|
|
The occlusion is determined by the placement of upper and lower jaws. In a normal
occlusion, the lower front teeth should touch the inner surface of upper front teeth.
One-third of the outer surface of lower front teeth should be covered by upper front
teeth. The outer surface of lower front teeth should be 2mm to 4mm apart from the
inner surface of upper front teeth.
|
|
|
If the upper jaw bone is too big when compared with the lower jaw bone, it results
in 'projected upper teeth'.
|
|
|
However, if the lower jaw bone is bigger than the upper jaw bone, it results in
'reversed bite'.
|