Development of High Speed and High Accuracy 3D Dental Intra Oral Scanner

摘要

3D digitization technology, commonly known as Intra oral scanning method is a modern approach than traditional impression methods in dentistry. Utilization of 3D digitization results in accurate mapping of oral cavity and eliminates number of procedures for making dental prosthesis. This paper unveils design of 3D dental oral scanner with software integration is proposed for high speed and accuracy. The main parts of the system are Intra-Oral Scanning (IOS) hardware, CPU and display monitor. The IOS hardware is designed using non-contact optical technologies based on the principle of confocal laser scanner microscopy results in high speed scanning. The light intensity is detected by photo-detection device, transforming the light signal into an electrical one which is recorded by a computer and can be reconstructed. The software is designed using merging of active triangulation method, surface reconstruction and Image processing tools, results in high accurate 3D image of oral cavity, which will be displayed on the monitor screen.