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Table 2 Number and percentage of the middle mesial canal in mesial roots of the mandibular first molars by age

From: Classification and morphology of middle mesial canals of mandibular first molars in a southern Chinese subpopulation: a cone-beam computed tomographic study

 

< 40

≥ 40

18–29

30–39

40–49

50–59

60–80

Number of specimens/total

63/476

40/442

30/352

17/286

8/194

Incidence

13.24%

9.05%

8.52%

5.94%

4.12%

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BMC Oral Health

ISSN: 1472-6831

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