The Anticaries Effect of a Food Extract (Shiitake) in a Short-Term Clinical Study

Table 2

Quigley-Hein plaque index score (Turesky modification 1970) (mean ± SD) after baseline, the three legs of the crossover (shiitake, placebo, positive control (AmF-SnF₂; Pos Ctrl)) and three washout periods (washout shiitake, washout plaque, and washout positive control) for GOT (𝑛=30). Mean ± SD.

City	Test session
	Baseline	Shiitake	Washout	Placebo	Washout	Pos. Ctrl.	Washout
			shiitake		placebo		Pos. Ctrl.
GOT	2.0±0.9	1.7±0.8	1.8±0.8	1.7±0.8	1.9±0.8	1.6±0.6	1.8±0.8^1

¹Statistically significantly different from the placebo test period (𝑃<0.001, paired samples 𝑡-test).