Calcium is scientifically validated as an essential mineral for the development and maintenance of healthy teeth. The majority of the tooth structure, particularly enamel and dentin, is composed of hydroxyapatite, a crystalline structure that includes calcium and phosphate ions. Adequate dietary calcium is critical for the mineralization process during tooth formation and for maintaining tooth integrity throughout life. Scientific studies have repeatedly demonstrated that insufficient calcium intake can lead to decreased bone mineral density, including the alveolar bone that supports teeth, increasing the risk of tooth loss and periodontal disease. Furthermore, calcium plays a vital role in the remineralization of enamel, helping to repair early stages of tooth decay. This is supported by clinical guidelines from dental and medical organizations, which recommend appropriate calcium intake for both children (during tooth development) and adults (for ongoing oral health). Calcium supplementation or adequate dietary calcium is often recommended as part of comprehensive dental health strategies, particularly in populations at risk for deficiency, such as postmenopausal women or individuals with dietary restrictions. Thus, the use of calcium to support the teeth is firmly grounded in robust scientific evidence.