Mathcels gtfih

[Deleted member 21403]

Lets say we have a vertical gonial angle of 115°, and we advance the lower jaw forward by 5mm. How many mms of vertical advancement would you appear to get? Aka how many mms taller would your chin get?

Im interested in the formula to calculate this.

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[Deleted member 15539]

how many do you want? you will do ccw anyway. it wont matter.

 

[5.5psl]

Lets say we have a vertical gonial angle of 115°, and we advance the lower jaw forward by 5mm. How many mms of vertical advancement would you appear to get? Aka how many mms taller would your chin get?

Im interested in the formula to calculate this.

View attachment 2164784​

Believe me if you are that much high IQ just approach girls you will get laid don't cope with surgeries

 

[Deleted member 21403]

how many do you want? you will do ccw anyway. it wont matter.

did you confuse me with someone? I dont know my future movements yet, dont know if ill have ccw or not.

 

[Deleted member 21403]

Believe me if you are that much high IQ just approach girls you will get laid don't cope with surgeries

im very low iq I cant solve this simple math problem

 

[Deleted member 15539]

did you confuse me with someone? I dont know my future movements yet, dont know if ill have ccw or not.

you will have ccw

 

[Deleted member 21403]

you will have ccw

Thats not my jaw nigga. What now

 

[Deleted member 16357]

Lets say we have a vertical gonial angle of 115°, and we advance the lower jaw forward by 5mm. How many mms of vertical advancement would you appear to get? Aka how many mms taller would your chin get?

Im interested in the formula to calculate this.

View attachment 2164784​

Why would your chin look taller? Wouldn’t it just look less recessed? If I was to push forward a block of wood on a table, it wouldn’t change in it’s height.

 

[Deleted member 21403]

Why would your chin look taller? Wouldn’t it just look less recessed? If I was to push forward a block of wood on a table, it wouldn’t change in it’s height.

Yeah but thats because the table in your example is completely straight. If it was angled downwards then it would "gain height".

If your vertical gonial angle was 90 degrees you would get 0 chin height, like in your example. Anything more youre bound to get chin height, even if minimal.

 

[Deleted member 21403]

I think its 2.11mm in this example but it seems a bit too high., would have expected less

sin(115-90°) = sin(25°)

5mm times sin(25°) = 2.11 mms

2.11 mms of chin height gained?

 

[Deleted member 16357]

Yeah but thats because the table in your example is completely straight. If it was angled downwards then it would "gain height".

If your vertical gonial angle was 90 degrees you would get 0 chin height, like in your example. Anything more youre bound to get chin height, even if minimal.

I see, you are pushing the jaw downwards along the angle and not just forward.

h * sin(x-90) is size of change in mm pretty sure then
Where h is mm extended, x is gonial angle

Edit: you already got it so this comment was pointless

 

[Deleted member 21403]

h * sin(x-90) is size of change in mm pretty sure then
Where h is mm extended, x is gonial angle

yeah thats what I got aswell

Pretty important though for anyone lurking here is that you take the vertical gonial angle and not the normal one everyone measures. No ones ramus is completely straight and it will throw off the measurement.

Edit: you already got it so this comment was pointless

actually you put it in a nice looking formula so its good.

 

[Deleted member 21403]

This is actually useful info for anyone doing lj or chin advancement, especially if its a large advancment

From this, you can see if you need any vertical movement done or not.

 

[Deleted member 15539]

Thats not my jaw nigga. What now

Stupid fucking question to ask then lmao