Misc Board Questions ; MDC Dental Hygiene

50 terms by laurishly 

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Studying for the boards!

Cone-shaped teeth are characteristic of

ectodermal dysplasia

What is the origin of the epithelium that lines periapical cysts?

Rests of Malassez

The leading cause of death in industrialized Western countries is

ischemic heart disease

Vital minerals associated with fluid balance

sodium & potassium

A mass formed from the constituents of the blood within the vessels or the heart during life

thrombus

Innervation of the submandibular and sublingual salivary glands is supplied by which nerve?

Facial Nerve

Which one of the following muscles is innervated by the facial nerve and the trigeminal nerve?

digastric nerve

sternohyoid

Which one of the following muscles functions to depress the hyoid bone?

Rectangular collimation reduces scatter radiation by _%?

30%

Pulmonary edema is often a sign of

left sided heart failure

What heart chamber has the thickest valve?

left ventricle

Angina can be relieved by

nitro

When the left ventricle contracts, which valve opens?

Aortic valve

Some risk factors for infective endocarditis is:

coronary heart disease
previous use of phen/fen
mitral valve prolapse
prosthetic heart valves

adenoma of the pituitary gland is

acromegaly

The sum of all ventricular cell depolarizations (the main contraction of the heart)?

QRS complex

Which blood vessel carries oxygenated blood from the lungs to the heart?

pulmonary vein

The stimulus of respiration is controlled by amount of carbon dioxide in...

arterial blood

Characteristics of Cushing's syndrome:

results from hyperfunction of the adrenal gland
characterized by delayed wound healing
characterized by "buffalo hump"

Exophthalmos, nervousness, tachycarrdia, heat intolerance, and hypertension most likely suggest:

HYPERthyroidism

25. Deoxygenated blood from the body enters which heart chamber?

Right atrium

Which of the following abscesses is associated with infrabony pockets?

periodontal absess

The junctional epithelium is attached to the cementum via:

hemidesmosomes

collagenase, elastase, glucoronidase and hyaluronidase destroy which tissue of the periodontium?

Connective Tissue

A frenum pull is what kind of defect?

mucogingival defect

Localized aggressive perio primarily effects

Adolescents

Prognosis for grade III furcation

hopeless

Goal of root planing:

Gain connective tissue attachment

Characteristics of Opsonins

facilitate phagocytosis
coat antigens
enhance ingestion of bacteria

Collagen fibers trapped in the precementum matrix as it calcifies are known as

sharpey's fibers

Examples of connective tissue fiber...

circular, transseptal, dentogingival

The lack of bone covering the root in a cleft formation is called:

dihescence

Bacteria associated with NUG

prevotella intermedia

Which of the following toothpaste ingredients has been associated with gingival lesions?

sodium lauryl sulfate

Acellular cementum is located...

on the cervical 1/3 of root

Cell that produces collagen

fibroblast

Periodontal disease alters what kind of cell?

neutrophils

Vertical bone loss is what kind of pocket?

infrabony

Which layer of epithelium lies adjacent to connective tissue?

stratum basale

What layer is missing in lining mucosa?

stratum corneum

In the oral mucosa, what layer is actively dividing?

stratum basale

The cell that provides the natural coloration of the oral mucosa and the epidermis is

melanocyte

The connective tissue covering the outside of bone is called

periosteum

Alveolar bone resembles____ histologically?

cementum

The thickened band of oral epithelium that will become the enamel organ is called

dental lamina

Structure of enamel organ that becomes ameloblasts

inner enamel epithelium

When does root formation begin?

When crown is formed but not fully calcified

If epithelial rests are left in the periodontal ligament after tooth development, what could occur?

a cyst

When is the developing root completely formed?

2-3 years after eruption

What is the primary function of the periodontal ligament?

support

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