Osseous Defects Flashcards
What are the different etiologies of alveolar bone loss
Extension of gingival inflammation
Trauma from occlusion
Systemic disorders
How does gingival inflammation enter the alveolar bone?
1) It extends along the collagen fiber bundles
2) Follows the course of the blood vessels
3) It enters the alveolar bone
If teeth are >2.5mm apart, what type of osseous defect do we get?
Vertical
If teeth are
Horizontal
Bone loss due to periodontal disease is caused by what?
Loss of physiologic bone equilibrium
Bone loss in perio disease occurs when destruction overtakes formation
T/F - Bone formation always occurs in areas of bone resorption
True
Random burst model of disease progression
Disease is episodic
There are periods of exacerbation and remission of bone loss
When does buttressing bone form?
It is a growth of bone that attempts to “support” weak bony trabeculae
Central buttressing bone formation
Occurs within the jaw
Difficult to see clinically
Peripheral buttressing bone formation
Occurs on the external surface of the jaw
Creates a deformity in the overlying mucosa
Looks like a ledge
Severe plaque trap
What does horizontal bone loss lead to?
Suprabony pocket
What does angular bone loss lead to?
Infrabony pocket
What determines what type of surgery we do?
The type of infrabony defect
F0
No furcation involvement
F1
Can feel concavity - not catching yet