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Table 1 Distance between the root apex of the maxillary molars and the MSF

From: Investigating the anatomical relationship between the maxillary molars and the sinus floor in a Chinese population using cone-beam computed tomography

tooth position

n

MBR

DBR

PR

16

200

2.17 ± 3.44

2.36 ± 3.23

2.62 ± 3.52

17

200

1.61 ± 3.37

1.95 ± 3.44

2.91 ± 3.07

26

200

2.31 ± 3.10

2.49 ± 3.47

2.33 ± 3.20

27

200

1.57 ± 3.33

1.90 ± 3.17

2.55 ± 3.10

  1. Tooth position 16 represents the right first molar, 17 represents the right second molar, 26 represents left first molar, and 27 represents left second molar
  2. MBR, the distance between the apex of the mesiobuccal root and the inferior wall of the MSF; DBR, the distance between the apex of the distobuccal root and the inferior wall of the MSF; PR, the distance between the apex of the palatal root and the inferior wall of the MSF. Unit: mm; data are presented as the mean SD