Board Questions

Which product is applied over the top of silver diamine fluoride to prevent black staining? A. Acidulated phosphate fluoride B. Stannous fluoride C. Potassium iodide D. Glass ionomer

C

The lead diaphragm in the tubehead is referred to as the a. target b. filament c. filter d. collimator

a

The type of epithelial tissue that lines the oral cavity is called a. stratified squamous epithelium b. simple columnar epithelium c. simple cuboidal epithelium d. pseudo-stratified columnar epithelium

a

Which of the following is a function of vitamin E? a. Acts as an antioxidant b. Promotes the mineralization of teeth c. Aids in the prevention of night blindness d. Synthesizes prothrombin

a

Which of the following is a function of water-soluble vitamins? a. Aid in the metabolism of energy-producing nutrients b. Assist with immune defenses c. Regulate serum levels of calcium and phosphorus d. Absorb calcium and phosphorus

a

Adverse reactions to calcium channel blocking agents include all of the following EXCEPT one. Which one is the EXCEPTION? A. Gingival enlargement B. Hyperkalemia C. Increased bleeding D. Renal failure

c

All of the following are characteristic of an anorexic patient EXCEPT one. Which one is the EXCEPTION? a. Lanugo b. Aversion to food c. Increased heart rate d. Excessive exercise

c

All of the following are local contributing factors in periodontal disease EXCEPT one. Which one is the EXCEPTION? A. Malpositioned teeth B. Overhanging restorations C. Dental implants D. Removable partial dentures

c

Each of the following factors influences the absorption of xrays in matter EXCEPT one. Which one is the EXCEPTION? a. density of material b. thickness of material c. quality of xrya beam d. quantity of xray beam d. atomic number of material

c

Hard tooth surfaces, including enamel and dentin, develop during which stage of tooth formation? a. bud stage b. cap stage c. bell stage d. maturation stage

c

T lymphocytes are a. required for immune responses to all antigens b. necessary only for humoral responses to injected antigens c. bound to antigens with their membrane-associated T-cell receptor d. found only in the thymus

c

What is the processing order that films undergo in an automatic film processor? a. Water, developer, water, fixer, dry b. Developer, water, fixer, dry c. Developer, fixer, water, dry d. Developer, water, fixer, water, dry

c

When placed backward, a film exposed in the mouth will exhibit a. fogginess b. no image c. waffle pattern d. cone cut

c

A component of gram-negative bacteria that functions as a potent endotoxin is a. mycolic acid b. lipoteichoic acid c. lipoprotein d. lipopolysaccharide

d

All of the following agents can be delivered via a cannula/syringe into periodontal pockets EXCEPT one. Which one is this EXCEPTION? A. Minocycline hydrochloride B. Doxycycline hyclate C. Prilocaine gel D. Chlorhexidine chip

d

The articulating surface of the condyle rotates within the: a. coronoid notch b. styloid process c. external acoustic meatus d. mandibular fossa

d

Viewed occlusally, the maxillary first molar is wider lingually than buccally. This increased occlusal surface area creates adequate space for the five major cusps commonly found on the tooth. a. The first statement is FALSE, the second is TRUE b. Both statements are FALSE c. Both statements are TRUE d. The first statement is TRUE, the second is FALSE

d

A patient of record complains of temperature sensitivity in the maxillary right second molar region of the mouth. A FMX was taken 2 years previously. Which radiographs should be prescribed? a. pan b. horizontal BWs c. vertical BWs d. PA

a

A well-defined red band of marginal gingiva adjacent to a base metal crown is likely to be caused by all of the following, EXCEPT one. Which one is the EXCEPTION? a. Food impaction b. Crown infringement of biological width c. Over-contoured crown d. Reactivity of metals in the crown e. Inadequate oral hygiene

a

Agents such as sodium bicarbonate and chlorine dioxide are added to oral self-care products to a. alleviate oral malodor b. reduce dentinal hypersensitivity c. prevent xerostomia d. reduce dental caries

a

Among the most commonly used medications for treatment of hypertension are the: a. Thiazide diuretics b. Loop diuretics c. Beta-adrenergic blocking agents d. Short-acting calcium channel blocking agents

a

Dental sealants are indicated in teeth with incipient pit and fissure carious lesions.The presence of caries-free pits and fissures with deep and irregular grooves is an indication for sealant application. a. both are true b. both are false c. 1st is true, 2nd is false d. 1st is false, 2nd is true

a

Diabetes is a disease affecting which of the following processes? a. carbohydrate metabolism b. fat intolerance c. protein metabolism d. fructose intolerance

a

Endogenous intrinsic stain is associated with all of the following, EXCEPT one. Which one is the EXCEPTION? a. caries b. genetic anomalies c. traumatized pulp d. tetracycline ingestion e. fluorosis

a

Secretions of the parotid gland are noted to be a. primarily serous b. primarily mucous c. both serous and mucous d. neither serous nor mucous

a

The initial vascular response during acute inflammation is initiated by the release of a. histamine b. kinins c. prostaglandins d. lysosomes

a

Thiamin deficiency may result in: a. Beriberi b. pernicious anemia c. Excessive bleeding d. Rickets

a

What type of data is information such as gender and address? a. nominal b. ordinal c. demographic d. knowledge

a

Which of the following does NOT describe the process of energy storage and transfer, as it occurs during microbial metabolism and cell regulation? A. The term catabolism describes biosynthetic reactions that use energy. B. Energy may be generated through the transport of electrons C. Chemical energy is stored as ATP D. Energy is produced during oxidation-reduction reactions.

a

Which of the following is NOT among the three classes of ventilator filters certified by The National Institute for Occupational Safety and Health Certification (NIOSH)? . A. N-93% B. N-95% C. R-99% D. P-99.97%

a

Which of the following situations increases penumbra? a. increased object-to-film distance b. reduced focal spot size c. faster speed film d. movement of film

a

Which of the following statements accurately describes gram-positive cell walls? a. Cell wall consists of a lipoprotein-lipopolysaccharide-phospholipid outer membrane b. An outer membrane protects cells against phagocytosis and chemicals c. Cell walls are easily broken by mechanical forces d. Cell walls consist of many layers of peptidoglycan and contain teichoic acids.

a

Zinc polycarboxylate cements are used to bond enamel. Their advantage over zinc phosphate cements is their adhesive property with calcium and carboxylate groups. a. Both statements are true b. The first statement is true, the second is false c. Both statements are false d. The first statement is false, the second is true

a

A disadvantage of acidulated phosphate fluoride (APF) for professional use is that it is unstable when stored in a plastic container.Fluoride varnish contains a 2% sodium fluoride solution (NaF). a. both are true b. both are false c. 1st is true, 2nd is false d. 1st is false, 2nd is true

b

A malignant tumor with etiology directly related to exposure to sunlight is a(an) a. juvenile melanoma b. basal cell carcinoma c. squamous carcinoma d. intradermal nevus

b

An advantage of glass ionomer cement over composite restorations is a. greater esthetic value b. better cervical retention c. higher compressive strength d. higher thermal insulation

b

An overdose of acetaminophen may cause damage to the liver. What major organ is impacted by an overdose of NSAIDs? a. Pancreas b. Kidneys c. Lungs d. Liver

b

Brittle, ridged, or spoon-shaped nails; scaly, flaky, off-colored or cracked facial skin; and pale epithelial lining of the eyes and gingiva are signs of which nutritional deficiency? a. Vitamin B b. Iron c. Zinc d. Vitamin K

b

Complications of AIDS-associated necrotizing ulcerative periodontitis (NUP) that differentiate it from the conventional non-AIDS-associated form of NUP may include a. lack of conventional periodontal pockets b. sequestration of bone fragments c. gangrenous stomatitis d. deep crater like osseous lesions

b

During which stage does a periapical cemento-osseous dysplasia (cementoma) radiographically appear as a mixed a mixed radiolucent/radiopaque lesion? a. early stage (osteolytic) b. middle stage (osteoblastic) c. end stage d. mature stage

b

Genial tubercles are an exit for incisive vessel branches. Genial tubercles appear as radiolucent circle inside opaque lingual foramen tubercles a. Both are true b. Both are false c. 1st is true, 2nd is false d. 1st is false, 2nd true

b

Hypothyroidism can result in a. increased numbers of catecholaminergic receptors b. slow tooth eruption c. an elevated metabolic rate d. an increased heart rate

b

Root fracture occurs MOST frequently in the anterior portion of the mouth. Root fracture appears as a radiopaque horizontal line on the root. a. Both are true b. Both are false c. 1st is true, 2nd is false d. 1st is false, 2nd is true

b

Some patients who exhibit ankyloglossia may not experience any adverse effects, however, the following are all effects that have been commonly noted EXCEPT one. Which is the EXCEPTION? a. bone loss b. depapillation of tongue c. speech impediment d. gingival recession

b

The facial surface of maxillary and mandibular first primary molars has: a. a buccal pit b. a curvature of the CEJ on the mesial half c. a pointed mesiobuccal cusp d. two cusps of equal size

b

The junction of three surfaces on the crown of a tooth is referred to as a(n) A. line angle. B. point angle. C. occlusal surface. D. incisal edge.

b

Viruses can be distinguished from all other microorganisms by virtue of their a. the ability to be isolated from the blood b. possession of only one type of nucleic acid c. resistance to antibodies d. necessity to replicate intracellularly

b

Which of the following epithelial tissues surrounding the tooth is nonkeratinized? a. papilla b. Inner surface of the free gingival margin c. Outer surface of the free gingival margin d. attached gingiva

b

Which of the following measurements is used to compare the biologic effects of different types of radiation? A. RAD B. Rem C. Gy D. Roentgen

b

Which of the following oral manifestations, when it persists longer than one month in the oral cavity, is recognized by the Centers for Disease Control and Prevention to be AIDS defining? a. Persistent generalized lymphadenopathy b. Herpes simplex virus lesions c. Hairy leukoplakia d. Xerostomia

b

All of the following are symptoms of hypoglycemia EXCEPT one. Which one is the EXCEPTION? a. Palpitations b. Sweating c. Lowered heart rate d. Shakiness

c

Bacterial organisms stain differently on the basis of a. thickness of slime layer b. thickness of glycocalyx c. permeability of cell walls d. thickness of plaque biofilm

c

Contrast is the difference between lighter and darker shades (grays) on the radiograph. Increased kVp (90 or higher) results in many shades of gray on the film a. Both are true b. Both are false c. 1st is true, 2nd is false d. 1st is false, 2nd is true

c

Hutchinson's triad is a result of congenital infection with a. Neisseria gonorrhoeae b. Histoplasma encapsulatum c. Treponema pallidum d. Epstein-Barr

c

If the x-ray machine is operating at 70kVp, what thickness of filtration is necessary? a. 1.5mm b. 2.0mm c. 2.5mm d. 3.0mm

c

Prior to periodontal surgery, it is important that all of the following patient conditions be addressed EXCEPT one. Which one is the EXCEPTION? A. Control of systemic illnesses B. Elimination of plaque-retentive restorations C. Abstinence from alcoholic beverages D. Treatment of restorative needs

c

Sustained-release, local drug delivery systems used in conjunction with periodontal debridement for pocket reduction is preferred over systemic delivery because local delivery occurs immediately and does not require prolonged time periods. A. Both the statement and reason are correct and related. B. Both the statement and reason are correct but NOT related. C. The statement is correct, but the reason is NOT. D. The statement is NOT correct, but the reason is correct.

c

The dental biomaterial bis-GMA is the a. powder component in cements b. mercury component in amalgams c. resin in pit and fissure sealants d. glass filler in composites

c

Two types of program evaluation are formative and performance.Formative, or ongoing, evaluation is a continual process throughout the program that can lead to revisions that improve program success. a. Both are true b. Both are false c. 1st is false, 2nd is true d. 1st is true, 2nd is false

c

Types of diagnostic testing of microbial samples obtained from patients include each of the following EXCEPT one. Which one is the EXCEPTION? A. DNA probes B. Culturing C. Fiberoptic probe D. ELISA

c

When a tooth is etched for sealant placement, primary teeth are etched for a longer period than are permanent teeth. Rinsing a saliva-contaminated etched surface immediately before sealant placement will remove the contamination a. Both are true b. Both are false c. 1st is true, 2nd is false d. 1st is false, 2nd is true

c

When taken with antacids, which one of the following can result in a decrease in intestinal absorption of the medication? A. Meperidine (Demerol) B. Penicillin V C. Tetracycline D. Acetaminophen (Tylenol)

c

Which of the following describes a facultative anaerobe? A. Metabolize substances anaerobically but are not harmed by oxygen B. Predominate in acute endodontic infections C. Utilizes oxygen when present; anerobically metabolizes when O2 not present D. Cannot survive in an aerobic environment

c

Which of the following oral tissues receives stimuli from nociceptors, mechanoreceptors, and proprioceptors? A. Pulp B. Dentin C. Periodontium D. Oral mucosa

c

Which of the following permanent teeth occlude with only one tooth in the opposite arch, assuming ideal relations exist? a. Max canine b. Max 1st molar c. mand central incisor d. mand 1st premolar

c

A drug with the suffix 'lytic' or 'blocker': a. Is bio-identical to acetylcholine b. Blocks contraction of skeletal muscles c. Dilates the synapse between nerves d. Blocks the action of neurotransmitters

d

All of the following accurately describe aspects of inflammatory papillary hyperplasia of the palate EXCEPT one. Which one is the EXCEPTION? a. Most often associated with partial/complete dentures b. Also called palatal papillomatosis c. Varying degrees of inflammation d. Frequently becomes malignant with slight pain

d

Candida albicans is known or suspected to cause all fo the following denture-related problems, EXCEPT one. Which one is the EXCEPTION? a. Papillary hyperplasia b. Denture stomatitis c. Angular chelitis d. Epulis fissuratum

d

Comparing permanent maxillary first and permanent maxillary second molars, each of the following statements is accurate EXCEPT one. Which one is the EXCEPTION? a. The second molar resembles the first molar, but is smaller b. From the occlusal view the second molar is more rhomboidal than the first molar c. Distolingual cusp of second molar is smaller and sometimes absent d. Second molars have a minor cusp on the mesiolingual cusp, (cusp of Carabelli)

d

During hand-activated instrumentation (scaling), which type of immunity may be immediately conferred to a dental hygienist following an accidental curet laceration of the finger accident? a. natural active b. natural passive c. artificial active d. artificial passive

d

Each of the following are accurate statements regarding Varenicline (Chantix) prescribed as an aid in smoking cessation therapy EXCEPT? a. nicotine receptor blocker b. amount of dopamine released into brain is reduced c. Full course of therapy is usually 12 weeks Dosing for Chantix is once daily for the first 3 days, twice daily thereafter for the full course of therapy (usually 12 weeks) d. can be used in conjunction with other smoking cessation products

d

Each of the following statements correctly describes the absorbed dose of radiation EXCEPT one. Which one is this EXCEPTION? a. applies to all types of ionizing radiation b. measurement is taken at the skin surface c. describes the maximum permissible dose d. rad is the traditional unit of measurement e. measures quantity of radiation dose received

d

For collection and analysis of research data, the measurement scale characterized by equal intervals along the scale that has presence of absolute zero and is utilized in most dental indices is the A. nominal scale. B. ordinal scale. C. interval scale. D. ratio scale.

d

Odontogenic myxoma, an odontogenic neoplasm that originates from mesenchymal tissue of tooth germ a. form in postmenopausal women and men over age 60 b. are located in the maxilla more frequently than in the mandible. c. are aggressive malignant lesions within bone d. radiographically appear as unilocular or multi-locular radiolucency; may have a "honeycomb" or "soap bubble" appearance.

d

The attraction of new bacteria to previously attached bacteria is referred to as colonization.Extracellular polysaccharides provide structural and energy sources for plaque biofilms. A. Both statements are TRUE. B. Both statements are FALSE. C. The first statement is TRUE, the second is FALSE. D. The first statement is FALSE, the second is TRUE.

d

The linear sequence of the components of amino acids is referred to as which type of structure? a. Secondary b. Tertiary c. Quarternary d. Primary

d

The lingual artery, an anterior branch of the external carotid artery supplies blood to each of the follow areas EXCEPT one. Which one is the EXCEPTION? A. The floor of the mouth B. The tongue C. The suprahyoid muscles D. Sublingual salivary gland

d

What unit of radiation represents the amount of radiation energy absorbed by the tissue? a. Roentgen b. Sievert c. Dose rate d. Gray

d

Where does the generation of x-rays in the x-ray tube actually occur? a. tungsten filament b. focusing cup c. copper stem d. tungsten target

d

Which is the correct sequence of stages of tooth development? a. Bud, cap, dentinogenesis, amelogenesis, bell, appositional dentin and enamel, eruption and root development, functional stage b. Bud, cap, bell, amelogenesis, dentinogenesis, appositional dentin and enamel, eruption and root development, functional stage c. Bud, cap, amelogenesis, dentinogenesis, bell, appositional dentin and enamel, eruption and root development, functional stage d. Bud, cap, bell, dentinogenesis, amelogenesis, appositional dentin and enamel, eruption and root development, functional stage

d

Which of the following microorganisms has been shown to predominate in localized aggressive periodontitis? a. P. gingivalis b. P. intermedia c. E. corrodens d. A. actinomycetemcomitans

d

Which of the following nonnutritive sweeteners should be avoided by patients who have phenylketonuria (PKU)? a. Saccharin b. Acesulfame-K c. Sucralose d. Aspartame

d

Which one of the following bacteria influences root caries? a. Prevotella intermedia b. Fusobacterium species c. Gram-Positive cocci d. Actinomyces viscosus

d

Which one of these film-process ingredients converts energized crystals into metallic silver? a. Sodium carbonate b. Sodium thiosulfate c. Potassium alum d. Hydroquinone

d

Radiation caries demonstrates each of the following characteristics EXCEPT one. Which one is this EXCEPTION? a. develop secondary to radiation-induced xerostomia b. progression is rampant and aggressive c. lesions encircle the cervical aspect of the crown d. crowns readily fracture, leaving root fragments in bone e. radiographically lesions have triangular shape at contact point

e