Table 3.

3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide assay values of Osteoblast cell line cells on matrices treated and not treated with periostin

Periostin	MTT absorbance at 570 nm	Membrane	Mean±SD	P
Cells not treated with periostin	Day 2	ACS	0.06±0.004	<0.001
		NcHC	0.01±0.006
	Day 5	ACS	0.08±0.008	0.001
		NcHC	0.02±0.008
	Day 7	ACS	0.10±0.009	0.001
		NcHC	0.04±0.006
Cells treated with periostin	Day 2	ACS	0.07±0.005	0.001
		NcHC	0.01±0.009
	Day 5	ACS	0.11±0.009	<0.001
		NcHC	0.02±0.009
	Day 7	ACS	0.15±0.008	<0.001
		NcHC	0.05±0.006

P≤0.05% is considered significant. MTT – 3-(4,5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide; ACS – Absorbable Collagen Sponge; NcHC – Nanocrystalline hydroxyapatite collagen; SD – Standard deviation; P – Probability