The accuracy of gypsum casts obtained from the disinfected extended-pour alginate impressions through prolonged storage times

Table 2 Mean dimensional changes (mm) in different test categories (n = 9 each)

Disinfection protocols (n = 27 each)	Storage time intervals (n = 9 each)	Impression materials (n = 81 each)
Disinfection protocols (n = 27 each)	Storage time intervals (n = 9 each)	G1	G2	G3
SG1	C1	0.12 ± 0.11^A1	0.19 ± 0.04^A1	0.11 ± 0.06^A1
	C2	0.05 ± 0.24^A1	0.15 ± 0.13^A1	0.11 ± 0.06^AB1
	C3	0.11 ± 0.13^A1	0.14 ± 0.04^A1	0.25 ± 0.13^AB1
SG2	C1	0.06 ± 0.09^A1	0.17 ± 0.02^A1	0.16 ± 0.12^A1
	C2	0.20 ± 0.10^A1	0.17 ± 0.17^A1	0.33 ± 0.13^B1
	C3	0.07 ± 0.08^A1	0.24 ± 0.12^A1	0.20 ± 0.06^A1
SG3	C1	0.11 ± 0.10^A1	0.18 ± 0.11^A1	0.15 ± 0.14^AB1
	C2	0.11 ± 0.08^A1	0.08 ± 0.19^A1	0.08 ± 0.04^AB1
	C3	0.18 ± 0.22^A1	0.15 ± 0.08^A1	0.22 ± 0.09^AB1

G1 = Tropicalgin; G2 = Chromaprint premium; G3 = Hydrogum 5; SG1 = No disinfection; SG2 = Spray disinfection; SG3 = Immersion disinfection; C1 = No storage; C2) 72 h of storage and C3) 120 h of storage
Positive (+ve) values of different test categories indicate expansion in alginate impressions
1-Way ANOVA, P = 0.06−E05
Within each column, same superscript letters indicate no difference between test categories within the same test group (Tukey’s, P > 0.05)
Within each row, same superscript numbers indicate no difference between test groups within the same test category (Tukey’s, P > 0.05)

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