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DEN120- module 13

QuestionAnswer
What is the explorer? assessment instrument with a flexible wire like working end; used to detect subgingival calculus deposits and anatomical features
What is considered the tip of the explorer? 1-2 mm of the side
Lower shank: section of the shank nearest to the explorer tip
Pigtail/cowhorn explorers: resemble a pig tail or bulls horn, calculus detection in normal sulci or shallow pockets and extend no deeper than cervical third of tooth, disadv. is stretching of tissue away from root surface
Orban-type explorer: bend at 90 degrees to lower shank, straight lower shank; subgingival detection on anterior root surfaces, facial and lingual root surfaces of posterior teeth, disadv. is difficult to use on line angles, mesial, and distal of post. teeth
11/12 type explorer: tip bent at 90 degrees to lower shank, long complex design; no disadvantages
Assessment/exploratory stroke: used to detect calculus deposits or other tooth surface irregularities on the tooth surface
Characteristics of assessment stroke: feather like stroke, no pressure applied against tooth surface, light pressure on fulcrum, feather like pressure as working end moves over tooth surface
Steps of using orban like explorer on anterior teeth: 1. identify tip and lower shank 2. get ready zone in middle third of crown 3. slide along surface, lower beneath gingival margin, feather like strokes 4. roll, explore mesial surfaces until halfway mark
What is the sequence for exploring anteriors? explore all surfaces towards you, and then do all surfaces away
Steps of using 11/12 explorer on anterior teeth: 1. select working end (terminal 2mm touch tooth) 2. make assessment strokes across facial surface 3. roll, assess at least halfway across mesial surface 4. select working end, assess other half of tooth
Steps for exploring on mandibular posterior teeth: 1. identify tip and lower shank 2. get ready zone 3. insert beneath gingival margin, make feather like strokes towards distal surface 4. roll, explore halfway across distal surface
What is the correct way to select the correct working end for the posterior sextant being explored? lower shank is parallel to distal surface; functional shank goes up and over the tooth
What is the sequence for exploring posterior sextants? beginning at distofacial line, explore each tooth separately. for one tooth, do distal side, then continue to mesial side, then move onto next tooth
Steps of using 11/12 explorer on maxillary posterior sextants: 1. position at distolingual line angle, assess distal surface to midline 2. reposition at distolingual, assess lingual surface with feather like strokes 3. roll, assess halfway across mesial surface
Calculus deposits at line angles and midlines are most easily detected by using ___________ ___________. horizontal strokes
When working in maxillary posterior treatment areas, the solution to bending wrist is: change where handle contacts hand in grasp
When working on maxillary anterior treatment areas, bending the wrist can be fixed by: changing clock position for clinician and adjust handle position at grasp
What is the spicule calculus formation and how do I identify it? More like spots, you will feel a gritty sensation as it passes over spot; "skating over pieces of gravel"
What is ledge calculus formation and how do I identify it? line of calculus; feel tip move out and around raised bump; "skating over speed bump"
How to identify overhanging restoration: explorer moves away from tooth and over restoration
How to identify deficient margin on restoration: explorer dips in to trace restoration
How to identify carious lesion: explorer tip dips into rough depression
Types of calculus formation: Spicules, ledge, ring, veneer
Cavitated lesion: loss of outer surface layer of crown or root, needing restoration
Noncavitated lesion: result of demineralization of area of tooth surface; reversible or arrested with treatment
Created by: madelineyork
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