5. Resective Osseous Surgery Flashcards
What is the most predictable pocket reduction technique?
Osseous Surgery
Where is Osseous Surgery indicated?
Posterior Areas
What does osseous surgery improve, and at what expense?
Improve tissue contours for easier maintenance but at expense of some attachment loss
What is the interdental osseous form in the anterior, and how does it change in the posterior?
Thinner and more conical in anterior, which becomes flatter and broader in molar areas
What is an osteoplasty?
Removal of non-supporting bone
What is used for the elimination of circumferential defects?
Osteoplasty
What is an Ostectomy?
Removal of supporting bone
What is the treatment for reduction of hemi septum (1 or 2 wall defect, usually a molar)?
Ostectomy
What is the treatment for correction of reverse architecture?
Ostectomy
What is the tx for one-wall defects?
Osseous Resective Surgery
What is the tx for three-wall defects?
Regeneration (especially narrow defects)
What is the tx for two-wall defects?
Either method (resective or regenerative) depending on the depth, width and configuration
What does the biologic width include?
CT + JE = 2mm
What does the dentogingival junction include?
CT + JE + Sulcus
~ 3mm from crest of bone to gingival margin
What is the minimum distance coronal to the alveolar crest, necessary to permit healing and proper restoration fo the tooth?
3mm
What is the treatment of Type IA Altered Passive Eruption?
Gingivectomy
What is the treatment of Type IB Altered Passive Eruption?
Osseous resection and gingivectomy
or
Osseous resection and scalloped inverse-bevel flap positioned to the CEJ
What is the treatment of Type IIA Altered Passive Eruption?
Apical Positioned Flap
What is the treatment of Type IIB Altered Passive Eruption?
Apical Positioned Flap with Osseous Recontouring
Where is the osseous scallop the greatest?
Maxillary anterior teeth
avg. = 3.5 mm
What is the ideal crown:root?
2:3
What is an acceptable crown:root?
1:2
What is the minimum crown:root?
1:1
What is the most important RF for further loss of attachment?
Previous history of loss of attachement
Is there and increased risk of root fracture with CAL?
yes
What are the contraindications to orthodontic extrusion?
Short root length + Poor root form = inadequate crown:root following extrusion
