Whats the ideal forward growth of a jaw in cm?

[Whatashame]

To be precise, or an average

 

[john2]

10-12 cm of your mandible from one side.

 

[ifyouwannabemylover]

 

[Yuno_howitez]

 

[Dystopian]

10-12 cm of your mandible from one side.

 

[newperson]

if u can place minimum 3.5 fingers from ur neck to the end of the chin, thats probably a totally okay forward growth.

 

[Whatashame]

if u can place minimum 3.5 fingers from ur neck to the end of the chin, thats probably a totally okay forward growth.
View attachment 2016281

I can why i still feel like theres too much vertical growth?