Efficacy and Safety of Tetrahydrocurcuminoids for the Treatment of Canker Sore and Gingivitis

Figure 1

Structures of tetrahydrocurcuminoids (all the THCs exist as a mixture of keto and enol forms. Only the keto form is shown here). (a) THC. (b) THDMC. (c) THBDMC.

(a)

(b)

(c)