Bioactive Antibacterial Modification of Orthodontic Microimplants Using Chitosan Biopolymer

Titanium alloy (Ti6Al4V)-based microimplants are extensively used as anchorage units in orthodontic treatment; however, they have a high failure rate (10 to 30%). This study aimed to enhance the survivability of these small implants by improving their bioactive and antibacterial properties, via modifying their surface with chitosan. For a stable covalent bond, microimplant surfaces were first functionalized with 3-triethoxysilylpropylamine...