. 2023 May 17;93(6):652–658. doi: 10.2319/101722-722.1

Table 4. .

Comparison of LI Between Better Finished and Worst Finished Cases at T1 and T2 by Independent t-Test

	Group	n	Mean (SD)	Mean Difference (mm)	95% CI		P Value
	Group	n	Mean (SD)	Mean Difference (mm)	Lower	Upper	P Value
Upper LI at T1	Better finished cases	18	0.72 (±0.48)	–1.71	–2.070	–1.350	<.001*
Upper LI at T1	Cases finished with deficiency	17	2.43 (±0.58)	–1.71	–2.070	–1.350	<.001*
Lower LI at T1	Better finished cases	17	0.98 (±0.53)	–1.73	–2.230	–1.220	<.001*
Lower LI at T1	Cases finished with deficiency	21	2.71 (±0.91)	–1.73	–2.230	–1.220	<.001*
Upper LI at T2	Better finished cases	18	2.52 (±1.48)	–0.04	–0.861	0.777	.917
Upper LI at T2	Cases finished with deficiency	17	2.56 (±0.76)	–0.04	–0.861	0.777	.917
Lower LI at T2	Better finished cases	17	2.32 (±1.34)	–1.57	–2.760	–0.386	.011*
Lower LI at T2	Cases finished with deficiency	21	3.89 (±2.09)	–1.57	–2.760	–0.386	.011*

Statistical significance.