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107 Cards in this Set

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What are the 3 broad categories in perio dx?

1. Gingival diseases
2. Various type of periodontitis
3. periodontal manifestations of systemic disease
What details must be included along side a periodontal diagonosis?
- case history
- evaluation of clinical signs and symptoms, parameters and tests
- general evaluation of patient
What are the sequence of procedures for perio dx?
1. Overall appraisal of patient
2. Med hx
3. Casts, clinical photos
4. Oral examination
5. Exam of teeth and implants
6. Exam of the periodontium
7. Intraoral radiograph survey
What types of things are important to note in an oral examination when considering a perio diagnosis?
- OH
- malodor
- oral cavity in general
- lymph nodes
What types of things are important to note in an examination of teeth and implants when considering a perio diagnosis?
- wear
- sensitivity
- mobility
- occlusion
What types of things are important to note in an examination of periodontium when considering a perio diagnosis?
- plaque
- calculus
- gingiva
- probing depths
- BOP
- KT/AG
- recession
- suppuration
- presence of abscess
What is suppuration?
to undergo formation of pus
Name one very common disease that can have a large affect periodontal disease?
diabetes
What is gingivitis?
inflamation of the gingiva (localized)
What is periodontitis?
Inflammation of the supporting tissues of the teeth (gingiva + supporting structures).

Usually a progressively destructive change leading to loss of bone and pdl. An extension of inflammation from gingiva into the bone and pdl.
What are the 8 categories of peridontal disease from Armitage 1999?
1. gingival disease
2. chronic periodontitis
3. aggressive periodontitis
4. periodontitis as a manifestation of systemic disease
5. necrotizing periodontal disease
6. abscesses of the periodontium
7. periodontitis associated with endodontic lesions
8. development of acquired deformities and conditions
4 subtypes of dental plauqe induced gingival disease?
gingivtis associated with ...
1. dental plaque only

or modified by ...
2. systemic factors
3. medications
4. malnutrition
8 subtypes of non-plaque induced gingival lesions?
-Gingival diseases of: 1. specific bacterial origin 2. viral origin 3. fungal origin
-Gingival lesions of 4. genetic origin
- 5. gingival manifestations of systemic conditions
- 6 traumatic lesions.
- 7. foreign body reactions
- 8. not otherwise specified (NOS)
Classification criteria for gingival diseases?
1. signs and symptoms
2. med and dental hx
3. clinical examination that involves extent, distributions and duration
4. physical description of lesions affecting gingiva
5. clinical attachment levels
6. radiographs
List some universal features of gingival disease
- s/s confined to gingiva, associated with stable attachment levels or on a reduced periodontium
- reversible if cause removed
- plaque initiates or exacerbates the severity of the lesion
- clinical signs of inflammation: edema, swelling, temperature change in the sulcus, colour change, BOP
- possible precursor to attachment loss
Common clinical changes from gingival health to gingivitis
- red/blue colour
- edematous or bulbous contour
- soft and edematous consitency
- bleeding on provocation
- gingival exudate significantly increased
- temps slightly increased to ~34ºC
What is plaque induced gingivitis?
inflammation of the gingiva from bacteria located at the gingival margin – can occur on a periodontium without AL or with AL and not progressing
What is considered healthy probing depths?
1-3mm
Features of plaque induced gingivitis?
1. plaque present at gingival margin
2. disease begins at the gingival margin
3. change in gingival colour, consistency and contour
4. gingival bleeding on probing
5. absence of attachment loss/bone loss
6. histological changes
7. increased sulcular temp/increase gingival exudate
8. reversible with plaque removal
Describe the gingival margin and common findings in plaque induced ginvgitis
- bacteria at dentogingival junction
- disease begins at GM (where the plaque is) but can advance into the periodontium
-may not be able to ID early, but common findings include: erythema, edema, bleeding, sensitivity, tenderness, enlargement(changes in marginal and papillary tissues)
What can be an early sign of gingivitis?
BOP
AL and bone loss in plaque induced gingivitis?
-no CT or bone loss on probing or x-ray analysis but AL (recession) may be present from past periodontitis
-clinical pictures can be alarming but no bone loss on x-rays
Why may the gingiva look bluish in colour in plaque induced gingivitis?
inflammation --> venous return has stopped --> venous stasis --> accumulation of deoxygenated blood makes gingiva look blue
Why may the gingiva look red in colour in plaque induced gingivits?
increased vascularizaation or decreased degree of epithelial attachment
Where do changes in gingival colour, consistency and contour start in plaque induced gingivitis?
start in the interdental papilla and gingival margin and spread to attached gingiva
Describe the changes in consistency of the gingiva in plaque induced gingivitis?
edematous (destructive changes) and fibrotic (reparative changes)
Describe the histological changes that occur in plaque induced gingivitis (4)
1. Proliferate basal and JE→ apical and lateral cell migration
2. vasculitis of BV’s adjacent to JE
3. Progressive destruction of collagen fibrils
4. progressive inflammatory/immune cellular infiltrate
How is plaque induced gingivitis reversed?
-remove the plaque with non-surgical debridement→ gingival swelling gone
(also consider local contributing factors )
What are some local contriubting factors that may contribute modify or predisposed to plaque induced gingivitis?
- calculus,
- tooth anatomic factors,
- dental restos,
- appliances,
- root fractures,
- cervical root resorption
What does BOP indicate/predict?
- indicates an inflammatory lesion in both epithelium and connective tissue
- may NOT be a diagnostic indicator for clinical attachment but IS an excellent NEGATIVE predictors for future attachment loss
What is indicative of healthy bone levels?
distance from CEJ to alveolar crest is within 2mm
Time (days) for the 3 stages of gingivitis
1. Initial lesion: 2-4 days
2. Early lesion: 4-7 days
3. Established lesion: 14-21 days (2-3 weeks)
Describe the blood vessel changes during the 3 stages of gingivitis
1. Vascular dilation/vasculitis
2. Vascular proliferation
3. Same as stage II plus venous return is impaired (blue colour)
Describe the changes in the junctional and sulcular epithelium in the 3 stages of gingivitis
1. Infiltration by PMNs
2. Same as stage I + rete peg formation and loss of coronal portion of JE
3. Same as II + more advanced JE is now pocket epithelium
Describe the predominant immunce cells in the 3 stages of gingivitis
1. PMNs
2. Lymphocytes
3. Plasma cells
Describe the loss of collagen in the 3 stages of gingivitis
1. perivascular loss
2. increased loss
3. continued loss
Describe the common clinical findings in the 3 stages of gingivitis
1. gingival fluid flow increases
2. erythema, BOP, colour change, size change, texture etc
3. Can remain stable for months OR become more active and convert into and Advanced lesion
Gingivitis can be clinically categorized according to?
Severity: mild(1-2mm CAL), moderate (304mm CAL), severe (>5mm CAL)
Extent/distribution: localized (<= 30% site affected) generalized (>30% sites affected)


Ex Generalized moderate plaque induced gingival disease/gingivitis
Some common features of periodontitis?
- inflammation (gingivitis)
- peridontal pocketing
- loss of alveolar bone (horizontal or angular)
- attachment loss

Other:
- recession
- presence of exudate and suppuration
- furcation involvement
- tooth migration
- tooth mobility
What are some histopathological features of periodontitis?
Periodontal Pocketing
Bone Loss
- PMN’s in JE and pocket E
- Inflammatory cell infiltrate with plasma cells, L0, M0 → activate Osteoclasts → bone loss
What is considered to be a periodontal "pocket"?
only sulci with probing depths 5mm or greater
- apical migration of the JE compared to the CEJ
- loss of collagen fibers subjacent to the pocket epithelium
Predominant types of bacteria?
Filaments, rods and coccoid organisms with gram-negative cell walls
What are the histopathologic features of bluish/red gingiva?
venous stasis
What are the histopathologic features of flacid gingiva?
destruction of gingival fibers
What are the histopathologic features of smooth/shiny surface gingiva?
atrophy of eptihlium and edema
What are the histopathologic features of pink and firm gingiva?
fibrotic surface but inner pocket wall is still ulcerated
What are the histopathologic features of BOP?
increased vascularity and thinning/degeneration of epithelium
What are the histopathologic features of pus at gingiva?
suppurative inflammation of inner wall
8 overall characteristics of chronic periodontitis?
- most prevalent in adults
- amount of destruction is consistent with the presence of local factors
- sub-G calculus usually present
- association with variable microbiollogical patter
- slow to moderate rate of progression (but may have periods of rapid progression)
- host factors determine rate of progression of disease
- Classified by extent: localized vs generalized 30% cutoff and severity CAL: 1-2, 3-4, 5 or >
- Associated or modified by systemic disease
- modified by predisposing factors such as cigarette smoking or emotional stress
Common clinical findings for chronic peiodontitis
- gingival swelling
- redness
- plaque, calculus
- BOP
- gingival shrinkage (recession, flattened papilla)
- tooth migration
- attachment loss
Gingival disease can be modified by systemic factors such as..
- puberty
- pregnancy
- diabetes
- blood dyscarsias
Gingival disease can be modified by some medications such as..
- dilantin
- cyclosporin
- phenytoin
Gingival disease can be modifed by malnutrition such as...
ascorbic acid deficiency
Gingival diseases can be of specific bacterial origin such as..
Neisseria gonorrhea
Treponema pallidum
Gingival disease can be of viral origin such as..
HSV
Varicella-Zoster
Gingival diseases can be of fungal origin such as..
candidiasis
Gingival diseases can be of genetic origin such as..
herditary gingival fibromatosis
Some gingival manifestations of systemic conditions include..
- mucocutaneous disorders
- allergic reactions
Relation between puberty and gingival health?
- prevalence of gingivitis increases due to increase in production of sex hormones
- P.intermedia associated with puberty gingivitis
- increased bleeding tendancy
- histopathologically consistent with inflammatory hyperplasia
Relation between pregnancy and gingival health?
- pregnancy gingivitis occurs in 30-100% of pregnant women
- called "pregnancy tumour" or pyogenic granuloma
- anterior region and interproximal sites are mostly involved
- Clx: erythema, edema, hyperplasia, increased bleeding
Relation between diabetes and gingival health?
- hyperglycemia may be exacerbated bc of the altertions in the gingival response to plaque
Relation between leukemia and gingival health?
- Mainly in acute leukemias
- Change in colour, contour (bluish-red), increase in size (first in interdental papilla)
- Spontaneous bleeding or prolonged bleeding → early sign of leukemia
- Accumulation of abnormal WBC’s → not fibrotic =not hard = do not cut
Development and severity of gingival enlargement in response to medications is ____________ and may be influences by uncontrolled plaque levels and elevated hormonal levels ( in case of oral contraceptives)
Development and severity of gingival enlargement in response to medications is PATIENT-SPECIFIC and may be influences by uncontrolled plaque levels and elevated hormonal levels ( in case of oral contraceptives)
Features of drug induced gingival enlargment
1. Anterior and buccal gingival
2. Prevalence is 20-80%
3. Onset within 3months → change in gingival colour and enlargement in size first noticed in interdental papilla (has a puffy pebble like appearance)
4. BOP. No AL
5. Secondary inflammation is due to plaque
6. Phenytoin, cyclosporine A, CCB’s
7. Hyperplasia → ↑ fb’s → ↑ collagen=hard feel, therefore must cut
3 main drugs that cause gingival overgrowth
CCBs (eg nifedipine)
Cyclosporine A
Phenytoin
How does ascorbic acid defiency lead to gingivitis?
Ascorbic acid (vit c) required for collagen synthesis.

When lacking, gingiva may appear bright red, swollen and there is bleeding
Gingival diseases of bacterial origin are especially a result of ?
STDs such as Ghonnorrhea and Syphilis
What is streptococcal gingivitis?
a rare infection that may be acute and present with fever, malaise, red and swollen gingiva with increased bleeding
What are the most common viruses the cause gingival diseases?
Herpesviruses 1 and 2
Frequently related to reactivation of a latent virus esp due to reduced immune function

HSV1 more common, mainly contracted by children >adults→ get primary herpetic gingivostomatitis
Tx of gingival disease of viral origin?
topical and/or sytemic antiviral drugs

NB by the time patient presents, it is ofter too late for these drugs to take effect
Relationship between Varicella-Zoster virus and gingival disease
VZV (chickenpox in children and Shingles in adults)
o Small ulcers on tongue, palate, gingiva→ dormant in DRG → reactivate as herpes zoster along nerve segment with vesicles usually on gingiva that pop and become ulcerated
o Dx = obvious: unilateral lesions associated with severe pain
What is the most common fungus to cause gingival disease?
candidiasis

more frequently in immunocompromised inv and those with normal flora distributed by the long term use of broad specture abx

presents as: white patches on gingiva, tongue or oral mucous membrane that can be removed with a gauze and leaves behing red/bleeding surfac
What is the most common gingival disease of genetic origin?
Hereditary gingival fibromatosis

Gingival enlargment may completly cover the teeth

May be associated with other syndromes
What are some systemic conditions that can cause mucocutaneous disorders
Lichen Planus
Benign mucous membrane
Pemphigoid
Which allergies are commonly associate with gingival manifestations?
allergies to:
restorative materials
toothpastes
mouthwashes
chewing gum
foods
What is a common presentation of systemic conditions with gingival manifestation?
desquamative lesions
±
ulceration of gingiva
Examples of traumatic lesions associated with gingival disease
- patient finger nails
- toothbrush trauma (ulceration and recession)
- iatrogenic trauma (ortho applicance)
- minor burns (food/drinks)
The clinical feature that distniguished periodontitis from gingivitis is presence of ________________________
clinically detectable attachment loss
Primary (common) features of aggressive periodontitis
- otherwise healthy ptn
- rapid attachment loss and bone destruction
- familial aggregation
Secondary features of aggressive periodontitis
- amount of microbial deposits are inconsistant with the severity of periodontal tissue destruction
- ↑proportions of A.a.
- abnormalities in phagocyte funtion
- hyper-responsive macrophage phenotype, including ↑levels of PGE2 and ILB
- Progression of attachment loss and bone loss may be self arresting
Where is aggressive periodontitis usually localized to?
central incisors and first molars
Clinical characteristics of localized aggressive periodontitis
1. circumpubertal onset of disease
2. localized 1st molar/incisor presentation with interproximal attachment loss on at least 2 permanent teeth, one of which is a 1st molar and involving no more than 2 teeth other than the 1st molar and incisors
3. usually patients <30YO
4. generalized interproximaly attachment loss affecting at least 3 permanent teeth other than 1st molar and incisors
5. Periods of advanced destruction followed by stages of quiescence of variable length
3 types of periodontitis as a manifestation of systemic disease
1. Associated with hematological disorders (eg leukemia)
2. Associated with genetic disorders
3. Not otherwise specified (NOS)
Types of genetic disorders that may be associated with periodontitis?
Cyclic neutropenia
Papillon-Lefevre syndrome
LAD
How to distinguish periodontitis as a MANIFESTATION of sys disease from aggressive and chronic periodontitis MODIFIED by systemic disease?
When systemic conditions is a major predisposing factor and other local factors such as plaque are not that evidence = periodontitis as a MANIFESTATION of systemic disease
What is cyclic neutropenia?
form of neutropenia that tends to occur every three weeks and lasting 3-6 days at a time, due to changing rates of cell production by the bone marrow.
Presentation of necrotizing periodontal diseases
- ulcerate and necrotic papillary and margina gingiva covered by yellowish white or greyish slough or pseudomembrane,
- blunting and cratering of papilla,
- bleeding,
- pain,
- malodorous breath
- may be accompanied by fever, malaise, lymphadenopathy
What are the two forms of necrotizing periodontal diseases
NUG and NUP
What is NUG?
Necrotizing Ulcerative Gingivitis
aka Vincents disease, fusospirochetal gingivitis, acute necrotizing ulcerative gingivitis (ANUG)
Bacteria associated with gingival lesions in NUG
fusiform bacteria
- P. intermeida

spirochetes
What 3 specific linical characteristics must be present to diagnose NUG?
PAIN
INTERDENTAL GINGIVAL NECROSIS
BLEEDING
Describe the pain in NUG
- usually rapid onset
- quality is intense and results in ptn seeking tx
Describe the interdental gingival necrosis in NUG
self limited to the interdental and marginal gingiva
- causes blunting of papilla
Describe the bleeding in NUG
- gingival bleeding in NUGoccurs with little or no provocation
What may form secondary to diagnostic features of NUG?
Malodorous breath
Pseudomembranous formation
What is NUP?
An infectoin characterized by necrosis of gingival tissue, PDL and alveolar bone.
- most commonly observed in individuals with systemic conditions incl. but not limited to: HIV, malnutrition and immunosuppresion
Features of NUP
- very similar clinical and etiological factors as NUG but also has CAL, and BL
-immune dysfunction predisposes to both NUG and NUP
3 types of abscesses of the peridontinum
1. gingival - localzied to marginal gingiva and interdental papilla
2. periodontal - localized to tissues adjacent to the periodontal pocket
3. pericoronal - localized to tissues surrounding crown of partially erupted tooth
Features of gingival abscess?
-local, painful, expanding lesion of the marginal gingiva and interdental papilla in previously disease free area
-usually from introduction of foreign substance into gingiva
-in 24-48 hours, its fluctuant and pointed with surface orifice
-may rupture spont→ pulpal hypersensitivity
Features of periodontal abscess?
= local accumulation of pus within the gingival wall or a periodontal pocket → collagen destruction and loss of alveolar bone
-calculus often present, associated with deep and tortuous pockets, furcations and infrabony defects
- lesions may be acute or chronic
Features of peicoronal absesses?
-pus in the overlying gingival flap around the crown of a tooth that has not fully erupted (mand 3rd molars)
-red and swollen flap
-infection can spread to the oropharyngeal area and medially to the base of the tongue and involve the regional lymph node
-patients have history of pericoronitits and have dysphagia
Features of combined periodontic-endodontic lesions
= where endo and perio problems are present in the same situation
-classification is not dependant on initial etiology, either can develop independently
Do you treat endo or perio problems first?
ENDO always

In all cases of perio associated with endo lesions, the endo infection should be controlled before beginning definitive management of perio lesion, esp when regenerative or bone-grafting techniques are planned.
4 types of development or aquired deformities and conditions of the periodontium
1. localized tooth related factors that modify or predispose to plaque induced gingival disease/periodontitis
2. mucogingival deformities and conditions around the teeth
3. mucogingival deformities and conditions on edentulous ridges
4. occlusal trauma
Examples of localized tooth related factors that modify or predispose to plaque induced gingival disease/periodontitis
- tooth anatomic factors
- dental restorations/applicances
- root fractures
Examples of mucogingival deformities and conditions around the teeth
- recession
- lack of keratinized gingiva
- decrease vestibular depth
- abberant frenum
- gingival excess
Examples of occlusal trauma affecting periodontium
occlusal forces cause injury to attachment apparatus
- primary occlusal trauma: excessive occlusal forces on a tooth with normal support
-secondary occlusal trauma: normal or excessive forces on a tooth with inadequate support (on a reduced periodontium)
-see fremitus (mvt of tooth with fxn), attrition, linea alba, crenated tongue, wide PDL space, migration of teeth