Table V.

Mean coverage error and standard deviations (SD) of color difference of shade guide systems in different age groups (n=72)

Age Groups	Guide	Coverage Error	SD
18-29	3 guides combined	4.2	3.3
	Chromoscop	5.8	3.9
	Vita 3D Master	4.3	3.3
	Vita Lumin	5.4	3.4
30-39	3 guides combined	3.7	3.3
	Chromoscop	5.0	3.6
	Vita 3D Master	3.9	3.3
	Vita Lumin	5.1	3.4
40-49	3 guides combined	3.2	1.3
	Chromoscop	5.0	2.6
	Vita 3D Master	3.4	1.3
	Vita Lumin	4.8	1.7
50-59	3 guides combined	3.6	2.2
	Chromoscop	5.5	3.3
	Vita 3D Master	3.8	2.2
	Vita Lumin	5.3	2.5
60-85	3 guides combined	3.9	3.6
	Chromoscop	5.2	4.2
	Vita 3D Master	4.3	3.7
	Vita Lumin	6.3	4.1