If incidence = 50 cases/1000 population/year and mean duration of disease = 5 years, then prevalence would be 1) 10 2) 250 3) 1/10 4) 1/250
Community DentistryAnswer: 2
The usefulness of a screening test depends upon its 1) Sensitivity 2) Specificity 3) Reliability 4) Predictive value
Community DentistryAnswer: 1
Nalgonda technique is used for 1) Defluoridation 2) Fluoridation 3) Purification of water 4) None
Community DentistryAnswer: 1
The most reliable criteria in Gustafson"s method of identification is 1) Cementum apposition 2) Transparency of root 3) Attrition 4) Root resorption
Community DentistryAnswer: 2
The number of new cases of a specific disease occurring is a defined population during a specified period of time is known as 1) Incidence 2) Point prevalence 3) Distribution 4) Prevalence
Community DentistryAnswer: 1
Following (is) are true of CPITN index 1) Oral cavity is divided into six sextants 2) At least two teeth should be present in one sextant 3) Two molars in each sextant and one tooth from anterior segment is considered 4) All of the above
Community DentistryAnswer: 4
Which of the following is a non-specific identification of dead person 1) Visual recognition by personal effects 2) Serological analysis 3) Analysis of skeletal remnants 4) Analysis of fingerprints
Community DentistryAnswer: 1
Deciduous teeth do not show fluorosis because 1) Placenta acts as a barrier 2) Fluoride is taken up by the fast growing skeletal tissue 3) The calcification time of deciduous teeth is less 4) None of the above
