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
F2
In the concavity - in this furcation, we try to do regenerative surgery
F3
Through and through
At this point it is too late to do surgery
What is the goal of treatment with Horizontal Bone Loss?
Pocket reduction
Correct reverse architecture
What are the treatment options for Horizontal Bone loss?
SRP
Gingivectomy
Open flap debridement
Osseous surgery
What are the treatment goals with Angular bone loss?
Pocket reduction
Restoration of attachment
What are the treatment options for Angular bone loss?
Osseous Surgery
Guided Tissue Regeneration
What are the treatment goals of Furcation defects?
Eliminate furcation defects
Provide self-cleaning area
What are the treatment options of Furcation defects?
SRP
Open Flap Debridement
Osseous Surgery
Guided Tissue Regeneration
What type of flap is used with Osseous Surgery?
Full thickness
Apically positioned
What type of flap is used with Regenerative Surgery?
Full thickness
Coronally positioned
What type of incision is used with Osseous Surgery?
Generally scalloped (but sulcular is used if keratinized tissue is limited) Additional incisions can be made if needed to apically position
What type of incision is used with Regenerative Surgery?
Sulcular
Additional vertical incisions can be used if needed to coronally position
