Leaving the plan, talking about the revision fee is simply hooliganism. Everyone's oral condition is different, tooth dislocation is different, and the correction difficulty is different. In addition, under the premise of ensuring the correction effect, the price will be different with different correction methods and materials. The usual method is to go to the hospital to take photos, and experts will evaluate the plan and determine the cost. Generally speaking, the cost of each institution will not be much different, mainly depending on the history, experts, equipment, reputation, service and reputation of the institution. Warning everyone not to covet low prices, after all, it is a once-in-a-lifetime thing (no rebound).