Table 1. Customized tri-microscopic scoring criteria for interpretation of macroscopic and microscopic findings of demineralization changes caused by acidic beverages.

Parameters		0	1	2	3
Discoloration		No	Mild	Moderate	Severe
Stereomicroscope	Surface irregularities	No roughness	Mild with grainy appearance	Moderate with craze lines	Severe with chalky/sandstone appearance
Compound microscope	Striae of Retzius	Distinct and regular	Faint and regular	Faint and irregular	Indistinct
	Dentinal tubules	Distinct and continuous	Faint and continuous	Faint and discontinuous	Sparse
Polarizing microscope	Demineralization	Organized	Organized with irregular borders	Disorganized	Disorganized and patchy