Effect of consuming original yogurt on changes in saliva pH in the oral cavity

Background: Dental caries occur due to a dynamic demineralization process that happens when calcium and phosphate ions are dissolved carbohydrates fermented by microorganisms in the mouth, leading decrease saliva pH. Saliva production occurs as response stimuli such tasting chewing food. contains oral cavity bacteria, cervical gingival fluid, leftover food, known whole saliva. Normally, pH ranges from 6.8-7.2 can if someone consumes foods drinks containing sucrose. One way reduce risk of dental is consuming original yogurt. Yogurt probiotic namely Lactobacillus bulgaricus Streptococcus thermophilus, which act inhibitors cariogenic bacteria growth. The content yogurt helps tooth remineralization process. Purpose: This study aims determine effect on changes cavity. Methods: research pre-experimental with pretest posttest design. sample consisted 30 students Faculty Dentistry, Institute Health Sciences Bhakti Wiyata Kediri 2019, 2020, 2021 2022, who met criteria. Results: Data were analyzed using parametric Paired T-Test hypothesis test, significance value 0.000. Conclusion: Original consumption has an impact salivary