Composite surface roughness and color change following airflow usage

BMC Oral Health

Table 3 Correlation of surface roughness change with color parameters

Correlation of surface roughness with group	L*	a*	b*	∆E
Airflow with calcium carbonate	0.08	− 0.694	− 0.18	− 0.534
Airflow with sodium bicarbonate	0.335	− 0.543	− 0.415	− 0.282
FlexiDisc	0.351	− 0.743	− 0.412	− 0.649

L* for perceptual lightness, and a* and b* for the four unique colors of human vision: red, green, blue, and yellow

ISSN: 1472-6831