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19 Cards in this Set
- Front
- Back
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anatomical diff btw children and adults:
bone IA foramen |
-bone less dense
- IA foramen is below level of occlusion plane |
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PSA
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-infrequent
-since kids bone is thinner, can infiltrate instead -landmark and targets are smaller |
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maxillary infiltration:
bone density location, depth is followed by amount |
-very porous
-2,3 mm at muco buccal fold -interdental infiltration then palatal, or palatal injection as indicated (for palatal root) -1/3 carpule |
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interdental infiltration (4)
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-walk anesthesia over from buccal to palatal
-perpendicular to buccal papilla -do not bend, it can break -palm grip for left side |
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palatal infiltration
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-following buccal and interdental injection
-inject into mid-palatal sulcus -esp useful if primary molar is partially resorbed -bevel faces tooth |
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PDL inj
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-used infrequently
-might put pressure on follicular sac and damage developing tooth -bevel should be facing the tooth (same for adult) |
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color of primary compared to perm
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-whiter
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occlusal of primary
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-more constricted than perm
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2 most common reasons restorations fail
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-too big
-do not conform to the shape of the tooth (very important b/c the occlusion is changing as child grows) |
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Class II Rest:
indications (3) |
-proximal caries (of course)
-no marginal ridge break-through -no cervical caries -no MOD's in primary molars!! |
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"watches" on primary teeth
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-have to move fast. Tooth can go from incipient lesion to pulp therapy in 6 months
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If you can see marginal ridge caries
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-do stainless steel crown
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MOD preps in primary teeth (3)
exception |
-WE DON'T DO
-occlusion is changing, so MOD's will ultimately fail -exception is if the tooth is w/in a year of exfoliating |
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slot dam technique
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-no rubber dam material interproximally
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Class II:
bur avoid creating cleavage plane by axial wall avoid |
-330 for almost all of it
-round axial pulpal line angle -slightly undercut -oblique/transverse ridges |
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Class II: adjacent teeth
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-break cervical contact
-"spit contact" = barely break contact |
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Class II:
S curves |
-do not do!
-weakens tooth -greater chance of pulp horn exposure -larger area of rest. exposed to changing occlusion |
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Stainless Steel Crown:
bur occlusal reduction margins line angles |
-169, 169L, or 56
-1.5-2mm everywhere -knife edged. End of bur should be below contact (so that only side is cutting :. no ledge formed) -rounded (on occlusal surface) |
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nitrous: optimal dose
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-30-50% @ 6 liters/minute
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