Nano-Hydroxyapatite

Modern Remineralization for Stronger, Healthier Teeth

A biomimetic mineral technology that helps repair enamel, reduce sensitivity, and support long-term oral health — without fluoride.

What Is Nano-Hydroxyapatite?

Nano-hydroxyapatite (nHA) is a synthetic form of the same mineral that makes up nearly 97% of tooth enamel and 70% of dentin—a naturally occurring structure composed primarily of calcium and phosphate. Because nHA particles are engineered at an extremely small (nano) scale, they can deliver calcium and phosphate directly into microscopic defects within the enamel surface, where natural minerals have been lost..

Scanning electron microscope (SEM) image showing nano-hydroxyapatite crystals integrated into tooth enamel, illustrating biomimetic remineralization at the microscopic level.

How It Works

At the nanoscale, hydroxyapatite particles are small enough to penetrate microscopic enamel pores and early demineralized areas.

Once applied, nano-hydroxyapatite:

  • Binds to enamel and dentin surfaces

  • Fills in microscopic cracks and weak points

  • Restores smooth enamel structure

  • Reduces sensitivity by sealing exposed dentinal tubules

This process is biomimetic — meaning it mirrors how healthy enamel naturally repairs itself when minerals are available.

Nano-Hydroxyapatite vs Fluoride

Fluoride has a long history of reducing cavities by strengthening enamel and inhibiting bacterial activity. Nano-hydroxyapatite offers a different — and complementary — approach.

Key differences:

  • Fluoride strengthens existing enamel

  • Nano-hydroxyapatite helps rebuild and restore enamel structure

  • nHA is non-toxic and biocompatible

  • nHA is safe if swallowed, making it ideal for children and patients with sensitivities

For some patients, nano-hydroxyapatite may be used alongside fluoride, while others prefer it as an alternative based on individual risk factors, medical history, or personal preference.

How We Use Nano-Hydroxyapatite at David R. Rivera, DDS

As a wellness-focused dental practice, we prioritize treatments that support the body’s natural biology.

We may recommend nano-hydroxyapatite as part of:

  • Preventive care strategies

  • Sensitivity management

  • Enamel strengthening protocols

  • At-home remineralization routines

Every recommendation is personalized based on your oral health, saliva quality, bacterial risk, and lifestyle factors.