Looking at your description of your teeth, I feel that I didn't brush my teeth well. Generally speaking, you can wash your teeth first and clean them first.

1. Can it be corrected to be parallel to the face?

This is basically ok. My situation is similar to yours, except that my upper teeth are a little protruding. At school, my classmates always laughed at my buck teeth ... depressed ... back to the topic, I have changed it for almost a year now, and the effect is still relatively good. Now it's much flatter than before. Buckteeth need to be pulled out. The number of tooth extractions depends on the degree of protrusion of your teeth.

2. There is no influence on the oral cavity during orthodontic treatment, but you must pay attention to oral hygiene, and don't eat anything too hard and sticky, which will be attached when you are ready to be a doctor in the future.

3. The whole tooth will not cause harm to the body, but many hard things can't be eaten, which may affect the nutritional problems, but these are minor problems, but it will be more troublesome to eat.

The length of time, according to your present age, should be one and a half to two years at the earliest. My doctor told me that it will take two years (I am 20 years old) because the teeth and bones of adults are mature, so moving will be slower than when I was a child.

Now it is the choice of braces, and my suggestion is steel. From the point of view of economy, effect and speed, I recommend steel ... the effect of steel is better than that of transparent braces (this is proved by practice, a friend of mine wears transparent braces, but the effect is not as good as mine). Because you emphasize fast, steel is faster than transparent braces, and transparent braces can't be too hard every time.

In addition, on the issue of self-confidence, I used to be like you, but after wearing braces last year, I didn't feel how afraid I was of facing my classmates and friends. Now, I think I smile more brightly than before, and I laugh more heartily. Actually, it's natural to laugh!

I can't give you any advice on correcting the cost. The cost of the revision I made in Shenzhen is estimated to be around 12000.

One more thing, if you want to correct it, hurry up and don't delay, otherwise the older you get, the longer it will take to correct it. I regret wasting my hesitation in the first two years, otherwise I would have taken off my braces long ago ... Alas ... I hope these suggestions can help you.

I wish you happiness!