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40 Cards in this Set

  • Front
  • Back
1) If you have an advanced perio lesion close to the apex of a tooth, how does treating the lesion affect the vitality of the tooth?
Treating a perio lesion does not affect the vitality of the tooth.
2) If you have a tooth with a perio-endo lesion, will treating it endodontically resolve the periodontal issue?
No, you will still have the perio issue.
3) What is the most common cause of failure of post and core?
Root fracture.
4) How do periodontal structures communicate with pulpal tissue?
1) Lateral canals and accessory canals
2) Apex of the tooth
3) PDL
4) Dentinal tubules (patent dentinal tubules)
5) What is the prognosis of an endo-perio treated tooth vs. extraction with implant?
Prognosis is the same.
6) What is a modified Widman flap?
Full thickness, non-displaced flap.
7) What are the features of an envelope flap?
It has no vertical incisions, provides better blood supply, but poorer access.
8) What is a nice easy suture that works well when the flaps are not in primary closure position?
Single interrupted suture.
9) What part of the mouth has the least surgical anatomy to worry about when placing implants?
Mandibular anterior.
10) T/F. A split thickness flap allows the clinician to more accurately position and suture the flap. It is considered technically difficult.
Both are true
11) How do we classify bony defects?
By the number of walls remaining. We can only tell this by opening the site and debriding.
12) What are the ideal characteristics in a bone graft material?
Biocompatible, clinically utilizable, osteoconductive, and osteoinductive (osteoinductive is more difficult to obtain, more expensive).
13) What are some examples of alloplastic grafts?
Hydroxyapatite, tricalcium phosphate.
14) What animals do we take xenografts from?
Bone comes from bovine, enamel matrix derivative comes from porcine.
15) What is the purpose of using a membrane?
To prevent faster-growing epithelial cells from growing in. We want the slower-growing osteoblasts to grow in instead. If epithelial cells move in, we will get connective tissue formation; we want angiogenic cells and fibroblasts to move in. The membranes that contain titanium are good for maintaining space.
16) What are some ‘extras’ we use in grafting procedures?
Bone morphogenic proteins, platelet derived growth factors, epithelial derived growth factors, type I collagen.
17) GTR could be a predictable mode of treatment for all of the following except?
1) Class II furcation with no mobility/vertical involvement/other complications
2) 11 mm deep 3 walled bony defect
3) Shallow, u-shaped 2-walled defect
4) Ridge augmentation
3) Shallow, u-shaped 2-walled defect
18) What is a an advantage of a two-stage implant?
Allows for soft tissue growth.
19) How close can two implants be together?
3 mm
20) What is the critical temperature to stay below during surgical implant placement?
47C
21) What is the difference between an allograft and an autograft?
An allograft is from the same species different host, while an autograft is from the same host.
22) Does a barrier membrane prevent soft tissue cells or plaque and food debris from moving into the site?
Soft tissue cells is the primary purpose.
23) What is the definition of osteoconductive?
Acts as a scaffold to support osteoblasts; it does not stimulate bone growth itself.
24) Stages of healing after extraction?
Fibrin clot -> woven bone formation -> bone turnover -> mature lamellar bone formation
25) What is the key cell line that leads to formation of osteoblasts/osteocytes?
Mast cell
26) Advantage of single stage implant?
Less healing time required
27) What is best for resective surgery?
1) 3 walled bony defect
2) Class II furcation (could be)
3) 2-4 mm 2 wall bony defect
4) 5 mm 2 wall bony defect
3) 2-4 mm 2 wall bony defect
28) What is reversed architecture (negative bony architecture)?
The interproximal crestal bone is below the level of the bone on the facial surface of the tooth.
29) How do you decide on a maintenance interval?
Plaque score, perio risk, pocket depths, BOP – specific clinical parameters
30) How do we assess the outcome of periodontal surgery?
Plaque score, clinical attachment level, zone of keratinized tissue
31) What is another word for apically positioned flap?
Pocket elimination
32) What is a MGD?
When the FGM is at or below MGJ
33) What is the recession?
When the gingival margin is apical to the CEJ.
34) What is the best access for Nabor’s probe when checking M furcation of maxillary tooth?
Mesial palatal.
35) How many furca are on a maxillary tooth?
3
36) How many furca are on a mandibular tooth?
2
37) Periodontal inflammation and presence of plaque bacterial biofilm should be controlled when?
Before the prosthetic phase
38) Simple restorative therapy (fillings) should be completed when?
Before surgery, but after scaling
39) After initial SCRP, you are prepping a crown and find yourself in the attachment – what is the best thing to do?
Send the patient for crown lengthening
40) Periodontal attachment can form to all of the following except?
1) Amalgam
2) Composite
3) MTA
2) Composite