Etiology of Periodontal Diseases (FINAL REVIEW) Flashcards
Describe healthy gingiva:
- firm & resistant
- coral pink
- scalloped gingival margin
- peaked/pointed interdental papilla
- stippled surface texture
- no BOP
- consistent with good oral hygeine
Lingering biofilm on a healthy tooth results in:
inflammatory process
_____ persists as long as biofilm is present around gingival tissues
local inflammation
When does the inflammation of gingiva caused by biofilm resolve?
RESOLVES after removal of biofilm
Inflammation of the gingival tissues
gingivitis
Gingivitis affects more than ____ % of the population
82%
Is gingivitis reversible?
yes
What is the PRIMARY etiologic factor of gingivitis?
Plaque
Characterized by:
- inflammation of gingival margins and interdental papilla
- redness
- BOP
- NO attachment loss
gingivitis
What is the most common form of gingival disease?
dental plaque-induced gingival disease
Dental-plaque induced gingival diseases may occurs:
without attachment loss or on a reduced periodontium
In dental-plaque induced gingival disease, the inflammatory lesion is:
within the gingiva
T/F: Dental Plaque-induced gingival diseases are not associated with progressive attachment loss
true
Result of the microbial challenge between bacteria in plaque biofilm and host response
gingivitis associated with dental plaque only
Cessation of oral hygiene leads to gingivitis within ____ in healthy adults
2-3 weeks
Gingivitis associated with dental plaque only is histologically characterized by: (4)
- dense infiltrates of lymphocytes
- mononuclear cell fibroblast alterations
- increased vascular permeablility
- continuing loss of collagen in response to the microbial challenge
The following are histological signs of:
- dense infiltrates of lymphocytes
- mononuclear cell fibroblast alterations
- increased vascular permeablility
- continuing loss of collagen in response to the microbial challenge
gingivitis associated with dental plaque only
What is the primary etiologic factor for gingivitis?
plaque
What can alter the severity/duration of the inflammatory response of gingivitis associated with dental plaque only?
modifying local or systemic factors
Gingivitis associated with dental plaque only is fully ____ in healthy persons once:
reversible; once local factors and microbial load around teeth are reduced
What are the systemic factors that may modify gingival health and disease?
endocrine changes- puberty, menstrual cycle, pregnancy, diabetes
Specifically what aspects of gingival health and disease are altered by systemic factors?
hosts cellular and immunological functions
What is pregnancy induced gingivitis caused by?
primarily caused by hormonal imbalances associated with pregnancies
What percent of pregnancies experience pregnancy induced gingivitis?
more than 30%
Describe pregnancy induced gingivitis:
characterized by mild to severe gingival inflammation as well as pain, some cases may have significant hyperplasia and bleeding and resolves itself after delivery
What bacteria is responsible for pregnancy induced gingivitis?
P. Intermedia
Gingival diseases may be modified by medications, give an example:
gingival overgrowth due to anticonvulsant drugs
List the anticonvulsant drugs that may cause gingival overgrowth:
- Phenytoin
- Immunosupressive drugs (cyclosporin)
- calcium channel blockers (Nifedipine, Verapamil, Diltiazem, and Sodium valproate)
Give an example of a gingival disease being modified by malnutrition:
bright red, swollen, bleeding gingiva associated with vitamin C deficiency
T/F: Non-plaque induced gingival disease are more common than plaque-induced gingivitis
False- less common
What category of gingival diseases encompasses lesions of autoimmune or idiopathic etiology manifesting on the gingiva?
non-plaque-induced gingival diseases
Benign mucous membrane pemphigoid, assailed with sloughing gingival tissues, & painful ulcerations of the gingiva is an example of:
non-plaque-induced gingival diseases (autoimmune/idiopathic etiology)
Gingival disease of bacterial, viral, fungal, genetic, systemic, foreign body or traumatic origins fall under what category of gingival disease?
Non-plaque-induced gingival diseases
Confined the the gingiva of a single tooth or group of teeth, affecting LESS THAN 30% of remaining teeth
Localized gingivitis