The Use of Milk as a Saliva Substitute

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Abstract
Xerostomia, a clinical manifestation of salivary gland dysfunction, affects many people. These individuals frequently sip liquids to alleviate the discomforts associated with hyposalivation. Milk appears to have many of the chemical and physical properties of a good saliva substitute. Besides the obvious benefit of providing moisture and lubrication for the dehydrated mucosa, milk buffers oral acids, reduces enamel solubility, and contributes to enamel remineralization. These anticariogenic factors are generally attributed to the high calcium and phosphate content along with the milk phosphoproteins that strongly adsorb to enamel. Patients with xerostomia frequently have difficulty in obtaining proper nutrition due to problems associated with lubricating, masticating, tasting, and swallowing food. Milk is a food with high nutritional quality that would certainly benefit most patients with xerostomia. Because of the nutritional, anticariogenic, and moisturizing properties of milk, patients with xerostomia may find milk of value as a saliva substitute to help reduce the oral health problems associated with hyposalivation.