Nanotechnology has significantly impacted the field of conservative dentistry and endodontics, introducing innovative approaches to diagnostics, treatment, and preventive measures. At the forefront of this revolution is the application of nanomaterials, which operate at the nanoscale, offering distinct advantages in terms of enhanced mechanical properties and targeted therapeutic effects.In the realm of diagnostics, nanotechnology has facilitated the development of advanced imaging techniques that provide unparalleled precision in detecting early-stage dental issues. Nano-sized contrast agents and sensors enable clinicians to identify subtle structural changes, allowing for proactive intervention and more effective treatment planning.When it comes to treatment, nanomaterials have revolutionized restorative dentistry by improving the properties of dental materials. Nano-composites, for instance, exhibit superior strength, durability, and aesthetics compared to traditional materials. This translates to longer-lasting dental restorations with reduced risk of fractures or wear.Nanoparticles also play a crucial role in the realm of endodontics.