Term
Definition of Periodontology |
|
Definition
The scientific study of the periodontium in health and disease |
|
|
Term
Definition of Periodontium |
|
Definition
Tissues that invest and support the teeth including gingiva, alveolar mucosa, cementum, periodontal ligament, and alveolar and supporting bone |
|
|
Term
What is the "hallmark" treatment of periodontology |
|
Definition
|
|
Term
Name 2 examples of non-surgical therapy |
|
Definition
1) Scaling and root planing
2) Local delivery of chemotherapeutics |
|
|
Term
What are two possible uses of a gingivectomy |
|
Definition
1) To remove excess gingiva
2) To re-contour existing gingiva |
|
|
Term
Name 3 examples of resective surgery |
|
Definition
1) Gingivectomy
2) Crown Lengthening
3) Osseous surgery |
|
|
Term
Give an example of periodontal plastic surgery |
|
Definition
|
|
Term
Give two goals of mucogingival surgery |
|
Definition
1) To increase the width of keratinized gingiva
2) To add gingiva in areas where recession had occured (for root coverage) |
|
|
Term
What is the main goal of regenerative surgery? |
|
Definition
To regenerate the bone, cementum, and periodontal ligament |
|
|
Term
What are the 4 principal components of the periodontium? |
|
Definition
1) Gingiva
2) PDL
3) Cementum
4) Alveolar bone |
|
|
Term
The free gingival margin should sit _____ against the teeth. |
|
Definition
|
|
Term
The gingiva is the portion of the masticatory mucosa that covers what? |
|
Definition
1) The alveolar process of the jaws
2) The cervical portion of the teeth |
|
|
Term
Attached gingiva is demarcated by ______ coronally and the _______ apically. |
|
Definition
Free gingival groove, mucogingival junction (MGJ) |
|
|
Term
Attached gingiva is attached to _____ and ______ _______. |
|
Definition
|
|
Term
The free gingival groove is the clinical correlate to the ______ of the ______. |
|
Definition
|
|
Term
In health, attached gingiva is _______ in appearance ("cobblestoney") |
|
Definition
|
|
Term
Attached gingiva ____ _____ move, and ______ masticatory function. |
|
Definition
|
|
Term
There usually is about _____ mm between the CEJ and the start of the alveolar bone. This leaves space for the soft tissue of the gingiva to sit. |
|
Definition
|
|
Term
What is the keratinization status of the oral epithelium? |
|
Definition
keratinized or parakeratinized |
|
|
Term
Which epithelial layer is keratinized or parakeratinized? |
|
Definition
|
|
Term
Which epithelial layer is non-keratinized and is relatively impermeable to passage of fluids and cells? |
|
Definition
|
|
Term
Which epithelial layer is non-keratinized but is semi-permeable and allows white blood cells to exit through to the sulcus as a defense mechanism? |
|
Definition
|
|
Term
Besides white blood cells, what other fluid enters the sulcus to bath this area? |
|
Definition
|
|
Term
Name the 4 layers of the oral epithelium, with most superficial first. |
|
Definition
stratum corneum
stratum granulosum
stratum spinosum
stratum basale |
|
|
Term
Which layer of the oral epithelium sits against the basement menbrane
|
|
Definition
|
|
Term
The lining of the mouth is made up of ______ ______. |
|
Definition
|
|
Term
Give 3 characteristics of alveolar mucosa that help differentiate it from gingiva |
|
Definition
1) alveolar mucosa is non-keratinized, stratified, squamous epithelium
2) subepithelial connective tissue is loosely attached to periosteum (bone)
3) minor salivary glands may be present |
|
|
Term
What is the main advantage of the undulations of the oral epithelium? |
|
Definition
They provide increased surface area, allowing for stronger attachment of the gingival fibers |
|
|
Term
What is the main function of the PDL |
|
Definition
To ensure attachment of the tooth root to the alveolar bone. |
|
|
Term
The dentogingival junction is a functional unit composed of gingival ______ _______ and ________ attachment. |
|
Definition
connective tissue, epithelium |
|
|
Term
Which structures attaches the junctional epithelium to the tooth? |
|
Definition
|
|
Term
A collar-like band of stratified squamous non-keratinized epithelium is a description of what? |
|
Definition
|
|
Term
Which epithelial layer has two distinct basal laminas? |
|
Definition
|
|
Term
_______ _________ is the most permeable of any epithelium in the oral cavity
|
|
Definition
|
|
Term
Junctional epithelium separates the ______ ______ from the oral environment |
|
Definition
|
|
Term
At the bottom of the sulcus, the JE is approximately _____ cells thick, and narrows _____ to just a few cells. |
|
Definition
|
|
Term
Which epithelial layer has the highest turnover rate of cells in order to maintain attachment to the tooth. |
|
Definition
|
|
Term
The lamina ____ is the layer that attaches to the epithelium |
|
Definition
|
|
Term
The internal basal lamina connects to the _____, while the external basal lamina connects to the ______. |
|
Definition
tooth
gingival connective tissue |
|
|
Term
Gingival connective tissue is a lamina _____ of densely packed ______ and ______ fibers, with only scant _____ and ______ fibers |
|
Definition
propria
collage
reticular
elastic
oxytalan |
|
|
Term
What type of collagen is primarily found in gingival connective tissue?
What percent is this collagen in the CT? |
|
Definition
|
|
Term
T/F: The lamina propria has no submucosa |
|
Definition
|
|
Term
Name the 5 gingival fiber groups |
|
Definition
Alveologingival
Dentogingival
Dentoperiosteal
Circular
Transeptal |
|
|
Term
Name the gingival fiber group
arise from the alveolar crest and insert coronally into the lamina propria |
|
Definition
|
|
Term
Name the gingival fiber group
Extends from cementum (tooth) just apical to base of JE and to connective tissue of free and attached gingiva |
|
Definition
|
|
Term
Name the gingival fiber group
From cervical cementum (passes over crest) to periosteum |
|
Definition
|
|
Term
Name the gingival fiber group
Encircles tooth |
|
Definition
|
|
Term
Name the gingival fiber group
horizontal fibers that extend between teeth |
|
Definition
|
|
Term
The depth of the gingival sulcus varies from _____ mm. |
|
Definition
|
|
Term
The periodontal pocket refers to the space between the ________ gingiva and the _____. |
|
Definition
|
|
Term
Name the 4 classic signs of inflammation |
|
Definition
redness (erythema)
swelling (edema)
heat
pain |
|
|
Term
Name 3 major vascular changes related to inflammation |
|
Definition
Increase in vascular diameter
Leukocyte emigration and accumulation
Increase in vascular permeability |
|
|
Term
Which cell is one of the first critical cells that is at site of infection?
|
|
Definition
|
|
Term
Name 3 functions of inflammation in fighting infection |
|
Definition
Deliver effector molecules/cells
Physical barrier, counter spread of infection
Promote and initiate repair |
|
|
Term
Give 2 examples of pro-inflammatory cytokines |
|
Definition
|
|
Term
What are 4 possible outcomes of acute inflammation? |
|
Definition
Resolution
Abscess
Scar
Chronic |
|
|
Term
While varying greatly, the average width of the PDL is _______. |
|
Definition
|
|
Term
If tooth is not in function (has no opposing tooth, etc.) then we would expect the PDL to be _______.
|
|
Definition
|
|
Term
Another name for the radiopaque (whiter) line that represents the layer of alveolar bone proper (cortical lining of the socket) |
|
Definition
|
|
Term
Name the 5 functions of the PDL |
|
Definition
Formative
Supportive
Nutritive
Sensory
Protective |
|
|
Term
A viable PDL will always contain which 3 types of cells?
|
|
Definition
cementoblasts, fibroblasts, and osteoblasts. |
|
|
Term
Which cells help repopulation (with phenotypic induction) of the cementoblasts, osteoblasts, and fibroblasts in the PDL? |
|
Definition
Mesenchymal progenitor cells |
|
|
Term
Epithelial cells in the PDL are remnants of the _____ _____ and are found in islands called _____ __ _______.
|
|
Definition
root sheeth
Rests of Malessez |
|
|
Term
It is theorized that the ________ _____ in the Rests of Malassez can turn on during periodontitis state and can contribute to the pathology.
|
|
Definition
|
|
Term
Name the 5 principle fibers of the PDL |
|
Definition
Alveolar crestal group
Horizontal group
Oblique group
Apical group
Interradicular group
|
|
|
Term
Principle Fibers of the PDL
Eminates from the crest of the bone and goes to the cementum |
|
Definition
|
|
Term
Principle Fibers of the PDL
Located on the coronal aspect of the PDL and may run perpendicular from the bone to the cementum
|
|
Definition
|
|
Term
Principle Fibers of the PDL
Connection is more apical on the tooth than the bone connection
|
|
Definition
|
|
Term
Principle Fibers of the PDL
Radiate from the apex of the tooth
|
|
Definition
|
|
Term
Principle Fibers of the PDL
Only found in multi-rooted teeth. Runs from the crest of the bone to the furcal roof of multi-rooted teeth.
|
|
Definition
|
|
Term
What is the main function of cementum? |
|
Definition
To anchor the periodontal ligament fibers to the tooth. |
|
|
Term
What is derived from ectomesenchymal cells from the dental sac (follicle)? |
|
Definition
|
|
Term
Cementum is _______% inorganic (hydroxyapetite) and ________ % organic and water |
|
Definition
|
|
Term
The majority of people (60-65%) have _______ that slightly overlaps _______ at the CEJ |
|
Definition
|
|
Term
What are the three types of cells found in cementum? |
|
Definition
Cementoblasts
Cementocytes
Cementoclasts |
|
|
Term
Cementoblasts are _______ shaped cells |
|
Definition
|
|
Term
Which cells manufacture matrix composed of Type I collagen, proteoglycans, glycoproteins, and GAGs? |
|
Definition
|
|
Term
_______ allow for communication between different cementocytes |
|
Definition
|
|
Term
Large multinucleated cells that are located in Howship's lacunae |
|
Definition
|
|
Term
_______ cementum is considered the primary cementum - it is laid down along the dentin surface |
|
Definition
|
|
Term
_______ cementum is less calcified than _______ cementum. |
|
Definition
|
|
Term
Type of cementum that is located at the apical aspect of the root and has bone like character |
|
Definition
|
|
Term
Type of cementum that has Sharpey's fibers embedded in it |
|
Definition
|
|
Term
Acellular cementum is found in the apical ___ to ___ of the root. |
|
Definition
|
|
Term
Cementocytes are generally trapped in which type of cementum? |
|
Definition
|
|
Term
Formation of cementum beings during _____ formation |
|
Definition
|
|
Term
Differentiation of ____________ cells into cementoblasts is involved in cementogenesis. |
|
Definition
|
|
Term
Mineralization during cementogenesis begins at the ____________. |
|
Definition
cemento-dentinal junction |
|
|
Term
T/F: Cementum has the ability to repair itself |
|
Definition
|
|
Term
Bone is derived from ___________ from the dental sac (follicle) |
|
Definition
|
|
Term
Bone is approximately ____% inorganic and ____% organic. |
|
Definition
|
|
Term
Osteoblasts are derived from _____________ cells |
|
Definition
|
|
Term
Osteoblasts are __________ ______ shaped cells |
|
Definition
|
|
Term
Which cells synthesize collagenous and noncollagenous products such as proteoglycans and glycoproteins? |
|
Definition
|
|
Term
Osteocytes are derived from ___________ cells
|
|
Definition
|
|
Term
Osteocytes are _________ _______ cells (shape) |
|
Definition
|
|
Term
Osteocytes communicate with adjacent cells through radiating processes within _______. |
|
Definition
|
|
Term
Osteoclasts are derived from __________ _____ cells |
|
Definition
|
|
Term
Osteoclasts can be described as ___________ _____ cells. |
|
Definition
|
|
Term
Which type of bone contains no blood vessels so nutrients diffuse from adjacent bone marrow. |
|
Definition
Cancellous, spongy, or trabecular bone (synonyms) |
|
|
Term
In compact bone, formation continues and blood vessels are trapped in ______ ____. |
|
Definition
|
|
Term
Need recession of the ______ bone in order to see bone loss radiographically |
|
Definition
|
|
Term
Woven, or bundle bone, is arranged adjacent to the ________ _____ and has thin lamellae arranged _____ to the root. |
|
Definition
periodontal ligament
parallel |
|
|
Term
Name the 3 components of the alveolar bone process
These components of bone are classified by _______ and not by ____. |
|
Definition
1) Alveolar bone proper
2) Supporting bone
3) Interdental septa
location, type |
|
|
Term
Alveolar bone proper is also called _______ _____, ______ ______, or ______ bone |
|
Definition
cribiform plate, lamina dura, bundle |
|
|
Term
The periodontal ligament fibers (Sharpey's fibers) are embedded in this component of the alveolar bone process |
|
Definition
|
|
Term
Supporting bone contains an outer layer of ______ bone on the ______ and _____ surface of the maxilla and mandible |
|
Definition
cortical, buccal, lingual |
|
|
Term
Supporting bone has an inner zone of cancellous bone which supports the ______ _____ ________. |
|
Definition
|
|
Term
This bone component of the alveolar bone process separates the roots of adjacent teeth |
|
Definition
|
|
Term
The periosteum is a connective tissue that is closely bound to the bone and two layers. What are they?
Which layer contains cells that have the ability to differentiate into osteoblasts? |
|
Definition
1) Outer - fibrous layer
2) Inner - cellular layer
Cellular layer |
|
|
Term
Type of bone formation using a cartilage template |
|
Definition
|
|
Term
Type of bone formation that does not use a cartilage template (using membrane template) |
|
Definition
|
|
Term
The mineralization of _____ and _______ are very similar as they are made up of similar cells |
|
Definition
|
|
Term
Feedback between ________ and ________ is necessary to get osteoclasts to begin absorbing bone
|
|
Definition
|
|
Term
__________ contain PTH receptors |
|
Definition
|
|
Term
Reversal lines form as a result of _______ and _______ of bone or cementum |
|
Definition
|
|
Term
Name two age related changes of cementum |
|
Definition
1) Decreased cell and fiber content with age
2) The amount of cementum increases with age |
|
|
Term
With increasing age, bone shows ________ vascularity, cells, and fibers, a _________ in healing capacity and metabolic rate, and an _______ or _______ in density. |
|
Definition
decreased, reduction, increase or decrease |
|
|
Term
Which phase of passive eruption?
Base of the gingival sulcus and the junctional epithelium are on the enamel |
|
Definition
|
|
Term
Which phase of passive eruption?
Base of the gingival sulcus in on the enamel, and part of the junctional epithelium is on the root |
|
Definition
|
|
Term
Which phase of passive eruption?
Base of the gingical sulcus is at the cementoenamel line, and the entire juntional epithelium is on the root |
|
Definition
|
|
Term
Which phase of passive eruption?
Base of the gingival sulcus and the junctional epithelium are on the root |
|
Definition
|
|
Term
_____ or more species of bacteria have been found in the oral cavity. |
|
Definition
|
|
Term
This disease is a form of traumatic injury that involves scratching or gouging of the gingiva and is usually present in individuals with emotional issues. |
|
Definition
|
|
Term
Name 2 effects of toothbrush abrasion |
|
Definition
1) Gingival recession
2) Notching of the roots which increases plaque retention |
|
|
Term
This injury involves scratching or gouging of the gingiva and is caused by improper flossing |
|
Definition
|
|
Term
Mouth breathing can lead to ______ gingiva and ________ of the gingiva. |
|
Definition
|
|
Term
Chemical irritation can be associated with which three etiological agents |
|
Definition
1) Aspirin
2) Mouth rinses
3) Toothpaste |
|
|
Term
_______ is an acid, so if it sits against the gingiva it can cause _________ of the tissue. |
|
Definition
Aspirin, burning (sloughing off) |
|
|
Term
Name one significant effect of using smokeless tobacco |
|
Definition
Vast gingival recession where tobacco is placed |
|
|
Term
Give two examples of occlusal traumatism |
|
Definition
|
|
Term
A bony exostosis can arise due to what? |
|
Definition
Clenching and/or grinding |
|
|
Term
|
Definition
The body's defensive mechanism against injury or infection |
|
|
Term
|
Definition
Inflammation of the gingiva |
|
|
Term
|
Definition
Inflammation of the supporting tissues of the teeth. Usually a progressive destructive change leading to a loss of bone and PDL. An extension of inflammation from the gingiva into the adjacent bone and PDL. |
|
|
Term
Name 3 broad classes of gingival irritants |
|
Definition
1) Physical
2) Chemical
3) Microbiological |
|
|
Term
Name 3 types of inflammation |
|
Definition
1) Acute
2) Chronic
3) Chronic granulomatous |
|
|
Term
An exudative response is generally associated with which type of inflammation |
|
Definition
|
|
Term
_____ is an example of an exudate associated with acute inflammation. It is made up of which first responder cells? |
|
Definition
|
|
Term
In chronic inflammation, which type of cell is very common as part of the proliferative response? |
|
Definition
|
|
Term
Despite all 3 types of inflammation looking different, we still see the ______ ______ of inflammation for all three.
|
|
Definition
|
|
Term
Which type of inflammation is associated with recruitment of macrophages, an epithelioid, and giant cell formation? |
|
Definition
|
|
Term
List the objects of the inflammatory reaction |
|
Definition
1) Gather cells for phagocytosis at the site of the injury
2) Gather antibodies
3) Neutralize and dilute the irritant (edema)
4) Limit the spread of the inflammation (fibrosis)
5) Initiate repair |
|
|
Term
Name 4 stages of inflammation |
|
Definition
Vascular response
Cellular response
Chemical mediators
Immune response |
|
|
Term
List the 3 effects of the vascular response of inflammation |
|
Definition
1) Increase blood flow
2) Sticking of WBCs to the capillary walls
3) Migration of leukocytes through the capillary walls and chemotaxis of granulocytes slowly replaced by monocytes |
|
|
Term
List the main effect of the cellular response of inflammation |
|
Definition
|
|
Term
Name the chemical mediators associated with inflammation |
|
Definition
Histamine
Serotonin
SRS-A
Bradykinin |
|
|
Term
Diapedesis refers to what? |
|
Definition
Emigration of leukocytes or movement into blood circulation |
|
|
Term
Fibrin deposition during inflammation is important for what? |
|
Definition
Helps the body in ability to repair |
|
|
Term
The main function of neutrophils is to _____ and _______ bacteria. |
|
Definition
|
|
Term
Chemotaxis refers to what? |
|
Definition
Accumulation of cells at injured sites during inflammation response |
|
|
Term
Name the 5 cardinal signs of inflammation |
|
Definition
Erythema
Edema
Pain
Temperature
Loss of function |
|
|
Term
The cardinal sign of pain may be caused by what? |
|
Definition
Inflammatory mediators lowering the pain threshold for sensory nerves or increasing pressure due to build up |
|
|
Term
Tissue that is thickened in the attached gingiva region can be referred to as being _______. Which patients is this most commonly seen in? |
|
Definition
Fibrotic, most commonly seen in patients who smoke cigarettes. |
|
|
Term
In health, the shape of the interdental papilla should be _________. |
|
Definition
|
|
Term
Describe the appearance of punched out interdental papilla |
|
Definition
Instead of looking like a pyramid peak or knife edge, the interdental papilla would look like an inverted U. |
|
|
Term
In the case of retracted gingival tissue, a significant amount of calculus built up on the root surface that prevent what?
|
|
Definition
This may prevent the soft tissues from being able to attach to the tooth properly. |
|
|
Term
Mobility of teeth and pathological migration can lead to alterations in ________.
|
|
Definition
|
|