Novel temperature-sensitive hydrogel-like sealant and lubricant for dental implant system

Abstract

The invention belongs to the field of biomedical technology, and in particular relates to a temperature-sensitive hydrogel-like sealant and lubricant for a dental implant system. The preparation method of the temperature-sensitive hydrogel-like sealant and lubricant is as follows: dissolving chitosan powder in glacial acetic acid to obtain a chitosan solution, and sterilizing the chitosan solutionat high temperature and pressure; dissolving sodium beta-glycerophosphate and povidone iodine in filtered and sterilized tri-distilled water separately to obtain a sodium beta-glycerophosphate solution and a povidone iodine solution; mixing the chitosan solution and the povidone iodine solution, and stirring evenly to obtain a solution A; putting the solution A and the sodium beta-glycerophosphate solution in an ice-water bath simultaneously, then slowly dripping the sodium beta-glycerophosphate solution into the solution A under stirring conditions, fully stirring uniformly the solution in the ice-water bath to obtain a liquid temperature-sensitive hydrogel. The preparation method is simple, low in production cost, and convenient for popularization and use.

Description

technical field [0001] The invention belongs to the technical field of biomedicine, and in particular relates to a novel temperature-sensitive hydrogel-like sealant and lubricant for dental implant systems. Background technique [0002] As an effective way to restore missing teeth, oral implant technology is being used more and more around the world. Compared with traditional restoration methods, it has higher chewing efficiency and more beautiful appearance. However, in long-term clinical practice, complications related to dental implants also occur from time to time, such as peri-implantitis, loosening of implanted dentures, and fracture of implant abutments. [0003] The occurrence of peri-implantitis is mostly related to the accumulation and reproduction of bacteria around the implant. The implant and the abutment are not tightly combined, and there is a micro gap of 2-40 μm between them. Bacteria in the oral cavity can enter the micro-gap to grow and reproduce, secret...

AI Technical Summary

Problems solved by technology

Under normal circumstances, the manufacturers of implant systems used in clinic have specified torque to ensure sufficient preload between the implant abutment, but due to the friction between the interface between the implant and the abutment, the torque cannot be fully converted into Preload, part of the torque is used to overcome the friction, if the friction is too large, it will lead to insufficient preload, thus affecting the stability of the abutment

[0005] In order to improve the stability of implant abutments, most manufacturers start by reducing friction to increase preload, mainly through lubricating coatings to reduce friction between threads, such as Teflon solid coating, etc., but there are literature reports The stability of implants and abutments coated with Teflon solid lubricating coating is not good when they perform functions, which may be related to the low friction coefficient of Teflon coating. After all, friction is also an important factor to ensure the stability of abutments. the elements of

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