abstractOlivSh

The following is a description of an experiment involving real human teeth. The problem being studied was the effects on the tooth enamel when exposed to various liquids. The hypothesis centered around the idea that various liquids stain teeth differently. Data were collected using the following liquids to stain similar shaded, extracted teeth. Coffee, Tea, Water, Coca-Cola, Grape juice.

The hypothesis that Coca-Cola stained the most was proven true. The teeth did not stain as expected, the roots of the teeth absorbed the stain differently due to the lack of enamel. The stain on the teeth were measured against the shade guide by the coronal portion of the tooth. The crown of the tooth was compared in shade because that is the part exposed to liquids in the human mouth. With more advanced testing, better results would be achieved if acidity and sugars were also compared. The test would also benefit with more frequent intervals {hours, days, weeks, etc...} and longer amount of time in liquids.