Which of the following is not essential for calculus formation 1) Increase in pH 2) Salivary mineral content 3) Bacteria 4) Mucopolysaccharides
Community DentistryAnswer: 3
The index that is age specific 1) OHIS 2) DMFT 3) def 4) DMFS
Community DentistryAnswer: 3
Best caries activity test used for field study is 1) Lactobacillus count test 2) Streptococcus mutans 3) Snyder"s test 4) None of the above
Community DentistryAnswer: 2
A mandible found at mass disaster site has following features
1. Angle of mandible is 90 degrees
2. Angle of mandible everted
3. Full complement set of teeth including 3rd molars are present
It may belong to 1) Middle aged female 2) Middle aged male 3) Male below 18 years 4) Female above 60 years
Community DentistryAnswer: 2
Minimum concentration of fluoride required for inhibition of enzymatic action of bacteria is 1) 25 ppm 2) 50 ppm 3) 100 ppm 4) 1000 ppm
Community DentistryAnswer: 2
Residents of three villages with three different types of water supply were asked to participate in a study of identify cholera carriers. Because several cholera deaths had occurred in the recent past, virtually everyone present at the time submitted to examination. To proportion of residents in each village who were carries was computed and compared. This study is a 1) Cross-sectional study 2) Case-control study 3) Concurrent cohort study 4) Non-concurrent
Community DentistryAnswer: 1
The occurrence of dental caries in a population at a given point of time may be termed as 1) Incidence 2) Point prevalence 3) Period prevalence 4) None of the above
Community DentistryAnswer: 2
Fluoride is carried in the blood via 1) Plasma 2) RBCs 3) Both plasma and RBC 4) WBCs
