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