Say Cheese: Study Suggests Cheddar Protects Tooth Enamel From Acid Erosion

An array of cheeses on a cutting board

Cheese is just what the dentist ordered for a healthy smile, according to a 2013 study published in General Dentistry.

Researchers from India measured the dental plaque pH on the teeth of 68 adolescents, ages 12 to 15, before and after they sampled cheddar cheese, milk or sugar-free yogurt. A lower pH level indicates teeth are at risk for erosion – the wearing away of tooth enamel – a process that can lead to cavities. Higher pH levels “lower the chance of developing cavities,” according to the study’s lead author, Vipul Yadav, MDS.

Those who consumed milk or yogurt in the study showed no change in their pH levels. But those who ate the cheddar cheese had higher pH levels, translating to a lower risk for caries. The study indicated that the rising pH levels from eating cheese may have occurred due to increased saliva production. Various compounds found in cheese also may adhere to tooth enamel and help further protect teeth from acid.

Academy of General Dentistry spokeswoman Seung-Hee Rhee, DDS, called dairy products “a healthy alternative to carb- or sugar-filled snacks” and said they “may be considered a preventive measure against cavities.”

So add a slice of cheddar cheese to your sandwich and trade your sugary soda for milk to wash it down. Make sure your lunch also includes other healthy foods that are good for you teeth like fruits, vegetables and whole grains. And if you can’t brush right after a meal, pop in a piece of sugar-free gum. Gum produces saliva, which washes away food particles that could get stuck in your teeth.

Leah Martinez
Leah Martinez serves as a social media analyst for Delta Dental of Arizona. In college at the University of New Mexico, Leah took the path of no return and majored in Chemistry with healthcare on her mind. After learning direct patient care was not her forte, she landed a job as the advertising manager at University of New Mexico's college newspaper “The Daily Lobo.” It was this job that turned her on to her skills in digital marketing. Since joining Delta Dental in 2012, Leah found her niche, as the constant education and learning in social media brings out the true geek in her. In her spare time, Leah enjoys snowboarding, snowmobiling and riding dirt bikes. (Did we mention she's based in Colorado?) [Editor's Note: Leah is no longer a current DDAZ employee.]