Research Article

Effects of 16% Carbamide Peroxide Bleaching on the Surface Properties of Glazed Glassy Matrix Ceramics

Table 2

The two-way analysis of variance for microhardness testing.

SourceType III sum of squaresdfMean squareF

Ceramic1564,51811564,5184,1360,053
Surface treatment727,2601727,2601,9220,178
Ceramic  surface treatment4,56014,5600,0120,913