11
Jan
Dental: What Is The Difference Between An Openbite And An Overjet?
Filed Under (Orthodontics) by admin on 11-01-2010
Tagged Under : Between, Dental, Difference, Openbite, Overjet, What
What’s the difference between and OPENbite and an Overjet?
I’m 19, can orthodontics alone fix either of these problems?
Do these conditions have anything to do with the appearance of a receding chin? How can you tell if you have a receding chin?
thanks!
1. An Openbite is a condition where your front teeth don’t meet. Instead they remain open while you are biting down all the way:http://www.ohsu.edu/sod/ortho/images/ope…
That is very common condition in persons who suck their thumb.
Openbite can exist in the back area to provided there is a pattern of sucking onto something that displaces the teeth accordingly.
2. Overjet, on the other hand, refers to the horizontal overlapping of the teeth.
Normally, the top front teeth overlap the bottom front teeth by a few millimeters.
Anything way more than that or way less than that is abnormal:http://www.orthobydesign.com/images/over…
That is measured horizontally.
In layman’s term, that is the degree by which the top front teeth are ahead of the bottom front teeth.
Overjet is true for the back teeth as well.
3. In the area where you have an Openbite, Overjet will be zero.
4. There can be reverse (or negative) overjet also, that leads to crossbite.
In that case, the top front teeth will be overlapped by the bottom front teeth, instead of the other way around.
5. You can have a receding chin when the top teeth are too protruded, causing way more than the normal overjet.
As a result, the bottom jaw / mandible will look too deficient from the side (profile).
So, you can determine that from the profile and also from a Cephalogram.
It is called a Class II Occlusion, and person is said to have a “Bird Face”:http://images.google.com/imgres?imgurl=h…
Yes, yes it can… (can i have best answer?)