Use of Artificial Neural Network in Determination of Shade, Light Curing Unit, and Composite Parameters’ Effect on Bottom/Top Vickers Hardness Ratio of Composites

Table 10

Dependency analysis of inputs.

Neural network inputs			R
Composite	Shade	Curing Unit	Upper 1	Upper 2	Upper 3	Lower 1	Lower 2	Lower 3
X	X	X	0.7487	0.7890	0.7721	0.7674	0.7674	0.7674
X			0.2207	0.2191	0.2497	0.2654	0.2655	0.2654
	X		0.1299	0.0680	0.1493	0.1795	0.1795	0.1795
		X	0.4459	0.4808	0.5126	0.3927	0.3927	0.3928
X	X		0.2080	0.1702	0.2501	0.2452	0.2452	0.2452
X		X	0.6222	0.6549	0.6642	0.6494	0.6494	0.6494
	X	X	0.1039	0.0875	0.1538	0.2444	0.2444	0.2443