Ostectomy/Osteoplasty Flashcards
Purpose of resective osseous surgery:
1) Eliminate osseous defects from periodontitis with pronounced, irregular bone loss.
2) Correct anatomic defects like exostoses or bony architecture that prevents good plaque control.
Most common walled defect associated with chronic periodontitis.
2 -walled
In healthy teeth, how far away should the alveolar bone be from from CEJ?
1-2 mm
Another name for a 2-walled defect.
Osseous crater bc just the buccal and lingual walls are present, and there’s a loss of bone between those two walls.
T/F:
Poor oral hygiene is a contraindication for osseous surgery.
TRUE!
Poor oral hygiene is a contraindication for any surgery bc you don’t want oral pathogens entering the systemic circulation.
If there’s severe alveolar bone loss, should we do ressective osseous surgery?
NO!
Doesn’t make sense to take away more bone if there’s already bone loss.
Ressective osseous surgery increases ______ sensitivity.
root
Treatment for root sensitivity.
Sensodyne or Topical Fluoride treatment,
In what location in the arch is ressective osseous surgery contraindicated?
Anterior bc it compromises esthetics by creating black triangles.
Typical tx for patients that have so much bone loss that an ostectomy is contraindicated.
Splinting.
If lower anteriors have B mobility and a ton of bone loss, splint from canine to canine (canines are more stable).
Osseous surgery where:
1) Osseous defects are corrected.
2) Achieve positive or at least neutral architecture.
3) Used for shallow to moderate bony defects (2-3 mm).
4) For one or two-walled defects.
Definitive Osseous Surgery
Two types of osseous surgery.
Definitive or Compromised.
Definitive osseous surgery is used for what kinds of osseous defects?
Shallow (2-3 mm)
Osseous surgery in which the osseous defects can be improved, but cannot be completely corrected without removing so much bone that teeth would be jeopardized.
Compromised osseous surgery.
Can’t get positive osseous architecture with this kind of osseous surgery.
Compromised osseous surgery.
When interdental bone is CORONAL to the radicular bone.
Positive architecture
The alveolar crest is parallel to the ______.
A line drawn between adjacent CEJ’s.
Important for food to roll off the labial surfaces and gingiva.
Interproximal sluiceways.
Scalloping of the alveolar bone increases or decreases as we go from anterior to posterior?
Decreases
Shape of the interdental bone in the anterior?
Pyramidal
and flattens as you go posterior.
Osseous recontouring is most predictable in people with what kind of periodontitis?
Mild to moderate
Reduces both attachment and alveolar bone.
Osseous surgery.
Is short-term pocket depth reduction better with or without osseous surgery?
WITH!
Are subgingival pathogens eliminated better with or without osseous surgery?
WITH!
