Selection of 1-mm venting or 2.5-mm screw access holes on implant crowns based on cement extrusion and retention capacity

Table 1 Excess cement weight (ΔW [mg]) of the anterior and posterior teeth groups with different hole designs

					95% confidence interval for mean
	N	Mean	Std. dev	Std. error	Lower bound	Upper bound	Min	Max	F	P	Intergroup comparison
Group A (ANH)	9	18.96	0.64	0.21	18.47	19.44	19.8	18.0	3667.949		AB: p < 0.001 AC: p < 0.001
Group B (AMH)	9	1.78	0.41	0.14	1.46	2.09	2.4	1.2		p < 0.001	BA: p < 0.001 BC: p = 0.053
Group C (ARH)	9	1.30	0.41	0.14	0.98	1.61	2.0	0.8			CA: p < 0.001 CB: p = 0.053
Group D (PNH)	9	14.87	0.36	0.12	14.59	15.14	15.3	14.3	5043.616		DE: p < 0.001 DF: p < 0.001
Group E (PMH)	9	1.51	0.40	0.13	1.21	1.82	2.0	1.0		p < 0.001	ED: p < 0.001 EF: p < 0.001
Group F (PRH)	9	0.82	0.22	0.07	0.65	0.99	1.3	0.6			FD: p < 0.001 FE: p < 0.001

ISSN: 1472-6831