Nanotechnology in toothpaste has gained significant attention for its potential to enhance the efficacy of dental care products. This review discusses the use of various nanomaterials in toothpaste, focusing on their roles in preventing dental decay, remineralizing teeth, reducing hypersensitivity, and improving tooth whitening. Common nanomaterials used in toothpaste include hydroxyapatite (HAP), calcium carbonate, calcium phosphate, sodium trimetaphosphate, sodium hexametaphosphate, titanium dioxide, zinc oxide, silver, and gold nanoparticles, as well as nanemulsions and chitosan nanoparticles. These materials are incorporated into toothpaste to address various dental issues, such as tooth decay, hypersensitivity, and discoloration. HAP nanoparticles are particularly effective in remineralizing enamel and reducing dental hypersensitivity. Calcium carbonate nanoparticles help in reducing plaque and cavities, while calcium phosphate nanoparticles contribute to remineralization and anti-sensitivity effects. Sodium trimetaphosphate and sodium hexametaphosphate are used for their anti-plaque and anti-inflammatory properties. Metallic nanoparticles like titanium dioxide, zinc oxide, silver, and gold are known for their antimicrobial and antibacterial effects. Nanemulsions and chitosan nanoparticles are also explored for their potential in enhancing the stability and effectiveness of toothpaste. Despite the benefits, the safety and long-term effects of these nanomaterials in toothpaste need further investigation. The review highlights the importance of nanotechnology in developing more effective and safer dental care products.Nanotechnology in toothpaste has gained significant attention for its potential to enhance the efficacy of dental care products. This review discusses the use of various nanomaterials in toothpaste, focusing on their roles in preventing dental decay, remineralizing teeth, reducing hypersensitivity, and improving tooth whitening. Common nanomaterials used in toothpaste include hydroxyapatite (HAP), calcium carbonate, calcium phosphate, sodium trimetaphosphate, sodium hexametaphosphate, titanium dioxide, zinc oxide, silver, and gold nanoparticles, as well as nanemulsions and chitosan nanoparticles. These materials are incorporated into toothpaste to address various dental issues, such as tooth decay, hypersensitivity, and discoloration. HAP nanoparticles are particularly effective in remineralizing enamel and reducing dental hypersensitivity. Calcium carbonate nanoparticles help in reducing plaque and cavities, while calcium phosphate nanoparticles contribute to remineralization and anti-sensitivity effects. Sodium trimetaphosphate and sodium hexametaphosphate are used for their anti-plaque and anti-inflammatory properties. Metallic nanoparticles like titanium dioxide, zinc oxide, silver, and gold are known for their antimicrobial and antibacterial effects. Nanemulsions and chitosan nanoparticles are also explored for their potential in enhancing the stability and effectiveness of toothpaste. Despite the benefits, the safety and long-term effects of these nanomaterials in toothpaste need further investigation. The review highlights the importance of nanotechnology in developing more effective and safer dental care products.