NBDHE

What is the smooth area between the eyebrows called? A. Philtrum B. Frontal region C. Frontal eminence D. Glabella E. Tragus Correct Answer: *D. Glabella* A. Philtrum - the groove between the upper lip and the nose B. Frontal region - includes the forehead and the area superior to the eyes C. Frontal eminence - prominence of the forehead E. Tragus - smaller flap of tissue of the auricle anterior ro the external acoustic meatus Research misconduct involves all of the following EXCE...

What is a benefit of resin-based sealants? A.) Fluoride is released from material to inhibit decay B.) When placed correctly, retention is excellent C.) Bond strength is improved in a moist environment D.) No polymerization shrinkage occurs Correct Answer: B.) When placed correctly, retention is excellent Which is the most common desensitizing agent found in over-the-counter dentifrices? A.) Potassium B.) Glutaraldehyde C.) Hydrogen Peroxide D.) Triclosan Correct Answer: ...

Guillain-Barre syndrome, myasthenia gravis, Wegener's granulomatosis, and Goodpasture syndrome all include plasmapheresis as a treatment option. After separating whole blood from plasma, the plasma is returned into circulation. Which of the following would be returned as a normal component of plasma? Formed elements Agranulocytes Thrombocytes CFC Albumin Correct Answer: Albumin An 18-month old boy diagnosed with Crouzon' syndrome needs to have surgery to treat the prematurely fused ...

What does periodontology involve? Correct Answer: Diagnosis, tx, and prevention of the inflammatory and systemic disease processes affecting the periodontium What are the tissues of the periodontium? Correct Answer: Gingiva, PDL, Cementum and alveolar bone What are the functions of the periodontal ligament? Correct Answer: Transmits occlusal forces to bone, attaches teeth to bone, maintains position of gingival tissues, resists impact of occlusal forces, shock absorber for nerves/vessel...

What are the conditions for chemical sterilization? Correct Answer: 273 F @ 25psi for 20 mins *may damage rubber and plastic* What are the conditions for dry sterilization? Correct Answer: 340 F for 1 hr 320 F for 2 hrs *avoid paper products, may damage rubber and plastic* What are the conditions for steam sterilization? Correct Answer: 250 F @ 15 or 20 lbs psi for 30 mins *corrodes nonstainless steel, dulls instruments, paper packages come out wet* What spore test is used for ch...

Longitudinal Correct Answer: A study in which df/dmf are conducted yearly on the same group of children is an example of which type of study? Children and young adults in fluoridated and nonfluoridated communities Correct Answer: Sealant programs are recommended for _________. A fluoride mouth rinse program Correct Answer: In a nonfluoridated community, which preventative dental health program would have the maximum cost benefit for the control of caries in elementary school children? ...

Sensory impulses from a toothache are likely to be transmitted on Correct Answer: cranial nerve V Viruses can be distinguished from all other microorganisms by virtue of their Correct Answer: possession of only one type of nucleic acid Too little vertical angulation when taking radiographs will result in Correct Answer: elongation Which of the following describes a Class I furcation involvement? Correct Answer: A slight concavity is detectable, but no radiolucency is visible on the ...

Which is the functional unit of striated muscle? - A. A band B. I band C. H Zone D. Sarcomere D. Sarcomere Slightly damaged tissue completely returns to its normal structure and function in which healing process? - A. Primary intention B. Regeneration C. Repair D. Secondary intention B. Regeneration In a normal differential blood count, which is the most numerous white blood cell? - A. Basophils B. Lymphocytes C. Monocytes D. Neutrophils D. Neutrophils The two buccal ...

Which has the highest powder-to-water ratio? Plaster Type III stone Type IV stone Type V stone Correct Answer: type V (die stone) Patients with uncontrolled diabetes might exhibit each of the following conditions EXCEPT one. -Generalized widening of PDL space -Peripheral neuropathy -Polyuria -Retinopathy Correct Answer: generalized widening of PDL space Which is the handpiece primarily used for intraoral polishing? a. Belt-driven b. High speed c. Low speed d. Porte poli...

The lamina dura appears as a dense and ___ line that surrounds the tooth of a tooth a. radiopaque b. radiolucent Correct Answer: a. radiopaque The alveolar crest appears radiopaque and is typically ___ to ___ mm below the CEJ Correct Answer: 1.5-2mm The PDL appears ___ on a radiograph and is a thin line around the tooth Correct Answer: Radiolucent What radiopacity is located posterior and inferior to the TMJ area? Correct Answer: Mastoid process What radiopaque spine extends fr...