Abstract

This study investigates the biocompatibility and enamel remineralization potential of titanium-doped phosphate glasses (TDPG), third-generation materials with promising applications in dentistry. The biocompatibility of TDPG paste and its components (TDPG powder and polyacrylic acid liquid) was assessed using human gingival fibroblast cells (hGF) and human dental pulp stem cells (hDPSC). Cell attachment and viability were examined at 1, 3, and 7 days, comparing results with Nupro® Prophy paste and Teethmate, commonly used desensitizers, and positive control cells in normal tissue culture medium. Furthermore, the remineralization potential of these glasses with or without the use of diode laser irradiation on white spot lesions in enamel was explored at 12- and 21-days using Raman Spectroscopy and Field Emission Scanning Electron Microscopy (FESEM). The remineralization potential of TDPG was compared with Nupro® Prophy paste and Teethmate. Furthermore, both sound and demineralized enamel were also used as other controls.Results indicated that cells exposed to TDPG extracts displayed similar morphology and viability to positive control cells. While all tested pastes did not show remineralizing action after 12 days, Nupro® Prophy and Teethmate exhibited such action after 21 days. However, laser application enhanced remineralization potential for all pastes at both time points, with TDPG showing comparable results to Nupro® Prophy paste and significantly higher potential than Teethmate when used with laser at 21 days.In summary, this study reveals the biocompatibility and enhanced remineralization potential of TDPG when combined with diode laser irradiation. These findings signify innovative strides in dental materials and treatment modalities, offering new possibilities for advanced dental applications.

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