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

Published in final edited form as: Dent Mater. 2011 Mar 8;27(6):509–519. doi: 10.1016/j.dental.2011.01.006

Table 3.

Flexural strength (σ, MPa) and modulus (E_f, GPa) characterization of nanogel-modified TEGDMA resin and composite formulations

Nanogel fraction, wt%	Resin^*				Composite^#

	Non-reactive nanogel		Reactive nanogel		Reactive nanogel

	σ	E_f	σ	E_f	σ	E_f
0	111 (9)^a	2.0 (0.2)^a	111 (9)^a	2.0 (0.2)^a	124 (16)^a	6.4 (1.7)^a
5	120 (3)^a	2.0 (0.1)^a	113 (5)^a	1.8 (0.1)^a	141 (20)^a	6.3 (0.8)^a
10	118 (7)^a	1.9 (0.1)^a	109 (3)^a	1.8 (0.1)^a	130 (9)^a	6.7 (0.4)^a
20	89 (7)^b	2.0 (0.1)^a	109 (5)^a	2.0 (0.1)^a	115 (7)^a	6.6 (0.5)^a
30	62 (5)^c	2.3 (0.2)^a	103 (4)^a	2.0 (0.1)^a	120 (4)^a	5.8 (0.9)^a
40	43 (8)^d	2.2 (0.3)^a	104 (3)^a	2.0 (0.1)^a	117 (6)^a	6.8 (0.7)^a

^*

Means with parenthetic standard deviation. Lower case letters indicate statistical differences within a column (Tukey’s test, α=5%).

^#

Composite formulations with fixed barium glass loading (70 wt%) and varied nanogel contents.