What happened to his chin?

[GlamGuru]

What exactly happened? It legit got shorter ? But the bone is more visible.

 

[InnerVoid]

PHOTOSHOP

 

[sepsis]

looks like his mentolabial fold became more promient, guessing his lower lip became more protruding and made it look like his chin is shorter
though could also just be bone resorption from extractions

 

[StraightHeadJames]

his jaw shrunk