Integration of Nanobioadhesion in Orthodontic Bonding: An In Vitro Study

Abstract

Objectives The objective of this study was to evaluate the ability of the bioactive glass-bonds to inhibit the demineralization surrounding the orthodontic brackets and evaluate the physical and mechanical properties in order to be accepted as an orthodontic bonding agent. Materials and Methods Preparation of mesoporous bioactive glass (MBG) used an improved sol-gel method. The samples were prepared with different surfactant to oil ratio with 12 groups and one control group with six samples each. The debonding characteristics were analyzed using an Instron Universal Testing Machine (UTM). After six months of pH cycling in vitro saliva solution to simulate the oral environment, the microstructure was analyzed using a field emission gun-based scanning electron microscope (SEM). The sample, which is viable in terms of physical and mechanical properties, is converted into a single paste form by addition of resins and compared with the control group Transbond XT adhesive. Results SEM analysis showed that the prepared MBG particles possess spherical morphology. Novel orthodontic bonding material (BG) provides adequate mechanical properties with bond strength of 7.2 MPa ( p = .304) in order to be accepted as an orthodontic bonding agent since its bond strength both at the time of bonding ( p = 1) and after six months ( p = .325) in simulated salivary conditions is in par with conventional bonding resin (TBXT) with reduced demineralization potential. Conclusion This novel adhesive results in reduced demineralization surrounding orthodontic brackets and possesses optimal physical and mechanical properties to be accepted as an orthodontic adhesive.