Accuracy of Multiple Pour Cast from Various Elastomer Impression Methods

Table 4

The mean measurement values of stone dies, standard errors, and percentage of errors from master cast from polyether impression technique.

Measurement	First pour (1 Hr)			Second pour (12 Hr)			Third pour (24 Hr)			Fourth pour (48 Hr)
	Mean	SD	%	Mean	SD	%	Mean	SD	%	Mean	SD	%
Upper dia-abutment1	9.94	0.08	−0.50	9.86	0.77	−1.30	9.88	0.06	−1.10	9.89	0.05	−1.00	0.012
Lower dia-abutment1	15.56	0.08	−0.44	15.53	0.07	−0.63	15.52	0.07	−0.70	15.55	0.05	−0.51	0.031
Interabutment distance	14.86	0.10	−0.46	14.79	0.21	−0.93	14.76	0.03	−1.13	14.82	0.03	−0.73	0.181
Height abutment1	8.17	0.20	−0.36	8.08	0.18	−1.46	8.11	0.15	−1.09	8.15	0.10	−0.60	0.003