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Table 4 Frequency and percentage of occurrence of each root in each of the three scores (R = right, L = left, 6 = first molar, 7 = second molar, 8 = third molar, mb = mesiobuccal root, db = distobuccal root, p = palatal root)

From: Intrusion of maxillary molar roots into the maxillary sinus in a sample of the Egyptian population using cone beam computed tomography

Tooth Root Score 1 Score 2 Score 3 Total
Count % Count % Count %
R6 Mb 12 54.5 5 22.7 5 22.7 22
Db 11 50 5 22.7 6 27.3 22
P 10 43.5 3 13 10 43.5 23
R7 Mb 7 31.8 2 9.1 13 59.1 22
Db 8 36.4 4 18.2 10 45.4 22
P 9 39.1 3 13 11 47.8 23
R8 Mb 2 14.3 2 14.3 10 71.4 14
Db 4 26.7 3 20 8 53.3 15
P 4 26.7 3 20 8 53.3 15
L6 Mb 7 31.8 6 27.3 9 40.9 22
Db 7 31.8 4 18.2 11 50 22
P 7 31.8 1 4.5 14 63.6 22
L7 Mb 3 13 5 21.7 15 65.2 23
Db 4 17.4 3 13 16 69.6 23
P 8 34.8 3 13 12 52.2 23
L8 Mb 2 15.4 3 23.1 8 61.5 13
Db 3 23.1 4 30.8 6 46.1 13
P 4 30.8 3 23.1 6 46.1 13