THE EFFECT OF PASTEURIZED HOLSTEIN AND JERSEY COW’S MILK FOR EMAIL HARDNESS Rida Agustia Ningsih Dentistry Program Medical Faculty of Sriwijaya University ABSTRACT Background: Email was the hardest part of teeth. Email composed of minerals that can be released from the tooth surface when the pH of the oral cavity was below 5,5. The decrease in pH could lead to a demineralization process. Alte…