Table 3.

Amount of Sr0, Sr50 and Sr100 bioactive glass powder (in mg and mg/ml) required to induce a 50% inhibition of cellular metabolic activity in vitro. The equations of the best‐fit curves for the data points in the range 0–80 mg and the R ² values are included

Bioactive glass	Amount	Equation of best‐fit curve	R 2 value
Sr0	40.18 mg	y = –1.198x + 98.134	0.996
	13.39 mg/ml
Sr50	51.49 mg	y = –0.0066x 2 – 0.8154x + 109.48	0.961
	17.16 mg/ml
Sr100	12.42 mg	y = 105.36e –0.06x	0.994
	4.14 mg/ml