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. 2014 Apr 16;15(1):33. doi: 10.1186/s40510-014-0033-1

Table 2.

Two-way ANOVA for bond strength test method, bracket material, and interaction terms according to bond strength data

Source of variation Sum of squares df Mean squares F P value
Bond strength test method (BT)
 845.327
 2
 422.664
 94.436
 <0.001
Bracket material (BM)
 1,273.965
 2
 636.983
 142.322
 <0.001
BT × BM
 15.628
 4
 3.907
 0.873
 0.482
Total 20,659.891 135      

Statistical significant difference at P < 0.05.