The Da Vinci Dentistry

Unschooled in art, uncouth, that's what you'll say of me; I've tried and tried so hard, but I still have to see da Vinci's Mona Lisa mythic, mystic smile bewitching folks allegedly even from a mile. It seems to me she parts her lips quite daintily to let a drunken hiccup out quite gracefully or stop a vulgar burp, hyperacidity, or hide those nicotine-blackened teeth artfully. But truth to tell, nothing in her mouth's symmetry remotely resembles a smile with mystery; perhaps, she's toothless, some dental deformity, believe you me, I took up ortho-dentistry!