The microbiological effect of virgin coconut oil on the morphological and volumetric dimensional changes of 3D printed surgical guides (in vitro study)

Table 4 Mean, standard deviation (SD) and the results of comparison of CFU counts between the three control and three study groups at different time-intervals from production stage of the surgical guides

Three types of culturing media (Agar plates)			Control Groups (VCO, GA, EA*)	Study Groups (VCO,GA,EA)	p (Between groups)
Blood agar	After 1 day	Mean ± SD	1.80 ± 0.79	0	< 0.001**
	After 1 day	Median (IQR)	2.00 (1.00, 2.25)	0
	After 1 week	Mean ± SD	2.80 ± 1.32	0	< 0.001**
	After 1 week	Median (IQR)	3.00 (1.75, 4.00)	0
	After 2 weeks	Mean ± SD	3.60 ± 2.27	0	< 0.001**
	After 2 weeks	Median (IQR)	3.50 (1.75, 5.25)	0
MacConkey agar			0	0	N/A***
Sabouraud dextrose agar			0	0	N/A***
Percent change after 2 weeks		Mean ± SD	128.33 ± 169.98	0	< 0.001**
Percent change after 2 weeks		Median (IQR)	83.33 (0.00, 225.00)	0
P (Within group)			0.06	N/A***

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