mock questions 6/25

most congenitally missing

max lateral

mod-severe fluorosis

white opacity on more 50% of the tooth, dark spot, brown/pitted, brittle enamel

Altering which of the following will effect penetration of the x-ray beam?

kVp

where is korff fibers located

mantle dentin

Hyperglycemia

fruity breath, rapid pulse

A curette design feature that limits the potential for tissue damage when used subgingivally is:

convex back

Ulcerative lesions of the oral cavity affect __% of the population.

20%

Osteonecrosis of the jaw is associated with:

Bisphosphonate therapy

Chlorhexidine gluconate is effective because it suppresses which microorganism?

Streptococcus mutans

All of the following are functions of saliva EXCEPT:

Nutrient source of subgingival calculus

Which of these structures is NOT located on the sphenoid bone?

Stylomastoid foramen (located in temporal bone)

ARE located: Foramen rotundum, foreman ovale, superior orbital fissure

Oral manifestations of multiple sclerosis may include all of the following EXCEPT:

Gingival hyperplasia:

ARE included: Trigeminal neuralgia, Paresthesia, Facial palsy

During which week(s) does the palate begin its development?

weeks 4-6

The dentinal hypersensitivity treatment that utilizes a low galvanic current and the precipitation of insoluble calcium is called:

Iontophoresis

A young patient presents with painful oral lesions that occur on the keratinized tissue. The gingiva appears inflamed and swollen and the patient's mother reports that the child has experienced fever and malaise recently. The signs and symptoms of this condition most likely mean that the patient is suffering from:

Acute herpetic gingivostomatitis

Which liner stimulates the formation of reparative dentin?

Calcium hydroxide

Where does the kidney filter blood through?

Glomerulus

The what functions to concentrate urine and reabsorb the sodium

loop of Henle

This is part of the nephron of the kidney and helps secrete urine into the calyx of the kidney.

Distal convoluted tubule

This prevents waste from re-entering the bloodstream.

Proximal convoluted tubule

Which core value deals with the hygienist having a primary role in promoting the well-being of individuals and the public by engaging in health promotion/disease prevention activities?

Beneficence

The dental tissue that is the closet to the bone is:

Cementum

hives, is a kind of skin rash notable for pale red, raised, itchy bumps

Urticaria

type III hypersensitivity reaction that results from the injection of heterologous or foreign protein or serum

Serum sickness

drug reaction characterized by laryngeal edema, bronchoconstriction and severe hypotension

Anaphylaxis

means excessive thirst

Polydipsia

A hard, dark brown or black spot on the clinical crown of a tooth of a 75-year-old person is probably:

Caries that has arrested

The application of excessive heat to a tooth results in pain because:

All stimuli to the pulp results in a pain sensation

While in centric occlusion, the normal relation of the permanent maxillary first molar to the mandibular arch is established when the:

Mesiolingual cusp of the maxillary first molar falls in the central fossa of the mandibular first molar

what is trismus?

a condition characterized by the inability to fully open the mouth due to muscle spasm or structural issues, often resulting from dental problems or trauma.

what tooth is not scared with DMFT?

3rd molars

Which of the following is a normal pattern for the eruption of primary teeth?

Maxillary first molars erupt before maxillary canines

All of the following tissues are non-keratinized EXCEPT?

Masticatory mucosa

All of the following tissues are non-keratinized

Alveolar mucosa, Vestibular mucosa, Buccal mucosa

What is the site for cellular protein synthesis?

Endoplasmic reticulum

in high concentrations, fluoride is

bactericidal

in lowconcentrations, fluoride is

bacteriostatic

Which of the following choices has the most cementum?

Apical third of the root

What is the biggest weakness of a gold cast restoration?

Solubility of the cement needed

Tooth #5 has 6 mm pockets around all sites of the tooth. When using your scaler, longitudinal developmental grooves would probably be noted on which of the following root surfaces?

Mesial

An excess of which of the following hormones can be associated with an increased sensitivity to epinephrine?

Thyroid

What is oral malodor most often caused by?

Bacteria in the oral cavity

What does Lactobacillus produce?

lactic acid

How many impulses of radiation does an x-ray unit produce per second?

60

What type of epithelium is gingival epithelium?

Stratified squamous

Which oral condition could result from the administration of a glucocorticoid?

Brown hairy tongue

can be due to autoimmune disorder, mouth injury or oral infection

Lichen planus

The angle between the face of a universal curette and its shank is:

90 degrees

what is a true statement about the spleen?

it has limited blood within the lobules

accessory pulp canals extend from

pulp to PDL

Multiple sclerosis is a progressive disorder that affects the _____________ nervous system.

Central

Chlorhexidine has a _________ charge.

positive

Chlorhexidine stain is ____________.

easy to remove

What injection site anesthetizes maxillary lateral to canine including the palatal tissues?

nasopalatine

Primary molars differ from permanent molars because primary molars have:

Greater divergence of roots

Which tooth has a longitudinal groove that extends the length of the root?

MX molar

A radiograph shows an amalgam overhang on the distal of #29. What is a cause of this?

Excessive condensed amalgam use for the prep

Which of the following is a good source of potassium?

yams

Which of the following permanent premolars frequently lacks a transverse ridge?

MN 2nd premolar

Preprocedural rinsing may be a good idea because aerosolized material may include: supragingival and subgingival plaque organisms, blood, and viruses including influenza and the common cold.

true

Which of the following is the test organism for intermediate level disinfection?

Mycobacterium tuberculosis

Which exogenous extrinsic stain can later become intrinsic?

green

When inserting a curette subgingivally, which of the following angles should be used?

close to zero degrees

The surfaces of the teeth have a _________ charge.

negative

What must a patient change first in order to receive effective oral hygiene instructions?

motivation

The gingiva of a 12-year-old patient is erythematous on the maxillary anterior teeth and bleeds easily. The affected area is widest in the midline and tapers laterally. The remaining gingiva is normal. This condition is most likely due to:

mouth breathing

What is the correct direction of the blood flow through the heart?

Right atrium - tricuspid valve - right ventricle - pulmonary artery (deoxygenated blood) - lungs -pulmonary vein (oxygenated blood) - left atrium - mitral valve - left ventricle - aorta

Which of the following premolars is most likely to have two separate roots?

MX 1st premolar

Which vitamin helps in metabolizing amino acids?

B6

Which method do alginate materials set?

Gelation

One of the objectives of using chlorhexidine as an intracanal medicament between visits is to:

Prevent rebound of pathogenic microorganisms

When root planing, which area would be the hardest to access?

Trifurcations of maxillary first molars

Which of the following premolars often has a third cusp?

MN 2nd premolar

Which lesion is related to Reiters syndrome?

Migratory glossitis

Which of the following can contribute to a patient developing stomach ulcers?

Aspirin

most effective for plaque removal in the presence of inflammation.

Bass

often used in patients with progressing gingival recession

Modified Stillman

tooth brushing technique that uses large, sweeping, scrubbing circles over occluded teeth, with the toothbrush held at right angles to the tooth surfaces

Fones

The most commonly used drug in dental emergencies is:

O2

Which is the drug of choice for patients taking Coumadin or with peptic ulcer disease?

Acetaminophen

Which of the following occurs in the dentin as a defense against invasion of the tubules by bacteria?

Sclerosis of the tubules

During which phase of growth are bacteria most susceptible to antimicrobial agents?

Log

Chlorhexidine staining is largely due to the reaction of chlorhexidine with ____________.

Chromogens