Abbreviation: SD: standard deviation; MCI: mild cognitive impairment.P value is for the comparison among three groups of cognitive normal, MCI and dementia.Number of teeth missing among participants w
SD = standard deviation of the mean. NRT = number of remaining teeth. RCT = root caries teeth. RDFS = root decayed filled surfaces. a Student’s t test. b Fisher’s exact test. * p<0.05 ** p<0.01 Demogr