Abstract: An assisted guidance and navigation method in intraoral surgeries is a method using computerized tomography (CT) photography and an optical positioning system to track medical appliances, the method including: first providing an optical positioning treatment instrument and an optical positioning device; then obtaining image data of the intraoral tissue receiving treatment through CT photography, precisely displaying actions of the treatment instrument in the image data, and real-time checking an image and guidance and navigation. Therefore, during the surgery, the existing use habits of the physicians are not affected and accurate and convenient auxiliary information is provided, and attention is paid to using the treatment instrument in physical environments such as a patient's tooth or dental model.

Abstract: An investigation and control device of a drive system is provided, which controls a power source of a surgical instrument by using a device for drive investigation and control, where the device for drive investigation and control receives a signal of the device for guide positioning and controls, according to a tracked connection state of the device for guide positioning and the surgical instrument, whether the surgical instrument is driven; and a control panel on the device for drive investigation and control electrically connects an device for instrumentation switch sensing and at least one practice model sensing device, so that the device for drive investigation and control controls, according to whether the instrumentation switch or/and the practice model is/are positioned correctly, whether the surgical instrument is normally driven, thereby completely and correctly controlling a correspondence between the surgical instrument and peripheral devices.

Abstract: An investigation and control device of a drive system is provided, which controls a power source of a surgical instrument by using a drive investigation and control device, where the drive investigation and control device receives a signal of the guide positioning device and controls, according to a tracked connection state of the guide positioning device and the surgical instrument, whether the surgical instrument is driven; and a control panel on the drive investigation and control device electrically connects an instrumentation switch sensing device and at least one practice model sensing device, so that the drive investigation and control device controls, according to whether the instrumentation switch or/and the practice model is/are positioned correctly, whether the surgical instrument is normally driven, thereby completely and correctly controlling a correspondence between the surgical instrument and peripheral devices.

Abstract: An assisted guidance and navigation method in intraoral surgeries is a method using computerized tomography (CT) photography and an optical positioning system to track medical appliances, the method including: first providing an optical positioning treatment instrument and an optical positioning device; then obtaining image data of the intraoral tissue receiving treatment through CT photography, precisely displaying actions of the treatment instrument in the image data, and real-time checking an image and guidance and navigation. Therefore, during the surgery, the existing use habits of the physicians are not affected and accurate and convenient auxiliary information is provided, and attention is paid to using the treatment instrument in physical environments such as a patient's tooth or dental model.

Abstract: A method includes: (1) providing a system for virtual reality simulation of local dental anesthesiological techniques and skills training; (2) building an operator injecting process by using the system for virtual reality simulation of local dental anesthesiological techniques and skills training; (3) digitalizing the operator injecting process by using the system for virtual reality simulation of local dental anesthesiological techniques and skills training; (4) comparing the digitalized data and a standard needle-penetration process, and digitally displaying the difference between the digitalized data and standard needle-penetration process through the display unit; (5) calculating the digitalized data of the difference between the digitalized data and the standard needle-penetration process to obtain an analysis result by using the data processing unit of the system for virtual reality simulation of local dental anesthesiological techniques and skills training; and (6) outputting the analysis result and di