Admission Test for Dental Hygiene (ATDH) Practice

The primary function of calcium in oral health is to support enamel strength. Calcium is a crucial mineral that contributes to the remineralization of tooth enamel, which is vital for maintaining the structural integrity and hardness of teeth. Strong enamel serves as a protective barrier against decay, acid erosion, and sensitivity. Adequate calcium levels in the body ensure that there are sufficient minerals available for this process, which can help prevent cavities and other dental issues.

While other options touch on important aspects of oral health, they do not relate directly to the role of calcium. For example, whitening teeth primarily involves cosmetic treatments rather than mineral support. Enhancing gum tissue regeneration involves other nutrients, such as vitamin C, which play a more direct role in connective tissue health. Preventing halitosis usually requires good oral hygiene practices and the management of bacteria, rather than a focus on calcium intake. Thus, supporting enamel strength is undeniably the most relevant function of calcium in maintaining oral health.