Nanotechnology, the engineering of materials at the molecular scale (one-billionth of a meter), has revolutionized science and technology. Derived from the Greek word "Nannos" meaning dwarf, nanotechnology allows us to manipulate and understand the molecular structure of materials. In dentistry, this has led to the development of dental nanorobotics, a highly promising field that utilizes nanomaterials for enhanced diagnosis, treatment, and prevention of oral diseases. Nanotechnology's unique properties, influenced by the "quantum effect," enable a deeper interaction with biomolecules, making it especially useful in early disease diagnosis and genetic analysis. Nanostructures interact with cells at a molecular level, offering potential breakthroughs in both medicine and dentistry. High-resolution microscopes now allow scientists to identify individual atoms, significantly broadening nanotechnology's scope. This powerful technology holds the potential to revolutionize oral healthcare, providing more accurate diagnoses and more effective treatments through the manipulation of materials at the nanoscale.