0 4 3 0 3 2 0
50s 5 3 3 3 3 3 2 2 1 1 1 1
60s 2 3 5 3 3 2 3 3 0 3 0 1
70s 3 4 3 4 1 2 2 3 1 2 1 0
80s 5 3 1 3 3 2 2 0 1 2 2 0
Total 42 37 18 37 34 13 24 20 6 15 11 3
  1. CT Computed tomography