Dental instrument nano coatings use nano-Ag/TiO2/CuO(antibacterial against S.mutans/P.gingivalis)+nano-SiO2/PTFE(ultra-smooth low surface energy,CA>110deg,blocking biofilm reversible attachment)+nano-HA(hydroxyapatite,bioactive osseointegration) constructing multifunctional surfaces. 2025 Advanced Engineering Letters: HA/nano-Ag MAO 200V,1g/L Ag,BIC 65.2%,optimal antibacterial+osseointegration balance. 2026 BMC Oral Health(Vol.26): CNT+1%HA significantly increased BIC and NBA. Peri-implantitis (~10-20%/10yr) is the most important clinical application. ISO 7405:2018,YY 0300,ISO 13485 compliant. Global dental market ~$6.8B(2025),implants fastest-growing(CAGR 9.2%).