1. Product Advantages

Our high-purity dental grade silica is independently developed for professional dental treatment and premium oral care products. It complies with the ISO 13485 Medical Device Quality Management System, as well as multiple stringent standards including GB/T 32673, FDA and USP Class VI.

The product boasts a purity of over 99.5%, with heavy metal and microbial residues controlled to medical device grade and extremely low endotoxin content, delivering excellent biocompatibility. Its particle size distribution can be precisely customized, and the RDA value covers a full range of 20–250, catering to all dental applications from professional tooth polishing to gentle daily care. With a Mohs hardness of 2.5–3.5, it causes no damage to enamel, dentin or gingival tissues. It features outstanding compatibility with all dental desensitizers, remineralizing agents and adhesives, serving as a core functional raw material for professional dental supplies.

2. Product Specifications

3. Application Scenarios

Specially engineered for professional dental treatment and high-end oral care goods, it is widely used in dental polishing paste, professional whitening gel, desensitizing toothpaste, remineralizing care products and functional fillers for dental adhesives.

• Dental Polishing Paste: Precisely sized particles efficiently remove dental plaque, calculus and extrinsic stains while delivering fine surface polishing to cut down subsequent pigment deposition.
• Professional Whitening Products: Its porous structure carries high-concentration whitening active ingredients to achieve sustained release and targeted stain removal.
• Desensitizing Products: It blocks dentinal tubules and works synergistically with potassium nitrate and other ingredients to relieve dentin hypersensitivity.
• Dental Adhesives: As a functional filler, it improves bonding strength and wear resistance of dental adhesives.

4. Factory Strength

Zhongqi (Guangdong) Silicon Materials Co., Ltd. is a National High-tech Enterprise equipped with exclusive clean workshops for dental grade silica and certified by ISO 13485 Medical Device Quality Management System. We are among the few domestic manufacturers qualified to produce dental-grade silicon materials.

We maintain a Class 10,000 clean production environment, an independent microbial testing lab and dedicated endotoxin testing equipment to realize full-process quality control for dental raw materials. A total of 32 full inspection procedures covering raw material purification to finished product sterilization guarantee the biological safety of every batch. Our professional dental R&D team provides customized development support for dental medical institutions and brands. Our products are adopted by numerous dental clinics and professional dental brands, exported to professional dental markets across Europe and America.

5. Packaging & Delivery

• Standard Packaging: 5/10 kg medical-grade sterile aluminum foil bags packed in outer cartons; exclusive dental packaging specifications available on request.
• Sterile Design: Double-layer medical PE inner liner with vacuum-sealed aluminum foil to stabilize microbial indicators throughout shelf life.
• Storage & Transportation: Store in cool, dry and clean conditions with a shelf life of 24 months. Classified as non-hazardous goods, it supports both cold-chain and ambient-temperature shipping.
• Labeling Standard: Each package is marked with professional labels including dental-grade material classification, medical device standards, batch number and sterilization information. Complete quality traceability documents are provided upon demand.

6. FAQ

Q1: What is the difference between dental grade silica and ordinary toothpaste-grade silica?
A1: Dental grade silica meets medical device standards in purity, heavy metal limits, microbial indicators and endotoxin levels with stricter biocompatibility requirements, plus far tighter control over particle size and abrasion index, which allows direct application in clinical dental products. Conventional toothpaste-grade silica only satisfies daily oral care standards at a relatively lower cost.
Q2: Can dental grade silica be directly used in clinical dental treatment?
A2: Our product is a raw material for dental use, acting as the core ingredient of polishing paste, whitening gel and other dental supplies. Finished products must complete registration and filing in accordance with relevant medical device regulations before clinical application. We supply full sets of raw material quality documents to support customers’ product registration.
Q3: Do you offer customized development for dental products?
A3: Yes. Our dedicated dental R&D team supports formula development and performance testing for clients. We customize particle size, RDA value, pore structure and other indicators based on specific dental application scenarios, delivering full technical support from sample testing to mass production.

7. Certifications & Honors

• ISO 13485 Medical Device Quality Management System Certification
• FSSC22000
• ISO22000:2018
• ISO9001:2015
• SHC HALAL Certification
• OU KOSHER Certification
• FDA Registration
• National High-tech Enterprise Certificate
• Guangzhou Specialized, Refined, Differential & Innovative Enterprise Certificate
• 17 authorized patents granted by the National Intellectual Property Administration of P.R.China