The Normal Periodontium

1. The sulcular epithelium is a

• thin keratinized stratified squamous epithelium

• thin non keratinized stratified squamous epithelium

• thick keratinized stratified squamous epithelium

• thick non keratinized stratified squamous epithelium

2. The normal color of the gingiva ( marginal. attached , and interproximal) may be best described by which one of the following?

• Normal gingival color is described as coral pink.

• Normal gingival color is described as bright red.

• Normal gingival color is described as reddish blue.

• Normal gingival color may vary from coral pink to varying shades of red or reddish blue.

Which of the following statements about the gingiva is not true?

• Normal gingiva is firm and resilient.

• Normal gingival surface is either keratinized or parakeratinized.

• Gingival enlargement may cause a coronal positioning of the gingival margin.

• Bleeding of the gingiva during toothbrushing usually is not considered an abnormal finding.

• Fibroedematous gingival consistency indicates the presence of an increase in connective fibers and cells along with the edema of inflammation.

Epithelial cell junctions junctions are cellular structures that can attach

• a. epithelial cell to a neighboring epithelial cell

• b. an epithelial cell to a basal lamina

• c. an epithelial cell to elastin fibers

• d. a and b

• e. b and c

5. The deep extensions of epithelium that reach down into the connective tissue are termed :

• hemidesmosomes

• desmosomes

• epithelial ridges

• connective tissue papillae

• none of the above

A cell junction that connects an epithelial basal cell to the basal lamina is termed

• hemidesmosomes

• desmosomes

• epithelial ridge

• connective tissue papilla

• keratin layer

It is also referred to as the epithelial attachment which is a non keratinized squamous epithelium.

• oral epithelium

• sulcular epithelium

• junctional epithelium

• basal laminal epithelium

Which of these epithelial layers comprise cells with nuclei that act as a cushion against mechanical stress and wear?

• collagen layer

• extracellular ground

• nonkeratinized layer

• keratinized layer

In the junctional epithelium ,epithelial cells attach to neighboring epithelial cells via

• internal basal lamina

• external basal lamina

• hemidesmosomes

• desmosomes

• none of the above

Which of the statements about the gingival crevicular fluid is not true ?

• Gingival crevicular fluid is mainly composed of epithelium, connective tissue, serum, inflammatory cells and microbial flora

• In the state of health GCF is present in large quantities whereas in inflammation, GCF decreases and resembles an inflammatory exudate.

• Gingival crevicular fluid can be a transudate or an exudate which contains a wide range of biochemical factors which can be used as a potential diagnostic biomarker of the biologic state of the periodontium in health and disease.

• It has a cleansing action.

• all of the above