Table 3.

Comparison between mean retentive force of test groups (α = 0.05)

(I) cement	(J) cement	Mean difference (N)	Standard error	Significant	95 % Confidence interval
					Upper	Lower
PAN	UNA	−196.106	12.898	0	−227.191	−165.02
	UNH	−45.771	12.898	0.002	−76.856	−14.685
UNA	PAN	196.06	12.898	0	165.02	227.191
	UNH	50.335	12.898	0	119.249	181.42
UNH	PAN	45.771	12.898	0.002	14.685	76.856
	UNA	−150.335	12.898	0	−181.42	−119.249