Ashibe takes Goma-chan for a dental checkup, but Goma-chan keeps hearing people screaming as they enter the exam room. 
What is going on in there?
When it’s finally Goma-chan’s turn, Ashibe realizes he’s missing...
If it's your bottom tooth, 
you're supposed to throw it on the roof.
إن كان سنّك السفليّ فيُفترض أن ترميه
على السّطح
Die muss man dann aufs Dach schmeißen.
Tíralo hacia el techo.
Tíralo encima del techo.
Il faut la lancer sur le toit !
Se è un dente di sotto, devi tirarlo sul tetto.
Se é o dente de baixo, 
deve jogá-lo no telhado.