No tooth brush necessary, grill fits on all teeth.Silicone layer for comfortable wearing.Sizes:S: 9 x 6mmM: 10 x 7mmL: 12 x 8mmMaterial: Brass, rhodium-plated."Smile for me" Wearing instructions: If you are in pain while wearing, do not continue to wear it. 1. Do not wear when sleeping. 2. Do not wear while playing sports. 3. Do not wear when eating or similar (chewing gum, candy, ....). 4. Do not use as braces replacements. 5. If dental treatment is imminent, you should check with the doctor. 6. Do not use the same grill with others. 7. Don't wear very long 8. Never bite people or animals with it.The golden instructions: 1. After wearing, wash with clear water and store in dry areas. 2. Do not clean with chemical agents. 3. After adjusting do not wash directly with hot water. 4. Do not put in the microwave. 5. Do not store in hot places (car, balcony). 6. Keep away from children and animals.Attention: Use Grillz only as jewelry for the teeth. Iced Out Biz accepts no liability for any damage to health or material.