. Author manuscript; available in PMC: 2012 Dec 1.

Published in final edited form as: Dent Mater. 2011 Oct 6;27(12):1259–1266. doi: 10.1016/j.dental.2011.09.008

Table 4.

Three point flexural strength (σ_f) values for the experimental groups (MPa). Results presented as median (standard deviation), and statistical grouping (n=10).

Materials	One Layer	Two Layers		Three Layers TRI
Materials	One Layer	PT	FT	Three Layers TRI
YZ	861 (92)^a	57.6 (7.6)^e	-----^**	83.0 (9.9)^d
IZ	401 (33)^c	61.2 (9.1)^e	412 (22)^bc	63.5 (11.8)^e
AL	474 (59)^b	65.8 (15.8)^e	414 (88)^bc	63.0 (7.3)^e
VM7	69.8 ± (12.0)^e
VM9	65.5 ± (8.9)^e

Values followed by the same letter are statistically similar (p≥0.05).

^**

Quantitative data from YZ-FT group was not included in the statistical analysis.