Demineralization of Enamel in Primary Second Molars Related to Properties of the Enamel

Table 1

Mean of depth of lesions (in micrometer) in all specimens, measured in polarized light microscope (POLMI), microradiographs (MRG), SEM, and XRMA images. Appearance of lesions; chalky and rough surface, chalky and smooth surface, and normal color with a smooth surface. Age of the individuals in years when tooth was extracted.

	Depth in mm
	POLMI	MRG	SEM	XRMA	Appearance	Age
1	74	71		57	Chalky and rough	13
2	110	46	58	48	Normal and smooth	13
3	87	82		83	Chalky and rough	5
4	112	49	47	70	Chalky and smooth	5
5	91	40		89	Chalky and rough	5
6	66	44	78	71	Chalky and rough	8
7	57	54	70	75	Chalky and rough	6
8	94	53	51	73	Normal and smooth	5
9	99	99	130	112	Chalky and rough	7
10	56	43		70	Chalky and smooth	7
11	38	25	31	40	Normal and smooth	13
12	74	72		110	Chalky and rough	17
13	87	37		66	Chalky and smooth	6
15	68	59		85	Chalky and smooth	6
16	77	38	46	63	Chalky and rough	3
17	81	73		115	Chalky and rough	6
18	109	75		52	Chalky and smooth	15