Correct position of Jaw?

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mmmanditsdodis
Posts: 3
Joined: Wed Mar 18, 2009 4:07 pm

Correct position of Jaw?

#1 Post by mmmanditsdodis »

This may be a stupid question. What is the natural position, is it the one that feels most comfortable, or the one that lines up the teeth best.

My situation is I can pretty much get my lower to line up with my teeth, however I can hardly pull my jaw "back", but can just it forward. Are most able to just the jaw forward and backwards? Id say the movement range is about 1/2 inch from my uppoer and lower teeth. So at best I have a mild underbite, at worst a significant one.

Sorry for the dumb question.

DireWire
Posts: 95
Joined: Wed Feb 06, 2008 11:12 am

#2 Post by DireWire »

From my limited knowledge, the correct position for the jaw is when upper and lower incisors match/meet exactly. It puts least stress on the jaw joint, preventing undue wear.

DireWire
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UGHBRACES
Posts: 449
Joined: Tue Sep 02, 2008 12:56 pm

#3 Post by UGHBRACES »

Yes its normal to be able to move your lower jaw back and forth. Mine moves more so forward then back.

I believe the proper bite is when your molars meet top to bottom and your lower front teeth meet the backside of your upper front teeth kind of like scissors. So basically the upper front should have a slight vertical overlap of the lowers. I can't remember how much of an overlap is considered acceptable, but i have read it on here somewhere.

UGHBRACES
Posts: 449
Joined: Tue Sep 02, 2008 12:56 pm

#4 Post by UGHBRACES »

Oh and when i say front teeth i am talking about the front 6 on each row.

mmmanditsdodis
Posts: 3
Joined: Wed Mar 18, 2009 4:07 pm

#5 Post by mmmanditsdodis »

No what I meant was regardless of the teeth, I know how they should meet. I mean where should the jaw be, should it be in about the middle of its sliding range? If so the I have an underbite from a large tongue which means my lower teeth and gums have been pushed out during early growth.

I have to have my jaw at the point where it cannot move back further to almost line them up. This gives me a weak jaw and chin. Sliding the jaw to a comfortable resting spot results in an underbite.

mmmanditsdodis
Posts: 3
Joined: Wed Mar 18, 2009 4:07 pm

#6 Post by mmmanditsdodis »

No what I meant was regardless of the teeth, I know how they should meet. I mean where should the jaw be, should it be in about the middle of its sliding range? If so the I have an underbite from a large tongue which means my lower teeth and gums have been pushed out during early growth.

I have to have my jaw at the point where it cannot move back further to almost line them up. This gives me a weak jaw and chin. Sliding the jaw to a comfortable resting spot results in an underbite.

UGHBRACES
Posts: 449
Joined: Tue Sep 02, 2008 12:56 pm

#7 Post by UGHBRACES »

Middle of sliding range?

Not for me. I can barely move it back from where it naturally rests, but i can slide it forward no problem. I believe most people can slide there lower jaw forward so it looks like an underbite.

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