DH - Embryology and Histology Ch. 10
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When the gingival tissue is not healthy, it can provide a gateway for periodontal disease to advance into the deeper tissue of the _____, leading to a poorer prognosis for long term retention of the teeth.
the gingival tissue that tightly adheres to the bone around the roots of the teeth.
the gingiva tissue between adjacent teeth is an extension of attached gingiva and is the interdental gingiva, forming the _____.
- masticatory mucosa
- some areas of melanin pigmentation possible
- dull, firm, and immobile
The _____ fill in the area between the teeth apical to their contact areas to prevent food impaction.
- interdental papille
- conical shape- anterior teeth
- blunted shape- posterior teeth
At the gingival margin of each tooth is the free gingiva, or _____, which is continuous wiht the attached gingiva.
The gingival margin, or ____, at the most superficial part of the marginal gingiva, is also easily seen clinically, and its location should be recorded on a patients chart.
free gingival crest
free gingival groove
separates the attached gingiva form the marginal gingiva. This slight depression on the outer surface of the gingiva does not correspond to the depth of the gingival sulcus but instead to the apical border of the junction epithelium.
The marginal gingiva follows the scalloped pattern established by the contour of the _____ of the teeth.
cementoenamel junction (CEJ)
The marginal gingiva lacks the presence of stippling, and the tissue is mobile or free form the underlying tooth surface.
Apical to the contact area, the interdental gingiva assumes a nonvisible concave shape between the facial and lingual gingival surfaces forming the gingival ___.
the epithelim covering the col consists of the marginal gingiva of the adjacent teeth.
The attached gingiva has a thick layer of mainly
A. orthokeratinized stratified squamous epithelium
B. nonkeratinixed stratified squamous epithelium
C. parakeratinized stratified squamous epithelium
D. parakeratinized stratified cuboidal epithelium
the vascular supply comes from the what? making the tissue pinkish
The lamina propria also has tall, narrow ____ and ____, giving the tissue its varying amounts of stippling.
A. Interdental papillae, rete ridges
B. connective tissue papillae, rete ridges
C. interdental papillae, CEJ
D. connective tissue papillae, CEJ
The lamina propria serves as a ____.
- masticatory mucosa
- orthokeratinized stratified squamous epithelium
- not attached to underlying jaws
- firm but mobile
- gingival fiber group in lamina propria
the junction between the tooth surface and the gingival tissue.
together the sulcular epithelium and juncitonal epithelium form the ____.
dentogingival junction tissue
space that is filled with gingival crevicular fluid (GCF)
the GCF allows
the components of the blood to reach the tooth surface through the junctional epithelium form the blood vessels of the adjacent lamina propria.
The GCF includes:
- white blood cells
- polymorphonuclear leukocytes
- serum from plasma cells
Later, the GCF passes form the gingival sulcus into the oral cavity, where it mixes with the ____.
A deeper extension of the sulcular epithelium is the ____, which lines the floor of the gingival sulcus and is attached to the tooth surface.
The JE is attacked to the tooth surface by way of an _____.
epithelial attachment (EA)
The attachment of the JE to the tooth surface can occur on ....
Probing measurements are subject to variations depending on ...
- the clinicians insertion pressure
- accuracy of the readings
- the ability of the probe tip to easily penetrate tissue that is ulcerated or inflamed
sulcular epithelium consists of
A. stratified squamous epithelium
B. stratified cuboidal epithelium
C. stratified columnar epithelium
D. simple squamous epithelium
sulcular epithelium is either
- nonkeratinized stratified squamous epithelium or parakeratinized stratified squamous epithelium
- cells tighly packed
The interface between the sulcular epithelium and the lamina propria that it shares with the outer gingival tissue is relatively ____ compared with the others strongly interdigitated interface.
The JE cells are loosely packed, with fewer intercellular junctions with ____ between cells, as compared with other types of gingival tissue.
The number of _____ between the epithelial cells of the JE is also more than other types of gingival tissue filled with tissue fluid.
The JE is more ____ than other gingival tissue due to its fewer desmosomal junctions and increased intercellular spaces.
In the absence of of clinical signs of inflammation, approximately ___ PMNs migrate per minute through the JE into the oral cavity.
The JE, particularly its basal cell layers, is well innervated by ____.
A. sensory nerve fibers
B. blood vessels
D. cellular junctions
superficial ep cells pf the je provide the ___ and an internal basal lamina that create the ea
this internal basal lamina of the ea is continuous with the ___ between the junctional epthelium and the lamina propria at the apical extent of the je
the deepest layer of the je undergoes constant rapid cell division or ___
je cells do not undergo
the je has epithelial cells and nonpithelial cells that provide very potent antimicrobial mechanisms such as ___
white blood cells
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