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37 Cards in this Set
- Front
- Back
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working end of the explorer
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slender, wire like, flexible metal shank and tip
single end or double end tip can be either rounded or taper to a point. |
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limitations of explorers
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pig tail doesn't get deep enough
the #3 gets deeper but doesn't seem to get under the calculus. perio probe gets deep but not good enough tactile ability to ID calculus. |
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#17 explorer
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orban type
single end non pair anterior teeth not for use in posterior teeth. |
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EXD #11/12
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posterior explorer
NOT to be used for caries detection |
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#23
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shepards hook
for decay detection ONLY evaluate margins NOT to be used for calculus detection. |
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#6
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supra gingival use ONLY due to large angulation.
caries detection |
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#3 or 3a
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curved expolorer long curved arch
fine tip universal (the 3a just has a bit longer curve) |
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#3 CH
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pig tail
supragingival use only |
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sides towards and sides away
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toward = front position
away= 10/11 |
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use of the explorer
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Rock and roll
NO finger movement |
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choosing the side you should use for the 11/12 on posterior teeth
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ther TERMINAL shank is to be parallel with the long axis of the tooth.
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using the explorer
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point the explorer tip in the direction you are going with it.
keep the tip in contact with the tooth. stay parallel to the long axis of the tooth |
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walking strokes with the expolorer
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lead with the tip
dont back up use small 1-2 mm strokes when in a healthy sulcus use a push and pull stroke in an incisal/ apical direction do NOT use horizontal or vertical strokes. |
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ROLL the handle
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learn to roll the handle in your fingers as you move around the tooth.
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sequence of recordings
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D line angle into D; readapt and move towards the M across the F and past the M line angle and into the M.
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interpretation of sensations
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normal
irregular - something extra irregular - something missing |
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normal for restorations
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smooth surface of the metal, gold, silver, or tooth colored restorations
smooth surface of the junctions of material and tooth surface. |
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normal CEJ
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overlap
line when they meet normally gap |
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something extra
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deposit
anomalies restorations |
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deposits
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spicules - feels like isolated bumps or jumps
ledge or ring grainy/ fine calculus veneer calc. - older and smoother and firmly bound to the tooth. |
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what is a furcation
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the anatomic area of a multirooted tooth where the roots diverge.
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furcation anatomy
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root trunk length
furcation entrance width degree of root separation root surface area |
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maxillary versus mandibular roots
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maxillarys have 3 and mand. have 2
the maxillary roots have 2 facial and one lingual. mandibular have 2 roots ; one mesial and one distal |
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the size difference of the root trunk on the same tooth as you move from mesial buccal to distal
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it gets bigger. smallest at the mesial aspect and largest at the distal aspect.
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mandibular molars
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2 roots ; mesial and distal roots
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root concavities
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max. 1st molars - the MB root has the > incidence
mand. 1st molars - both the mesial and distal roots have concavites. |
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root trunk length trends of mand. molars
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the lingual is > the facial
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high furcation and shorter root trunk
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greater chance of attachment loss but better prognosis after treatment; usually because you can catch it earlier.
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low furcation with a long root trunk
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less favorable prognosis; if the disease has progressed that far you are pretty much done for.
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anatomical factors ass. with furcation invasion
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cervical enamel projections - most common
furcation entrance width bifurcation ridges concavities accessory pulp canals enamle pearls cementicles furcation restoration |
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CEP
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extension of enamel from the CEJ apically to or into the entrance of the furcation
lack of CT attachment instead attachment on enamel is via a JE attachment increased plaque accumulation |
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CEP continues
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more likely on madibular molars than maxillary
highest incidence is on buccal aspect of the mand. 2nd molar followed by max 2nd molars then mand. 1st molars and last max. 1st molars. |
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enamel pearls
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less likely than CEP
consists of a clump of the enamel located in the furcation area just apical to the CEJ. presence allows for increased plaque accumulation highest incidence on Max. 2nd molars |
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bifurcation ridges
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intermediate ridges are pronounced ridges of cementum that run in a MD direction across the furcation
HIghest incidence is on Mand. 1st molars |
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scaling and root planing
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open tx (do surgery and then put tissue back onto the teeth)
closed ( numb) |
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avg. root length for maxillary and mandibular molars
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maxilla = 12.5 mm
mandibular = 14 mm. |
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ἲδιος, -α, -ον
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one's own; peculiar (masculine)
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