Table 2.

Comparison of amount of natural enamel wear against polished lithium disilicate Crowns (Group 2) with enamel wear against natural antagonist (Control Group)

Case number	Group 2 – Polished lithium disilicate crowns			Control group
	Tooth number with crowns	Antagonist tooth number	Enamel wear (μm) against crowns	Natural teeth considered	Mean enamel wear (mm) of natural antagonist
1	36	26	37.94	16.46	20.57
2	46	16	47.31	26.36	40.40
3	46	16	29.07	26.36	35.3
4	16	46	38.00	26.36	41.38
5	36	26	36.05	16.46	28.46
6	26	36	48.09	16.46	35.42
7	27	37	45.09	17.47	37.71
8	37	27	32.05	17.47	36.57
9	16	46	50.07	26.36	33.34
10	36	26	35.6	16.46	28.92
11	46	16	42.19	26.36	30.42
12	46	16	38.32	26.36	40.25
13	26	36	40.56	16.46	42.25
14	36	26	50.64	16.46	35.25
15	16	46	30.05	26.36	32.14