Determining the Methods to Improve the Colour Stability and Structural Durability of Maxillofacial Prosthesis Material Using Nanomaterials An In Vitro Study

Abstract

ABSTRACT newlineThe problem encountered in the maxillofacial silicone prosthesis include discoloration of the prosthesis, deterioration of physical and mechanical properties, and the relatively short service lifetime of the prosthesis, depending on the patient s habits, the climate, and the environment. newlineAim and objective: The aim of the study is to determine the methods to improve the color stability of silicone elastomers , by protecting against the UV rays. newlineMaterials and methods: newlinePhase I: Level 1 nanoparticle synthesis(Ag, Tio2) newlineLevel 2 nanoparticle characterisation newlineLevel 3 biocompatibility tests newlinePhase II: newlineLevel 1- Preparation of silicone sample newlineMaxillofacial silicone elastomer and Red pigment newline newlineLevel 2- Preparation of Nanoparticle Medium for Coating newlinePrepared stock of dispersions of Ganoderma capped Ag NPs, TiO2 NPs and AGTiO2 NCs newline newlineLevel 3 Dip Coating Method and characterization newline1.Infra-red dryer newline2.Scanning electron microscope newline3.Energy-dispersive X-ray spectroscopy newline4.Fourier Transmission IR newlinePhase III: Weathering process and colour stability assessment newline1.Glass house cabinet newline2.Weatherometer (Q-SUN XE- 2 Xenon test chamber, USA) newline3.Scanning Electron Microscopy newline4.Energy-dispersive X-ray spectroscopy newline5.Double beam spectrophotometer newlineResult: newlineThis interprets that titanium di oxide nanoparticle coated group shows improved colour stability after 500 hours of natural and artificial weathering when compared with no coating group, silver coating group, silver titanium dioxide composite coating group. Surface changes were seen in all the groups of natural and artificial weathering through SEM analysis with and without the use of NANOCOATING at 500 hours. newlineConclusion: newlineThe outcome of this present study is to make the prosthesis undergo less color change and extend their efficacy and use without any change in the mechanical properties of the silicone and the ease of use for the clinician to coat the existing prosthesis with nanoparticles in a cost-effective way and improve the longevity of the prosthesis.