Common Problems


Here are some examples of problems like crowding and sticking out teeth (“a protrusion”) – you may have one of these or a combination two or more. To see more details about the actual treatment, go to “Before and After ”.


Crowding

Crowding occurs when teeth have insufficient room to line up within the jaws.  Mostly the jaws are of a perfectly normal size - there is just an inherited mis-match between the size of the teeth and the size of the jaws.  Crowding is normal and occurs in a high percentage of the population - but you may well want it fixed!
CROWDING.jpg

Protrusion

The appearance and function of your teeth are impacted by upper front teeth protrusion. It is characterized by the upper teeth extending too far forward or the lower teeth not extending far enough forward.
PROTUSION.jpg

Overbite

In an deep overbite, the upper front teeth extend vertically down over the lower front teeth, sometimes causing the lower front teeth to bite into the roof of the mouth.
OVERBITE.jpg

Spacing

Spacing problems may be caused by missing teeth, or they may only be a cosmetic issue.
SPACING.jpg

Underbite

In an underbite, the lower jaw extends out, causing the lower front teeth to sit in front of the upper front teeth.
UNDERBITE.jpg

Openbite

Efficient biting is prevented by an openbite, in which the upper and lower front teeth do not overlap. Openbite may be caused by habits, such as thumb sucking or tongue thrusting.  Otherwise, it is caused by the relationship of the jaws.
OPENBITE.jpg

Crossbite

In a crossbite, the upper teeth sit inside the lower teeth, which may cause the lower jaw to move to the side when biting and is implicated in asymmetric growth of the jaw.
CROSSBITE.jpg

Dental Midlines not Matched

Dental midlines that do not match are evident when the back bite does not fit and match appropriately. This may negatively impact jaw growth and proper dental function.
MIDLINE.jpg

常见问题

这里有一些常见问题如牙齿拥挤和前牙突出等等的例子-你也许有几个问题组合再一起。如果想要了解治疗的细节

请看治疗前后

牙齿拥挤

牙齿拥挤是因为颌骨不够空间让牙齿正常排列。这是由于 牙齿的大小和颌骨的大小不符引起的。牙齿拥挤是一种非

常常见的问题-要不要纠正是取决于每个人的需要。
Crowded Teeth

上前牙突出

上前牙突出会影响牙齿的外观和功能。 它是因为上牙突出 或下牙后缩造成。
protruded teeth

咬合过深

由于上牙咬合过深,有时下牙会咬到上牙后面的牙龈。
overbite teeth

牙齿空隙

空隙有时候由于牙齿缺失造成影响美观。

spaced teeth

反颌

反颌是由于下颌骨突出所致。
underbite teeth

前牙张开咬合

当病人后牙咬合时,前牙之间有空隙。这类病人会有咬合 困难。前牙张开咬合可能因为幼儿时期吸手指或用舌头顶 前牙所致。
openbite teeth

交叉咬合

上面牙齿咬在下面牙齿的里面可能会引起两侧牙弓不对称。
crossbite teeth

上下牙中线不齐

当你后牙咬合不对称前牙上下中线不齐,就会阻止颌骨发 育和影响咬合功能。
midline teeth