The distance between the anterior palatal bar and the posterior palatal bar should be greater than

25mm. Because the distance between two adjacent measuring points should be greater than the outside diameter of the pipeline to be measured, but not less than 25mm. When the pressure source assembly and the temperature measuring element are installed on the same pipe section adjacent to each other, the former should be upstream of the latter according to the flow direction of the medium.

Because of the "private order" between the anterior and posterior palatal bars and the products are mostly imported, the cost of invisible appliances is often more expensive than that of fixed appliances. Qiu Jingyi said that for the company, the cost of customization itself is very high, and there are other inputs such as product research and development that need to be recovered.

Extended data

Medical preventive measures between anterior palatal bar and posterior palatal bar;

In recent years, due to the increasing demand for orthodontic treatment between anterior and posterior palates, the number of orthodontists who have received postgraduate training or formal specialist training is increasing, and their work intensity is also great.

"The orthodontic period between the anterior and posterior palates is as long as 1-5 years. Patients usually review, monitor or adjust their treatment plans every month, and doctors need to spend a lot of energy on a patient. " Orthodontists often have to treat hundreds of patients at the same time, and it is common to work overtime and stay up late.