Advantages:
1. Hygienic and convenient: Disposable is its biggest advantage. It can be discarded after use, avoiding the risk of cross infection.
2. High precision: The size and shape of each tray are highly accurate. This helps to make impressions more accurately, thereby improving the accuracy of subsequent dental restorations
3. Mainly plastic material: Usually made of medical grade plastic, this plastic material has good flexibility and certain strength.
4. Non-toxic and harmless: During the production process, it will undergo strict quality inspection to ensure that it meets the safety standards of medical devices and will not cause allergic reactions or other oral health problems.