Nbdhe Board Study Questions |213 Questions| With Correct Answers.

Which term describes the ratio of affected individuals to well individuals in a community? A. Natality B. Mortality C. Vital Index D. Morbidity {Ans: D. Morbidity}Which of the following is the most sensitive to radiation? A. Muscle B. Bones C. Reproductive organs D. Nervous tissue {Ans: C. Reproductive organs -Note: nervous tissue is the least sensitive, followed by muscle.}Which of the following is the proper order to place a sealant? A. Dry, clean, etch, isolate, rinse, dry, apply B. Clean, rinse, isolate, etch, rinse, dry, apply C. Clean, dry, rinse, etch, isolate, rinse, dry, apply D. Clean, rinse, isolate, rinse, dry, etch, apply {Ans: B. Clean, rinse, isolate, etch, rinse, dry, apply}All of the following are liners EXCEPT: A. Varnish B. Calcium hydroxide C. Zinco-oxide/eugenol D. Zinc phosphate {Ans: D. Zinc phosphate is a cement}Which of the following describes a wedge-shaped biochemical loss that often occurs on the cervical portion of the maxillary right canine and premolars? A. abrasion B. abfraction C. caries D. erosion {Ans: B. abfraction}What is the classification of a furcation with moderate bone loss, where a Nabers probe can enter the furcation, but cannot pass through the roots? A. class 1