During consumption, food or drink contacts only shortly with the tooth surfaces before it is washed away by saliva. In previous studies, substratesDuring consumption, food or drink contacts only shortly with the tooth surfaces before it is washed away by saliva. In previous studies, substrates usually contacted acidic foodstuffs for a prolonged period of time or did not account for the role of saliva.8–10 This study was designed to simulate the washing effect of saliva of an individual drinking a can of soft drink (325 ml) by cyclic specimen immersion. We extended this model to other food
and drinks to achieve a controlled condition, even though the period of consuming other diets can be different. Other protective effects of saliva such as buffering capacity, acquired pellicle, or remineralisation could not be simply reproduced in vitro.