From: Evaluation of relationship between endodontic access cavity types and secondary mesiobuccal canal detection
Paired groups
Paired Differences
Mean
Std. Deviation
Sig. (2-tailed)
Pair 1
intact – PEAC
87
34.5
0
Pair 2
intact - CEAC
117
31.3
Pair 3
intact – TEAC
164
43.8
Pair 4
PEAC-CEAC
30
5.5
Pair 5
PEAC-TEAC
77
10.8
Pair 6
CEAC-TEAC
47
12.5