Table 1. Removal torque values (N·cm) according to abutment height and convergence angle.

Abutment height (mm)	Convergence angle (°)			P value
	8	10	12
4	43.2 ± 1.2a,*	38.1 ± 1.5b,*	32.7 ± 1.3c,*	.002
6	47.9 ± 2.6A,†	42.1 ± 0.9B,†	38.9 ± 1.4C,†	.002
P	.016	.008	.008

Different superscripted characters within each row ^{(a, b, c)} and ^{(A, B, C)} and each column (^*, ^†) indicate significant differences by Mann-Whitney U-test (α = .05).