6 results about "Oral soft tissues" patented technology

The invention relates to the technical field of intelligent electric protector control, and discloses an electric toothbrush automatic start-stop control method based on oral cavity multi-sensor fusion and a toothbrush, the method comprises the following steps: collecting proximity sensing and ambient light illumination signals, and switching to an active detection mode when the signals accord with oral cavity darkroom characteristics; then the motor is controlled to generate micro-amplitude vibration, and the load damping characteristic quantity of the motor phase current and the optical-mechanical coupling coefficient obtained through demodulation by using the detection frequency are extracted; when it is judged that the load damping characteristic quantity and the optical-mechanical coupling coefficient both exceed a set threshold value, it is confirmed that effective contact is established between the brush head and oral soft tissue, and a motor is controlled to be started and enter a normal operation mode; and during operation, the ambient light change rate is monitored in real time, and the motor is controlled to stop when the shift-out action is recognized. According to the invention, through a multi-dimensional physical contact verification mechanism, false start splashing and invalid idling in a non-oral environment are effectively prevented.

This invention discloses a teeth whitening product containing piezoelectric materials. The invention uses piezoelectric materials with a piezoelectric effect as the whitening ingredient in the teeth whitening product. By contacting the teeth with the whitening product and applying pressure to the tooth surface, the piezoelectric properties of the material are activated, generating a large number of active groups that degrade stains on the tooth surface, achieving teeth whitening. The teeth whitening product of this invention is safe and non-toxic, the teeth whitening method is simple to operate, it does not damage oral soft tissues, nor does it damage the enamel layer on the tooth surface, it does not harm the tooth structure, and it can achieve long-lasting and effective teeth whitening results.

This invention relates to the fields of biomedical engineering and regenerative medicine, and particularly to a plasma matrix composite membrane activated by autologous keratinized epithelial tissue fragments, its preparation method, and its applications. The composite membrane is obtained by mixing autologous keratinized epithelial tissue fragments with a liquid autologous plasma matrix in a specific ratio, utilizing tissue factors on the surface of the tissue fragments to trigger platelet activation, spontaneously forming a gel, and then pressing it into a membrane. This invention is the first to utilize the biointerface of autologous keratinized epithelial tissue fragments to activate platelets, eliminating the need for exogenous thrombin and achieving completely autologous in-situ gelation. The composite membrane formed after pressing possesses excellent mechanical properties and barrier function, and can be prepared in a single operation in the operating room without the need for in vitro cell culture. The composite membrane of this invention is used for oral soft tissue augmentation, such as widening of keratinized gingiva and alveolar ridge soft tissue augmentation, and has advantages such as no donor site damage, high biosafety, and ease of operation.

This invention relates to a gradient elastic modulus sports protective brace, its preparation method, and its application. The gradient elastic modulus sports protective brace includes at least an impact-resistant layer, a buffer layer, and an adhesive layer with a segmented or continuous gradient distribution of elastic modulus. The adhesive layer is used to adhere to the tooth surface and oral soft tissues, and to help disperse residual impact energy. The buffer layer surrounds the adhesive layer and is used to disperse impact energy. The impact-resistant layer surrounds the buffer layer and is used to resist external impact loads and guide energy inward. The elastic modulus of the impact-resistant layer is greater than that of the buffer layer, and the elastic modulus of the buffer layer is greater than that of the adhesive layer. Compared with existing technologies, this invention, through its gradient elastic modulus distribution design, achieves progressive absorption and effective dissipation of impact energy by the sports brace, significantly reducing the peak force on the user's teeth and periodontal tissues during impact, thereby improving overall protective performance and making it suitable for sports scenarios of varying intensities.

This invention discloses an intelligent denture modeling device based on oral scan data, relating to the field of dental prosthesis modeling. This device, by setting a light refraction acquisition component for emitting blue light at the end of the scanner and a bite plate on the mounting tube, allows the patient to bite down on the bite plate and exert force when collecting oral data. This puts the oral soft tissues in a stressed state, and the light refraction acquisition component at the front end, in conjunction with the scanner, captures the soft tissue displacement under the biting force, obtaining the patient's oral data under the stressed state. This helps medical personnel obtain functional pressure impressions and improves the accuracy of denture fabrication.