The term "restoring" is often used as a marketing strategy rather than an accurate description of what these dental products actually do. It's a well-known fact that once tooth enamel is lost, it cannot be regenerated. However, it is possible to strengthen enamel by repairing its weak spots.

Products labeled as restoring help in a process known as remineralization. This process involves the addition of calcium and other minerals to the enamel, which helps to repair weak areas. Although these patches are not actual enamel, they are equally hard and durable. A more accurate term used by some manufacturers for this process is the strengthening or rebuilding of weak spots.

Calcium phosphate, the most common mineral found in enamel, is also known as hydroxyapatite. Products containing this mineral, as well as those containing fluoride—particularly stannous fluoride—are beneficial. However, a downside of stannous fluoride is that it can cause tooth staining, which may be tough or impossible to eliminate.

The natural cycle of mineral loss and replacement in teeth occurs daily. Calcium present in saliva can repair minor damages. However, enamel is compromised when consuming sugars, tea, soda, caffeine, or acidic foods. These disrupt the natural repair process, leading to weak spots that may develop into cavities. Additionally, if the body has a calcium deficiency, such as in osteoporosis patients, calcium may be drawn from the teeth. Enamel can also be worn down by tooth grinding, gastrointestinal issues, and certain medications like aspirin and antihistamines.

It's important to watch for signs of demineralization such as tooth sensitivity or discoloration. If significant enamel loss occurs, treatments like tooth bonding or crowns may be necessary. Dentists can prescribe stronger toothpastes and mouthwashes than those available in retail stores.

While restoring toothpastes and mouthwashes can strengthen enamel and help prevent decay, their effectiveness depends on maintaining good oral hygiene. This includes limiting intake of sugars, starches, and acidic foods, regular dental visits, and being aware of any medications or medical conditions that might impact dental health.