Table 3: Mean values, standard deviation, deviation of interabutment distances from master model of all the groups

Interabutment distance		Master model				Group 1				Group II				Group III				Group IV
		1-2		2-3		1-2		2-3		1-2		2-3		1-2		2-3		1-2		2-3
Mean (mm)		17.771		17.428		17.83		17.49		17.79		17.46		17.81		17.47		17.65		17.33
Standard deviation						0.004		0.002		0.004		0.0035		0.007		0.005		0.008		0.006
Deviation from master model (mm)						0.057		0.060		0.021		0.032		0.036		0.042		-0.119		-0.096
Deviation from master model (μm)						57		60		21		32		36		42	-119		-96
Percent of deviation						0.321		0.344		0.118		0.184		0.203		0.241		-0.670		-0.551