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Table 6 Distribution of sizes of normal maxillary incisive canals on CT

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 Male Female
20s 4.3 ± 1.1 3.8 ± 1.4
30s 4.5 ± 1.2 4.2 ± 1.2
40s 4.9 ± 1.2 4.4 ± 0.9
50s 5.1 ± 1.2 4.7 ± 1.5
60s 5.6 ± 1.3 5.7 ± 1.5
70s 6.8 ± 2.0 6.2 ± 2.0
80s 6.6 ± 1.4 6.0 ± 2.3
Total 5.3 ± 1.4 4.5 ± 1.6
  1. CT Computed tomography