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107 Cards in this Set
- Front
- Back
What are the 3 broad categories in perio dx? |
1. Gingival diseases
2. Various type of periodontitis 3. periodontal manifestations of systemic disease |
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What details must be included along side a periodontal diagonosis?
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- case history
- evaluation of clinical signs and symptoms, parameters and tests - general evaluation of patient |
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What are the sequence of procedures for perio dx?
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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 |
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What types of things are important to note in an oral examination when considering a perio diagnosis?
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- OH
- malodor - oral cavity in general - lymph nodes |
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What types of things are important to note in an examination of teeth and implants when considering a perio diagnosis?
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- wear
- sensitivity - mobility - occlusion |
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What types of things are important to note in an examination of periodontium when considering a perio diagnosis?
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- plaque
- calculus - gingiva - probing depths - BOP - KT/AG - recession - suppuration - presence of abscess |
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What is suppuration?
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to undergo formation of pus
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Name one very common disease that can have a large affect periodontal disease?
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diabetes
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What is gingivitis?
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inflamation of the gingiva (localized)
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What is periodontitis?
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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. |
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What are the 8 categories of peridontal disease from Armitage 1999?
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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 |
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4 subtypes of dental plauqe induced gingival disease?
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gingivtis associated with ...
1. dental plaque only or modified by ... 2. systemic factors 3. medications 4. malnutrition |
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8 subtypes of non-plaque induced gingival lesions?
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-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) |
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Classification criteria for gingival diseases?
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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 |
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List some universal features of gingival disease
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- 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 |
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Common clinical changes from gingival health to gingivitis
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- red/blue colour
- edematous or bulbous contour - soft and edematous consitency - bleeding on provocation - gingival exudate significantly increased - temps slightly increased to ~34ºC |
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What is plaque induced gingivitis?
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inflammation of the gingiva from bacteria located at the gingival margin – can occur on a periodontium without AL or with AL and not progressing
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What is considered healthy probing depths?
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1-3mm
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Features of plaque induced gingivitis?
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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 |
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Describe the gingival margin and common findings in plaque induced ginvgitis
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- 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) |
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What can be an early sign of gingivitis?
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BOP
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AL and bone loss in plaque induced gingivitis?
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-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 |
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Why may the gingiva look bluish in colour in plaque induced gingivitis?
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inflammation --> venous return has stopped --> venous stasis --> accumulation of deoxygenated blood makes gingiva look blue
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Why may the gingiva look red in colour in plaque induced gingivits?
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increased vascularizaation or decreased degree of epithelial attachment
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Where do changes in gingival colour, consistency and contour start in plaque induced gingivitis?
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start in the interdental papilla and gingival margin and spread to attached gingiva
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Describe the changes in consistency of the gingiva in plaque induced gingivitis?
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edematous (destructive changes) and fibrotic (reparative changes)
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Describe the histological changes that occur in plaque induced gingivitis (4)
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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 |
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How is plaque induced gingivitis reversed?
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-remove the plaque with non-surgical debridement→ gingival swelling gone
(also consider local contributing factors ) |
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What are some local contriubting factors that may contribute modify or predisposed to plaque induced gingivitis?
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- calculus,
- tooth anatomic factors, - dental restos, - appliances, - root fractures, - cervical root resorption |
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What does BOP indicate/predict?
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- 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 |
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What is indicative of healthy bone levels?
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distance from CEJ to alveolar crest is within 2mm
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Time (days) for the 3 stages of gingivitis
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1. Initial lesion: 2-4 days
2. Early lesion: 4-7 days 3. Established lesion: 14-21 days (2-3 weeks) |
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Describe the blood vessel changes during the 3 stages of gingivitis
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1. Vascular dilation/vasculitis
2. Vascular proliferation 3. Same as stage II plus venous return is impaired (blue colour) |
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Describe the changes in the junctional and sulcular epithelium in the 3 stages of gingivitis
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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 |
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Describe the predominant immunce cells in the 3 stages of gingivitis
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1. PMNs
2. Lymphocytes 3. Plasma cells |
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Describe the loss of collagen in the 3 stages of gingivitis
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1. perivascular loss
2. increased loss 3. continued loss |
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Describe the common clinical findings in the 3 stages of gingivitis
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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 |
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Gingivitis can be clinically categorized according to?
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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 |
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Some common features of periodontitis?
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- 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 |
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What are some histopathological features of periodontitis?
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Periodontal Pocketing
Bone Loss - PMN’s in JE and pocket E - Inflammatory cell infiltrate with plasma cells, L0, M0 → activate Osteoclasts → bone loss |
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What is considered to be a periodontal "pocket"?
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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 |
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Predominant types of bacteria?
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Filaments, rods and coccoid organisms with gram-negative cell walls
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What are the histopathologic features of bluish/red gingiva?
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venous stasis
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What are the histopathologic features of flacid gingiva?
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destruction of gingival fibers
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What are the histopathologic features of smooth/shiny surface gingiva?
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atrophy of eptihlium and edema
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What are the histopathologic features of pink and firm gingiva?
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fibrotic surface but inner pocket wall is still ulcerated
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What are the histopathologic features of BOP?
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increased vascularity and thinning/degeneration of epithelium
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What are the histopathologic features of pus at gingiva?
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suppurative inflammation of inner wall
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8 overall characteristics of chronic periodontitis?
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- 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 |
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Common clinical findings for chronic peiodontitis
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- gingival swelling
- redness - plaque, calculus - BOP - gingival shrinkage (recession, flattened papilla) - tooth migration - attachment loss |
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Gingival disease can be modified by systemic factors such as..
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- puberty
- pregnancy - diabetes - blood dyscarsias |
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Gingival disease can be modified by some medications such as..
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- dilantin
- cyclosporin - phenytoin |
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Gingival disease can be modifed by malnutrition such as...
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ascorbic acid deficiency
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Gingival diseases can be of specific bacterial origin such as..
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Neisseria gonorrhea
Treponema pallidum |
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Gingival disease can be of viral origin such as..
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HSV
Varicella-Zoster |
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Gingival diseases can be of fungal origin such as..
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candidiasis
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Gingival diseases can be of genetic origin such as..
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herditary gingival fibromatosis
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Some gingival manifestations of systemic conditions include..
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- mucocutaneous disorders
- allergic reactions |
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Relation between puberty and gingival health?
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- 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 |
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Relation between pregnancy and gingival health?
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- 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 |
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Relation between diabetes and gingival health?
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- hyperglycemia may be exacerbated bc of the altertions in the gingival response to plaque
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Relation between leukemia and gingival health?
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- 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 |
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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)
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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)
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Features of drug induced gingival enlargment
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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 |
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3 main drugs that cause gingival overgrowth
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CCBs (eg nifedipine)
Cyclosporine A Phenytoin |
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How does ascorbic acid defiency lead to gingivitis?
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Ascorbic acid (vit c) required for collagen synthesis.
When lacking, gingiva may appear bright red, swollen and there is bleeding |
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Gingival diseases of bacterial origin are especially a result of ?
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STDs such as Ghonnorrhea and Syphilis
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What is streptococcal gingivitis?
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a rare infection that may be acute and present with fever, malaise, red and swollen gingiva with increased bleeding
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What are the most common viruses the cause gingival diseases?
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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 |
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Tx of gingival disease of viral origin?
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topical and/or sytemic antiviral drugs
NB by the time patient presents, it is ofter too late for these drugs to take effect |
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Relationship between Varicella-Zoster virus and gingival disease
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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 |
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What is the most common fungus to cause gingival disease?
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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 |
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What is the most common gingival disease of genetic origin?
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Hereditary gingival fibromatosis
Gingival enlargment may completly cover the teeth May be associated with other syndromes |
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What are some systemic conditions that can cause mucocutaneous disorders
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Lichen Planus
Benign mucous membrane Pemphigoid |
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Which allergies are commonly associate with gingival manifestations?
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allergies to:
restorative materials toothpastes mouthwashes chewing gum foods |
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What is a common presentation of systemic conditions with gingival manifestation?
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desquamative lesions
± ulceration of gingiva |
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Examples of traumatic lesions associated with gingival disease
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- patient finger nails
- toothbrush trauma (ulceration and recession) - iatrogenic trauma (ortho applicance) - minor burns (food/drinks) |
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The clinical feature that distniguished periodontitis from gingivitis is presence of ________________________
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clinically detectable attachment loss
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Primary (common) features of aggressive periodontitis
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- otherwise healthy ptn
- rapid attachment loss and bone destruction - familial aggregation |
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Secondary features of aggressive periodontitis
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- 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 |
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Where is aggressive periodontitis usually localized to?
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central incisors and first molars
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Clinical characteristics of localized aggressive periodontitis
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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 |
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3 types of periodontitis as a manifestation of systemic disease
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1. Associated with hematological disorders (eg leukemia)
2. Associated with genetic disorders 3. Not otherwise specified (NOS) |
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Types of genetic disorders that may be associated with periodontitis?
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Cyclic neutropenia
Papillon-Lefevre syndrome LAD |
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How to distinguish periodontitis as a MANIFESTATION of sys disease from aggressive and chronic periodontitis MODIFIED by systemic disease?
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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
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What is cyclic neutropenia?
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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.
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Presentation of necrotizing periodontal diseases
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- 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 |
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What are the two forms of necrotizing periodontal diseases
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NUG and NUP
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What is NUG?
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Necrotizing Ulcerative Gingivitis
aka Vincents disease, fusospirochetal gingivitis, acute necrotizing ulcerative gingivitis (ANUG) |
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Bacteria associated with gingival lesions in NUG
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fusiform bacteria
- P. intermeida spirochetes |
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What 3 specific linical characteristics must be present to diagnose NUG?
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PAIN
INTERDENTAL GINGIVAL NECROSIS BLEEDING |
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Describe the pain in NUG
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- usually rapid onset
- quality is intense and results in ptn seeking tx |
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Describe the interdental gingival necrosis in NUG
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self limited to the interdental and marginal gingiva
- causes blunting of papilla |
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Describe the bleeding in NUG
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- gingival bleeding in NUGoccurs with little or no provocation
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What may form secondary to diagnostic features of NUG?
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Malodorous breath
Pseudomembranous formation |
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What is NUP?
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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 |
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Features of NUP
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- very similar clinical and etiological factors as NUG but also has CAL, and BL
-immune dysfunction predisposes to both NUG and NUP |
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3 types of abscesses of the peridontinum
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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 |
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Features of gingival abscess?
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-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 |
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Features of periodontal abscess?
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= 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 |
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Features of peicoronal absesses?
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-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 |
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Features of combined periodontic-endodontic lesions
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= where endo and perio problems are present in the same situation
-classification is not dependant on initial etiology, either can develop independently |
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Do you treat endo or perio problems first?
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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. |
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4 types of development or aquired deformities and conditions of the periodontium
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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 |
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Examples of localized tooth related factors that modify or predispose to plaque induced gingival disease/periodontitis
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- tooth anatomic factors
- dental restorations/applicances - root fractures |
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Examples of mucogingival deformities and conditions around the teeth
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- recession
- lack of keratinized gingiva - decrease vestibular depth - abberant frenum - gingival excess |
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Examples of occlusal trauma affecting periodontium
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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 |