6 results about "Root surface" patented technology

This invention relates to the field of biomaterials, specifically to the application of an acidic hydrolysate of a giant salamander mucus extract in the preparation of a root surface treatment agent. The root surface treatment agent comprises a product obtained by reducing lyophilized powder of salamander skin secretions with an acidic solution at a concentration of 0.2-0.3 mol / L and a pH of 1-5, wherein the mass ratio of the lyophilized salamander skin secretions to the acidic solution is (1-3):1; the resulting root surface treatment agent, after adjustment with an alkaline solution, has a pH of 6-6.5. This root surface treatment agent demonstrates significant potential in promoting natural tooth replantation and restoration, with effects including promoting early load stabilization through natural wet bonding, assisting in the construction of a regenerative microenvironment through active proteins, and promoting adhesion between periodontal ligament stem cells and the matrix by enhancing adhesion signal expression.

The invention discloses an electric periodontal curettage device with a resistance sensing function and a control system of the electric periodontal curettage device, and relates to the technical field of periodontal disease treatment instruments. The electric periodontal curettage device with the resistance sensing function and the control system of the electric periodontal curettage device with the resistance sensing function comprise a host, a curettage mobile phone and a foot switch, one side of the host is connected with the curettage mobile phone through a power line, and the other side of the host is connected with the foot switch through a power line. Resistance change of the working head in the periodontal scaling process is sensed in real time through the vibration sensor, vibration spectrum and current fluctuation are analyzed in combination with an intelligent algorithm in the host, a tartar attachment area and a healthy tooth root face are accurately recognized, tooth damage caused by excessive scaling is avoided, local illumination is provided by the LED lamp beads, the operation view definition is improved, and the working efficiency is improved. And personalized treatment requirements are met by matching with a replaceable working head. The system displays the sensing information on a display screen in real time to assist doctors in mastering the treatment progress, so that the operation safety and efficiency are improved.

The present application provides a kind of dental implant and dental implant restoration system, dental implant includes the neck, middle and root that are sequentially interconnected, the neck is columnar, with diameter D1;The middle is conical, with maximum diameter D2, the middle surface is equipped with middle outer thread;The root is columnar, with diameter D3, the root surface is equipped with root outer thread;And D1, D2, D3 The value size satisfies: D2 has greater than the maximum value of D1, D3, can improve the initial stability of implant.The present application is particularly suitable for the alveolar bone condition of insufficient bone mass or osteoporosis by the unique implant shape design and matching drill system, can significantly enhance the initial stability of implant, reduce the risk of implant loosening, thereby effectively improve the success rate of implant.

Methods are disclosed for treating periodontal disease, peri-implantitis, or to preserve a tooth socket in a subject. These methods include selecting a subject with periodontal disease, peri-implantitis, or in need of tooth socket preservation; and locally administering into the periodontium of the subject a therapeutically effective amount of a tissue-nonspecific alkaline phosphatase (TNAP) polypeptide, or a nucleic acid molecule encoding the recombinant TNAP polypeptide. Methods are also disclosed for i) promoting alveolar bone regeneration in the subject; ii) increasing attachment of a periodontal ligament to a root surface of a tooth in the subject; iii) increasing cementum formation; and / or iv) increasing mineralization in a tooth in the subject. Pharmaceutical compositions are also disclosed that are of use in these methods.

A method for securing an elongate rod to a spinal fixation structure having a receiver and a threaded closure. The method includes providing the elongate rod, the receiver, and the closure. The closure includes a thread form having a stab flank, a loading flank, an outer crest surface with a crest height, and a root surface. The thread form also includes a base height that is greater than the crest height.