Application scope of nano hydroxyapatite (NHAP) toothpaste

1. Remove tooth stain, tartar and dental calculus, and realize non-destructive whitening

Tooth coloring is mostly caused by pigmented bacteria, food or other chemicals. For example, tea, coffee, beverages and tobacco will cause tea spots and smoke spots; Yellow pigment is related to the presence of dental plaque. There are usually three ways to stain the tooth surface:

① The pigment adheres directly to the tooth surface;

② Pigment is contained in tartar or dental calculus;

③ Pigments are bound to the tooth structure, such as tetracycline teeth and fluorosis teeth whose dentin affects the discoloration of enamel.

Hydroxyapatite toothpaste can effectively remove tooth stains caused by the first two tooth surface coloring methods.

Tartar, also known as dental plaque, is a biological film gradually deposited on the surface of teeth. It is composed of food residues, exfoliated oral epithelial cells, saliva and bacteria, which can harden into dental calculi over time. Bacteria in tartar are mainly Streptococcus and anaerobic bacteria that usually exist in the mouth. After the tartar has accumulated to a certain thickness, the bacteria close to the surface of the teeth inside begin to turn into anaerobic breathing because they are isolated from the air. The acid produced here by anaerobic respiration will corrode enamel and further promote the formation of dental caries. The tartar accumulated at the root of the tooth will also stimulate the gums, leading to periodontitis and other periodontal diseases.

Nano hydroxyapatite toothpaste contains nano and micron hydroxyapatite particles. Nano hydroxyapatite has small particle size and large surface area, and has strong binding ability with proteins (bacteria contain proteins) and pigments; Micron hydroxyapatite has excellent friction properties. In the process of brushing teeth, nano hydroxyapatite can effectively adsorb on bacteria, dental plaque and pigments. The friction characteristics of micron hydroxyapatite can work together with toothbrush to more effectively remove tartar on the surface of teeth and reduce tooth stains, dental plaque and dental calculus.

Hydroxyapatite toothpaste can not only remove dental plaque through nano hydroxyapatite, but also repair damaged enamel, restore the mineral density and surface smoothness of enamel, improve the resistance of enamel to dental plaque adhesion and caries, improve the gloss and whiteness of teeth, and realize the whitening effect without damage to teeth.

2. Remove halitosis

Bacteria in the mouth are mainly responsible for halitosis (bad breath). There are a large number of bacteria in human mouth, among which anaerobic bacteria, such as Porphyromonas gingivalis and spirochetes, can produce odor. These anaerobes rely on proteins in food residues and exfoliated tissues in the mouth to survive and multiply, while releasing odors, mainly hydrogen sulfide and methyl mercaptan. Eating smelly food, drinking and smoking can cause halitosis. Local oral pathological factors can also cause halitosis, such as caries, gingivitis, periodontitis, etc. adult chronic periodontal disease is also the main cause of halitosis. Other systemic pathological factors are also the root causes of halitosis, such as diabetes, respiratory tract and digestive tract diseases.

Hydroxyapatite toothpaste can quickly combine with oral bacteria and halitosis chemicals in the process of brushing teeth through the excellent adsorption performance of hydroxyapatite, and then be discharged through mouthwash to clean the mouth.

Hydroxyapatite toothpaste can eliminate halitosis by removing bacteria that cause halitosis, inhibiting harmful bacteria in the mouth, preventing and alleviating periodontal diseases. At the same time, the spices added to toothpaste can also effectively improve breath.

3. Prevent and treat periodontitis, gum bleeding, oral ulcer, tooth loosening and other oral diseases

Periodontal disease and oral ulcer are caused by bacterial infection. Controlling dental plaque and dental calculus at the gum edge is an effective method to prevent periodontal disease. Controlling harmful oral bacteria and maintaining oral hygiene are important measures to prevent oral ulcer.

Hydroxyapatite itself has a certain anti-inflammatory and hemostatic effect. In addition to its effective function of removing dental plaque, dental calculus and inhibiting harmful oral bacteria, hydroxyapatite toothpaste has an excellent effect of preventing and treating periodontitis, gum bleeding, oral ulcer, tooth loosening and other oral diseases. Unlike other toothpastes added with antibiotic drugs, hydroxyapatite is the main mineral component of human bones and teeth, which will not produce drug resistance and has no toxic side effects.

4. Prevention and treatment of allergy

Dentin allergy refers to the symptoms of acid, softness and pain caused by external stimuli, such as cold, hot, sour and sweet, and mechanical effects (biting hard objects). Dentin hypersensitivity is a frequently occurring and common disease in the mouth. The adult incidence rate is relatively high, which is the main cause of toothache in clinic.

Nano hydroxyapatite, with the same mineral composition as enamel and dentin, has good histocompatibility and high affinity with enamel and dentin. It can realize the remineralization and repair of enamel and exposed dentin, prevent the loss of calcium ions, solve the demineralization of enamel and dentin, and form a layer of hydroxyapatite covering layer on the exposed dentin surface to close dentin tubules, Fundamentally alleviate dentin allergy.

5. Prevention and treatment of dental caries

Hydroxyapatite toothpaste (without fluoride) has the same caries prevention function as fluoride toothpaste. Nano hydroxyapatite has been proved to be an effective anti caries ingredient in field trials, which can reduce the new caries of primary school children by 36% - 56% similar to the effect of fluoride. A field experiment on healthy adults in the United States found that nano hydroxyapatite toothpaste can not only inhibit the development of dental caries, but also has no significant difference with fluoride in the ability of remineralization of early dental caries.

Unlike fluoride toothpaste, which prevents dental caries by forming fluorinated apatite on the surface of teeth, hydroxyapatite toothpaste removes dental plaque and repairs damaged enamel through nano hydroxyapatite, restores the mineral density and surface smoothness of enamel, improves the adhesion of enamel to dental plaque and the resistance to dental caries, and improves the gloss and whiteness of teeth at the same time.

Scientific research shows that fluoride can prevent dental caries, but excessive fluoride will lead to problems such as dental fluorosis or skeletal fluorosis. The use of fluoride in foreign oral care products is strictly controlled; Nano hydroxyapatite can not only inhibit the development of dental caries, but also is safe and edible. Hydroxyapatite is a rich source of easily digestible calcium phosphate, which is used in dietary supplements and can be swallowed by children without concern. From children, pregnant women to people with sensitive gums, you can safely use hydroxyapatite toothpaste (fluoride free).

6. Prevention and treatment of complications and sequelae caused by professional treatment methods such as orthodontics and tooth cleaning

In the process of Orthodontics, tooth cleaning (such as tooth washing, whitening) and other professional treatment, inevitable mechanical friction (such as tooth scraping, removal of orthodontic bracket bonding, etc.) will cause damage such as enamel roughness, demineralization or surface cracks; The movement of teeth under the external force of orthodontic brackets will lead to periodontal gum damage. Nano hydroxyapatite toothpaste can fill the enamel cracks, make the rough parts smooth, promote the healing of periodontal and gingival damaged tissues, restore periodontal and gingival health, effectively prevent and treat the complications and sequelae of professional treatment such as orthodontic tooth cleaning, and greatly improve the user experience.