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orthodontics knowledge

1. Traditional metal dental braces (non-self-ligating)

Non-self-ligating metal braces (rubber band or wire binding)


A. Is the earliest type of dental braces and has rich clinical experience.

B. The price is the cheapest.


A. It’s not beautiful enough.

B. Rubber band or steel wire is needed to fix the supporting groove, which will cause many places where food is easy to be left behind and not easy to be cleaned. It is easy to cause dental caries, and the steel wire is easy to cut the lips, resulting in strong discomfort.

C. The traditional metal receptacle requiring ligation wires has been largely replaced by an improved self-ligating metal receptacle.

2. Metal self-ligating tooth cover

The difference between self-ligating and non-self-ligating brackets is that the non-self-ligating brackets require ligation wire to hold the brackets and the bow wire, while the self-ligating brackets have a ligating device that can directly switch adjusting or fixing the bow wire.

Metal self-ligating dental sleeve (locking device bracket)


A. Improved comfort level, no ligation wires scratching or breaking lips.

B. Correction time is shortened for more than half a year: the locking device reduces the frictional resistance between the wire and the supporting groove, thus speeding up the correction speed.

C. Extension of visiting time: self-ligating braces can be visited every two months, while traditional non-self-ligating braces generally need to be visited once a month (the specific time is subject to the doctor’s advice).

D. Easier to clean, locking device is less likely to residue food.

E. The locking device has automatic protection function: it can release the bow wire automatically when the orthodontic force is too much to bear, so as to avoid tooth damage.

F. It’s a little more expensive than metal non-self-locking, but it’s still among the cheapest braces.


A. Poor aesthetics.

3. Ceramic retainer

The color of ceramic braces is closer to the color of real teeth and more invisible.Ceramic bracket can be divided into self-locking and non-self-locking brackets. Its advantages and disadvantages are the same as metal self-locking and non-self-ligating.

Ceramic non – self-ligating braces

Ceramic self-ligating braces


A. Relatively beautiful appearance, semi-invisible braces.

B. Lined with metal grooves, it helps the wire to slide freely and improves the treatment effect.

C. Avoid oral ulcers very well.


A: It costs more than metal

B. Slightly thick receptacle

4. Invisible braces

Invisible braces are a revolutionary advance in orthodontic technology.From the traditional fixed braces that could not be removed from the teeth, they leapt to invisible braces that could be removed at will.The principle is to use the computer 3D imaging technology to scan and analyze the teeth, design the tooth movement plan, and then make a series of personalized braces for patients through 3D printing technology.

Invisible braces


A. Beautiful and transparent, almost invisible

B. A set of orthopaedic devices can be customized for different patients.

C. Extended return visit period: the return visit can be conducted once every 2 to 3 months (the specific time is subject to the doctor’s advice)


A: It’s quite expensive, slightly more expensive than the metal and ceramics.

B. Slightly slower correction speed: about half a year longer than other braces.

5. Lingual braces

Lingual invisible orthodontic technology is a new orthodontic technology emerging in recent years. In fact, it is to change the metal braces on the lip side to the lingual side and install the brackets on the lingual side of the tooth for orthodontic treatment. It is completely invisible in appearance and even more invisible than the invisible braces.

Lingual braces


A. Strong aesthetics.

B. It can reduce the rate of dental caries.

C. Reduce the likelihood of recurrence and rebound.

D. Avoid possible scratches on oral tissues caused by lateral lip braces.


A. The cost is high, about twice as much as normal orthodontics.

B. Not comfortable enough, may affect the pronunciation, generally need to get used to a period of time.

C. The correction time is about 2-3 months longer than normal orthodontics.

D. The technical level of doctors is relatively high. Because of the complicated follow-up operation on the inside of the teeth, the follow-up visit will take a long time, and there are fewer doctors who can and are willing to do it.


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