Periodontology Flashcards
Which fibers are apical to junctional epithelium; extend obliquely from cementum to alveolar bone?
Alveolar crest fibers
Which fibers extend at right angles to long axis of the tooth?
Horizontal fibers
Which fibers extend from apical aspect of cementum to base of the tooth socket?
Apical fibers
Which cells are the MOST prominent cell in the PDL; responsible for collagen synthesis and degradation?
Fibroblasts
Which gingival disease is associated with plaque only?
Dental plaque induced gingival disease
What are 2 specific causes of gingival inflammation?
- open contacts
2. subgingival margins of restorations
Gingivitis results from what?
ulceration at the base of the sulcus
What 4 microbes are MOST often associated with NUP and NUG?
- Spirochetes
- Fusobacterium
- Prevotella intermedia
- Porphymonas gingivalis
Which abscess results from the injury to or infection of surface gingival tissue?
Gingival abscess
Which abscess results when infection spreads deep into periodontal pockets and drainage is blocked (food impaction, calculus, etc.) *may develop after periodontal debridement
Periodontal abscess
Which abscess develops in inflamed dental follicular tissue overlying the crown of a partially erupted tooth (most often mandibular 3rd molars)?
Pericoronal abscess
Which abscess results from pulp infection (usually second to deep tooth decay)?
Periapical abscess
A mild pulpal inflammation usually resulting from placement of a deep restoration; associated with episodic temp related pain which improves with deposition of reparative dentin is called?
Reversible pulpitis
Is marginal tissue stippled in periodontitis?
no
What type of organisms grow in an environment containing atmospheric levels of oxygen?
aerobic organisms
What type of organisms grown in an environment which lacks oxygen?
anaerobic organisms
What is the most common perio pathogen?
Porphymonas gingivalis
What two microbes are MOST often associated with periodontal inflammation during pregnancy?
P. intermedia and C. rectus
What makes up the bulk of plaque biofilm and functions to hold bacteria together in a biofilm?
Extracellular matrix
What are found in the acquired pellicle?
glycoproteins
The oral physiotherapy aid MOST suited for removal of loosely adherent plaque is what?
Oral irrigator
What bacterial product is associated with Gram negative bacteria and can harm PMNs?
Endotoxins
What is a bacterial waste product called?
Exotoxin
Clinical signs of gingivitis appear during what stage of periodontal lesions?
Stage 2 (4-7 days)
List the 7 hemodynamic events of inflammation
- Vasoconstriction
- Vasodilation
- hyperemia
- margination
- pavementing
- diapidesis/emigration
- edema
The movement of cells to the site of inflammation is called what?
Chemotaxis
Excessive force on tooth with normal bone support is called?
Primary occlusal trauma
Normal or excessive force on tooth with loss of support is called?
Secondary occlusal trauma
Increased mobility, tooth migration, sensitivity and radiographic widening of the PDL are signs and symptoms of what?
Occlusal trauma
Enlargement due to an increase in cell size is called?
hypertrophy
Enlargement due to an increase in cell numbers is called?
hyperplasia
What regenerative procedure uses barrier membrane to block migration of epithelial cells?
Guided tissue regeneration
The main reason people receive regenerative procedures is to treat what?
infrabony defects
What cause swelling, pain and inflammation?
prostaglandins
What cause inflammation, bronchoconstriction, airway obstruction and increase cellular infiltration and cytokine release (including interleukins)?
leukotrines
What represents a loss of alveolar bone (typically on the facial aspect) that leaves a characteristic oval, root-exposed defect from the CEJ apically (the defect may be 1-2mm long or may extend the full length of the root
dehiscence
List 3 characteristic features of dehiscence
- gingival recession
- alveolar bone loss
- root exposure
A window of bone loss on the facial or lingual aspect of a tooth that places the exposed root surface directly in contact with gingival or mucosal tissue is called?
fenestration
