Development time, material.
1. Development time: Invisalign was launched in Silicon Valley in the United States in 1997. It is the earliest invisible braces in the world and has a history of 26 years. Angel of the Times was founded in 2001 by Ms. Li Huamin and It was jointly developed by Tsinghua University and Capital Medical University and has a 22-year development history.
2. Material: Invisalign’s diaphragm is made of patented material, which is matte, softer and more comfortable, and has better invisible effect, while Time Angel’s diaphragm is a German-certified polymer material, which is better than Invisalign. The beauty will be slightly harder, and the invisible effect will be slightly inferior to Invisalign.