The most common applications of 3D printing in the dental industry include dental models, orthodontics, metal crowns and bridges, metal brackets, surgical guides, etc. From the early days of DLP technology, which opened the door to the dental market through its low-cost and high-quality features, to today’s simple and easy-to-use chairside solutions that are widely accepted by dentists, orthodontists, and oral surgeons, 3D printing is helping the dental industry complete the process. The transformation from digital production to intelligent production has penetrated deeply into multiple application points, such as dental implants, invisible orthodontics, and surgical guides.
DLP-application in dental industry
DLP printers use DMD (Digital Micro Projection Chip), which is composed of millions of tiny reflectors. Each reflector can be controlled independently and can be tilted to adjust the direction of light projection. The number of mirrors within the DMD determines the printing resolution.
The principle of DLP 3D printing technology is based on the properties of light-curing resin. Before printing begins, DLP cuts the 3D model into many thin layers based on its data. When the printer works, it projects an image onto the photosensitive resin. The image is made up of millions of tiny points of light, each corresponding to a pixel. These tiny spots of light influence the resin, causing it to solidify into the desired shape. Then, the printing platform gradually rises, and printing is repeated layer by layer until the entire model is completed.