Module 1 Flashcards
What are the 4 tissues of the Periodontum?
Gingiva
PDL
Alveolar Bone
Cementum
What is the major function of the Periodontum?
Surround tooth and attach it to the jaw
What epithelium in the oral cavity is keratinized?
OE oral/outer epithelium
The OE includes?
Free and Attached Gingiva
What is the apical boundary of the gingiva called?
Alveolar Mucosa
The alveolar mucosa has a ___, dark ____ appearance?
shiny
red
The ________ epithelium extends from the gingival margin crest to the junctional epithelium (JE)?
Sulcular
Sulcular Epithelium is ______, and non- _____? It is _____ to liquids and has a _____ interface with the connective tissue?
thin
keratinized
permeable
smooth
The sulcular epithelium has a wavy interface with the connective tissue when ______ is taking place?
destruction
What forms the base of a sulcus?
JE junctional epithelium
The junctional epithelium is _____mm long?
1
The JE is thicker ______ and thiner _____?
coronally
apically
The JE is non- _______ and has a ______ interface with the CT?
keratinized
smooth
The JE is attached via _________?
desmosomes
What is the line between the attached gingiva and alveolar mucosa?
MGJ mucogingival junction
What is the shallow linear depression separating the free gingiva and the attached gingiva?
Free Gingival Groove
What gingiva lie coronal to the CEJ and is unattached?
Free Gingiva
The Free Gingiva is attached to the tooth via ______?
JE
The Free Gingiva has a ___, _____ outline?
scalloped
wavy
The Attached Gingiva is connected to the ______ and ______?
cementum (root)
periosteum (bone)
The attached gingiva is usually wider on which arch?
MX
The attached gingiva is narrowest in the _______ area?
premolar
Healthy attached gingiva is _____ to ______ in color but can also be _______?
pale
coral pink
pigmented
__% of people have stippling of the attached gingiva?
40
The functions of the attached gingiva is to?
allow gingiva to withstand mechanical forces of mastication and toothbrushing.
Prevents free gingiva from being pulled away from tooth.
What area is the thin rounded edge where the free gingiva meets the tooth?
Gingival Margin
Interdental Gingiva fills _____ and has ____ papillae?
embrasures
2
The ____ is directly apical to the contact point between two teeth?
col
The function of the interdental gingiva is?
preventing food from getting stuck between teeth.
The ________ is the space between the tooth and the free gingiva?
Gingival Sulcus
A healthy sulcus is __-_____ mm deep?
1
3
Free and Attached Gingiva (in kids) is more ____ in color, less _____ and is usually _____.
red
keratinized
thinner
Kids can have a ___ sulcus during eruption of a tooth.
deeper
Kids will have a _____ PDL on x-rays?
wide
The width between the alveolar crest and CEJ ( in kids) is ______?
variable widths
What type of epithelium covers the outer part of the gingiva?
stratified squamous
What term is used to describe the layer of cells that separate connective tissue from epithelial tissue?
basal lamina
What are the 3 BROAD areas of gingival tissue?
Oral Epithelium
Sulcular Epithelium
Junctional Epithelium
The Basal Lamina and epithelial cells are joined via ____?
Hemidesmosomes
How do 2 JE cells join?
Desmosomes
The JE provides a barrier between ___ and the _____?
biofilm
connective tissue
The tooth interface of the JE is comprised of what 2 things?
Hemidesmosomes
Internal Basal Lamina
The connective tissue interface of the JE is comprised of what 2 things?
Hemidesmosomes
External Basal Lamina
The WAVY epithelial to connective tissue boundary is comprised of?
Rete Pegs (epithelial ridges) Connective Tissue Papillae
What is the purpose of the WAVY epithelial to connective tissue boundary?
Enhance Adhesion by increasing the surface area which also helps provide nourishment and helps resist mechanical forces
What are the 2 main components of the Extracellular Matrix?
“gel” ground substance
Fibers (collagen, elastin, reticular)
What CELLS can be found in the Extracellular Matrix?
Fibroblast, Mast, Macrophages, Plasma, B-Lymphocytes
The Epithelial Tissue has a BIGGER matrix than the Connective Tissue? T/F
False
The Gingival Connective Tissue is also known as the?
Lamina Propria
What cells are found in connective tissue?
Fibroblasts
Macrophages
Lymphocytes
What is the main function of the gingival connective tissue?
attach gingiva to cementum and bone
Cells comprise _____% of the gingival connective tissue?
5
The Function of the extracellular matrix in the connective tissues is to transport?
H2O, nutrients, metabolites, oxygen
What fibers in the connective tissue allow the gingiva to form a rigid “cuff” around the tooth?
Collagen Fibers
What fibers are found coronally to the alveolar crest?
Gingival Fiber Groups
The JE and Gingival fibers (together) are termed the?
Dentinogingival unit
How thick is the width of the PDL?
0.05- 0.25mm
What are the 5 Principal Fiber Groups of the PDL?
Alveolar Crest Apical Horizontal Interradicular Oblique
Alveolar Crest Fibers resist ______ movement of the tooth?
horizontal
Horizontal Fibers resist ______movement of the tooth?
horizontal
Oblique Fibers resist _____ movement of the tooth?
vertical
Apical Fibers resist _____ forces.
lifting
Interradicular Fibers _____ tooth?
stabilize
The Biological Width is comprised of ______ and _______?
JE (1mm) Gingival Fibers (1mm)
The Biological Width is the distance from _____ to ____?
base of sulcus
alveolar crest
Bone will be ______ in order to keep the Biological Width at ______mm thus making a _______ pocket?
destroyed
2
deeper