Unit 2: Overview of Diseases of the Periodontium Flashcards
What are the three stages of the periodontium?
Health
Gingivitis
Periodontitis
Healthy sulcus characterisitics
JE coronal to the CEJ
Supragingival fibers intact
Alveolar bone intact
Periodontal ligament intact
What is the pathogenesis when referring to gingivitis and periodontitis?
The sequence of events that occur during the development of a disease
A bacterial infection confined to the gingiva
Gingivitis
Irreversible tissue damage, gingivitis or periodontitis?
Periodontitis
Reversible destruction to the tissues of the periodontium
Gingivititis
A bacterial infection of all parts of the periodontium
Periodontitis
How do we distinguish between the three stages of the periodontium?
Charactertistics of the epithelial-connective tissue junction
Position of the junctional epithelium
Position of the crest of the bone
Gingivitis/gingival pocket characterisitics
JE at the CEJ
Supragingival fiber destruction
Alveolar bone intact
Periodontal ligament intact
Gingivitis is chatacterized by its clinical changes of:
Colour
Margin contour
Papilla contour
Consistancy
Bleeding
What is a key indicator of the presence of gingivitis?
Bleeding on probing and exploration
Gingivitis probing depth
Greater than 3mm
What is a pseudo pocket or false pocket?
There is no apical migration of the junctional epithelium
What causes increased probing depths of gingival pockets?
Detachment from the coronal portion of the JE from the tooth
Increased tissue size due to swelling of the tissue
Periodontal pocket chracteristics
JE on cementum
Supragingival fiber destruction
Alveolar bone destruction
Periodontal ligament destruction
Periodontitis is a type of periodontal disease which is characterized by the clinical changes of
Apical migration of the junctional epithelium
Loss of connective tissue attachement
Loss of alveolar bone
Periodontitis characteristics
Change in colour
Bleeding on probing or suppuration
Probing depths of 4mm or greater
JE on cementum
Supragingival, alveolar bone, and periodontal ligament destruction
In periodontitis extension of the epithelial ridges occur due to
The destruction of gingival fibers which creates space for the epithelium to grow into.
In health, the crest of the alveolar bone is located approximately _____ apical to the cementoenamel junction
2mm
In periodontitis, the crest of the alveolar bone is located ____ than ____ apical to the cementoenamel junction.
More than 2mm
Bone destruction may eventually lead to
Tooth mobility or loss
Most common pattern of bone loss is
Horizontal
Vertical pattern bone loss results in
A trenchlike area of missing bone alongside the root
What is it called when there is a pathological deepening of the sulcus resulting from apical migration of the JE, destruction of the PDL fibers, and destruction of the alveolar bone?
Periodontal pocket
What are the two types of peridontal pocket?
Suprabony
Infrabony
How is the type of periodontal pocket determined?
Based on the relationship to the JE to the crest of the alveolar bone
Which type of periodontal pocket is this?
Suprabony (Horizontal bone loss)
Which type of periodontal pocket is this?
Infrabony (Vertical bone loss)
What type of periodontal pocket has bone resporption in an uneven, oblique pattern that affects one tooth?
Infrabony
What is this diagram showing?
One-wall infrabony defect
What is this diagram showing?
Two-wall infrabony defect
What is this diagram showing?
Three-wall infrabony defect
What is it called when a contour of bone from the facial to the lingual dips apically forming a bowl-shaped crater which affects two adjacent root surfaces?
Osseous Crater
What are the furcation involvement classes?
1
2
3
4
