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19 Cards in this Set

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anatomical diff btw children and adults:
bone
IA foramen
-bone less dense
- IA foramen is below level of occlusion plane
PSA
-infrequent
-since kids bone is thinner, can infiltrate instead
-landmark and targets are smaller
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
interdental infiltration (4)
-walk anesthesia over from buccal to palatal
-perpendicular to buccal papilla
-do not bend, it can break
-palm grip for left side
palatal infiltration
-following buccal and interdental injection
-inject into mid-palatal sulcus
-esp useful if primary molar is partially resorbed
-bevel faces tooth
PDL inj
-used infrequently
-might put pressure on follicular sac and damage developing tooth
-bevel should be facing the tooth (same for adult)
color of primary compared to perm
-whiter
occlusal of primary
-more constricted than perm
2 most common reasons restorations fail
-too big
-do not conform to the shape of the tooth

(very important b/c the occlusion is changing as child grows)
Class II Rest:
indications (3)
-proximal caries (of course)
-no marginal ridge break-through
-no cervical caries
-no MOD's in primary molars!!
"watches" on primary teeth
-have to move fast. Tooth can go from incipient lesion to pulp therapy in 6 months
If you can see marginal ridge caries
-do stainless steel crown
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
slot dam technique
-no rubber dam material interproximally
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
Class II: adjacent teeth
-break cervical contact
-"spit contact" = barely break contact
Class II:
S curves
-do not do!
-weakens tooth
-greater chance of pulp horn exposure
-larger area of rest. exposed to changing occlusion
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)
nitrous: optimal dose
-30-50% @ 6 liters/minute