Stylized 3D, vertical 9:16, Pixar cinematic. Two-beat. Beat 1
(mouth-world): the floss (match master_floss_v) pulls the festering
chunk (match master_bact_food_v) out from under the gum, the swollen
lump deflating. Beat 2 (MACRO real): extreme close-up of the real
black floss gliding between tooth and gumline, lifting hidden debris
out, gum calming to healthy pink. REVYLINE readable beat 1. No
on-screen text.
