Milk in tea acts as effective whitening agent, new study finds

According to a new study that was recently published in the International Journal of Dental Hygiene, tea drinkers can prevent the liquid from staining their teeth simply by adding milk. The leader of the study, Dr. Ava Chow, explained her findings by saying, “Tea is the second most consumed drink in the world, and the way it’s processed affects how teeth are stained. The more tea is processed or oxidized, the higher its staining properties are. But we’ve found that the addition of milk to tea reduces the tea’s ability to stain teeth.”

Dr. Chow was able to arrive at this conclusion by submerging human teeth in two controlled solutions; one of tea by itself and another of tea with milk added. After twenty-four hours, the team took color readings revealing that the milk solution did not stain the teeth.

The results are due to the fact that the protein in milk, casein, binds with staining tannins in tea to prevent discoloration. The difference in color change between the teeth immersed in each solution was roughly equal to results typically obtained with bleaching products.

While this new study represents a fascinating piece of information for tea drinkers, Dr. Sid K. Steadman D.D.S. wants to assure Leander residents who do not drink tea that there are a number of other teeth whitening options worth exploring. If you are interested in a brighter smile, call us today at (512) 259-3365.