Hydroxyapatite and artificial enamel

Our teeth primarily consist of the mineral hydroxyapatite, renowned as one of the hardest substances in the human body. This mineral imparts strength and resistance to dental enamel, providing protection against acids and bacteria, thereby ensuring strong and healthy teeth. However, hydroxyapatite naturally diminishes over time and cannot be restored by the body. To maintain dental health, Roze BioHealth products offer biomimetic hydroxyapatite, also known as artificial enamel, which adheres to the teeth when used daily.

This article explores the positive effects of hydroxyapatite on oral health and highlights how bionics and biomimetics contribute to protecting teeth from wear, cavities, and inflammation.

Understanding Hydroxyapatite:

Hydroxyapatite is a mineral belonging to the calcium phosphate family, characterized by its exceptional hardness. It is present in both bones and teeth. While bones contain approximately 40% hydroxyapatite, teeth have a significantly higher concentration. In the tooth structure, around 70% of the inner dentin consists of this mineral. Remarkably, the outer enamel is composed of as much as 97% hydroxyapatite, making it the hardest substance in the human body.

Despite its strength, hydroxyapatite in enamel naturally wears away over time and cannot be regenerated by the body.

Factors Affecting Hydroxyapatite:

Although the mineral apatite is highly resistant, it is not impervious to wear. Enamel gradually wears away due to daily chewing throughout one’s lifetime. Additionally, hydroxyapatite undergoes slow degradation in an acidic environment with a pH below 5.5. Bacteria present in our oral microbiome break down sugar, producing acids that contribute to the erosion.

Acidic foods can further amplify this effect, such as fruit juices containing fruit acids or additives in carbonated drinks. Mechanical irritants, such as tooth grinding or aggressive brushing with hard-bristled toothbrushes, can also lead to enamel wear.

Importance of Hydroxyapatite:

Enamel, the outermost layer of the teeth, contains an extraordinarily high concentration of 97% hydroxyapatite. It serves as a protective barrier against bacteria, preventing oral diseases like cavities and tooth decay.

Enamel also seals the dentinal tubules, safeguarding them from external factors. Sensitivity to cold, heat, or sweet/sour foods may indicate exposed dentin and the loss of hydroxyapatite.

Additionally, hydroxyapatite has a cosmetic effect, as its white color enhances the appearance of teeth. While dentin also contains about 70% hydroxyapatite, it appears more yellow in comparison.

Therefore, intact enamel and hydroxyapatite play a crucial role in maintaining naturally white teeth.

Preventing Enamel Wear:

Unfortunately, the body cannot produce hydroxyapatite on its own. However, scientific advancements have enabled the recreation of hydroxyapatite in laboratories and its incorporation into oral care products. With just one layer, bid farewell to enamel wear!

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