Because this method will require more interaction between the patient and the dentist... On the other hand, because they tend not to see any orthodontic appliances on the tooth surface, they don't like ceramic brackets or clear plastic brackets either... For this group of clients **orthodontist in Mashhad** can use lingual orthodontics or hidden orthodontics as a hidden option. The most important advantage of hidden orthodontics is its invisibility.. and the hiddenness of lingual brackets because hidden orthodontic brackets are attached to the inner surfaces of the teeth and there is no trace of hidden orthodontic brackets from the outside.. What are the disadvantages of lingual? Among the disadvantages of lingual brackets, we can mention the possibility of irritation of the tongue tissue and mucous tissues under the tongue. Also, considering that it is more difficult for people to access lingual brackets in the **proper way of brushing** and flossing, there is a possibility that these brackets will cause the brackets to be completely cleaned or removed. Decay in the interdental areas in the long term, and increase the accumulation of plaque and tooth mass around the hidden brackets.. On the other hand, the steps of making and installing these hidden brackets are more complicated than ordinary orthodontics. Because it requires hard laboratory procedures that include molding the teeth, installing brackets in the laboratory on a cast and preparing brackets arranged on a special tray... All these steps can increase the hidden orthodontic tariff in Khorasan, Razavi and Mashhad provinces in 2019... How much does lingual orthodontics cost? The cost of hidden orthodontics is higher than normal orthodontics with steel brackets, ceramic brackets or clear plastic brackets... Of course, this cost can be paid in installments... According to Dr. Najmeh Todrinejad, choosing the type and device used in orthodontics, as well as the right age for closed orthodontics, is an opinion or orthodontic treatment. Orthodontic specialist..