Table 3. Mean of ODs of surviving cells against the combination mouthwash composed with cinnamon and Cajeput essential oils and chlorhexidine gluconate mouthwash at a wavelength of 570 nm.

CHX, chlorhexidine gluconate mouthwash; Concentration 1 (least); Concentration 3 (most) - essential oil combination mouthwash; OD, optical density; IC50, half maximal inhibitory concentration

Compound	OD	Mean OD	Cell viability (%)	Results as observed	IC50 (μg)
Concentration 1 (1.383 mg/mL)	0.221	0.277	96.52	No lysis	No cell death at the highest concentration
	0.300
	0.311
Concentration 1 (1.383 mg/mL) × 2	0.340	0.274	95.36	No lysis
	0.144
	0.338
Concentration 1 (1.383 mg/mL) × 3	0.201	0.272	94.55	No lysis
	0.324
	0.290
CHX (0.2 mg/mL)	0.154	0.217	75.52	No lysis
	0.264
	0.233