INJECTABLE POLYMER / CERAMICNANO COMPOSITE HYDROGELS AS PULP CAPPING MATERIALS

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IntroductionThe hybridization of polymers and ceramic nanoparticles in injectable hydrogels is a promising advancement in thefield of dentistry. By incorporating hydroxyapatite at nanoparticle level it assures increased mechanical strength andbiocompatibility. This novel approach not only enhances application in pulp chambers with irregular configurationsbut also increases biological activity and thereby stimulating tissue regeneration. The functional adaptability and longterm stability of this material can be transformative in the field of dental materials, offering a wide opportunity toenhance the pulp capping treatment outcomes.AimTo synthesise injectable polymer/ceramic nanocomposite hydrogels and perform their characterisation and evaluationof their potential as pulp capping material.Materials and MethodsThe synthesis of PEG and PVA based hydrogels incorporated with hydroxyapatite nanoparticles were done. Themechanical properties of the same, injectability, in vitro biocompatibility using dental pulp stem cells were done.FTIR, SEM and contact angle analysis were used to characterise the materials.ResultsThe homogeneous dispersion of hydroxyapatite inside the polymer matrix of the synthesized polymer–ceramicnanocomposite hydrogels demonstrated a well-defined nanoscale architecture. The successful integration of theceramic phase into the hydrogel network is confirmed by this structural homogeneity. When evaluated in pulp cavitysimulations, the hydrogels showed outstanding injectability in addition to their structural qualities. They demonstratedgood handling qualities that are crucial for clinical operations by exhibiting easy flowability and adapt to confinedareas.ConclusionsThe best features of both mechanical strength and biocompatibility are incorporated in advanced polymer–ceramicnanocomposite hydrogels. They are of particular interest as possible pulp capping materials because of thiscombination. The practical importance of these hydrogels is exhibited by their optimum synthesis and the beneficialresults seen in several analyses. They demonstrate considerable promise in settings that are similar to practical use,not just limited to theoretical expectations. The ability of these materials to surpass existing restorative dental standardsis what makes them so appealing. They may be crucial in determining the future of dental care due to their versatility,resilience, and capacity to promote regeneration.

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