Exam 2 100 questions NBOARD

107. What sterilization technique uses oxidation to sterilize dental instruments?

• a. Autoclave

• b. Unsaturated chemical vapor

• c. Dry Heat

• d. Ultrasonic

108. A patient that has a mild systemic disease and may or may not have special considerations in regards to his or her dental management, would be considered what type of ASA Classification?

• a. I

• b. II

• c. III

• d. IV

109. When a tooth loses tooth structure due to a chemical agent:

• a. Attrition

• b. Abrasion

• c. Hypoplasia

• d. Erosion

110. What is the vertical overlap of the maxillary and mandibular incisors considered?

• a. Overjet

• b. Overbite

• c. Crossbite

• d. Openbite

111. What is the dominant bacterium in the initial plaque stage?

• a. Gram positive streptococcus

• b. Gram negative streptococcus

• c. Spirochetes

• d. Gram negative rods

112. At what pH is a root demineralized?

• a. 4.5-5.5

• b. 5.5-5.9

• c. 6.0-6.7

• d. 6.5-7.4

113. Tobacco is considered what type of stain?

• a. Intrinsic

• b. Extrinsic

• c. Exogenous

• d. Endogenous

114. Which of the following conditions would respond to therapeutic diagnosis?

• a. Bone cyst

• b. Angular cheilitis

• c. Fordyce granules

• d. Paget disease

115. A dense, nonmineralized complex mass of bacteria that forms a gel like matrix:

• a. Acquired pellicle

• b. Biofilm

• c. Demineralization

• d. Plaque

116. Which of the following is not a major component of saliva that helps protect against dental caries?

• a. Calcium

• b. Phosphate

• c. Iron

• d. Fluoride