The upper teeth always fell out. I tried different settings, layer height 0,12 and 0,16mm but without success.
I then made the gaps between the teeth smaller (or the teeth bigger) with meshmixer and it worked. The jaw was easy to open.
Print Settings
Printer brand:
Creality
Printer:
Ender 3 Pro
Rafts:
No
Supports:
No
Filament brand:
PLA
Filament material:
PLA