L.6.7.8.9 Restoration of Primary Teeth, Sealants, RD Flashcards
Anterior pedo teeth are more ______ in their contours
rounded
What physiologic tooth pathology is common in primary teeth?
attrition (c/o growing jaw)
Indications for a Class ___? anterior proximal surface caries, lesions must be small, incisal edge not involved
Class III
Is a RD clamp necessary for Class III?
Not always (can use the oath tie)
2 principles of Class III preps in pedo are a ______ for retention and leave the _____ wall intact
dovetail…lingual/facial (whatever is opposite your prep) wall
How many dovetails are indicated for a Class IV prep?
2 (B and L)
How often is a Class IV done on Pedo teeth?
VERY SELDOM (NEVER DONE)
What does ITR/ART stand for?
Interim Therapeutic Restoration/Alternative Restorative Technique
minimal lesions, young children, caries control are all indications for what type of Tx?
ITR/ART
Do you use anesthetic with an ITR/ART?
Not usually
What material do you use for ITR/ART?
GLASS IONOMER
Do you leave any caries for an ITR/ART?
YES, you can…minimal preparation
How much enamel is present pre-op for a strip crown?
50%
How much incisal reduction is needed for anterior strip crown?
1-1.5mm
How much facial reduction is needed for an anterior strip crown?
1.0mm
How much lingual reduction is needed for an anterior strop crown?
0.5mm
How does the margin of your strip crown relate to your cervical ditch?
Make sure margin is cervical to the ditch!
How much incisal reduction is needed for a SSC in the anterior?
1.5 - 2mm
For acrylic faced SSC (Kinder____ and Nu____ crowns) you just reduce until it fits!
KinderCrowns…NuSmile
What are the two downsides to Acrylic Faced SSCs?
bulky and fragile
Which anterior crown option is this describing? more chair time, ok esthetics, greater durability, easy to repair…
Composite Window
What % of Primary caries are pit and fissure?
44%
Longevity! Sealants after 15 years ___% of teeth had NO CARIES!
74%
When placing a sealant: poor isolation = poor _______
poor retention
What is the benefit of using bond on a sealant?
Significantly LESS leakage!! (retention not affected)
What does CAR/PRR stand for?
Conservative Adhesive Restoration / Preventative Resin Restoration
A CAR is a combination of both _______ and _______
sealant and a composite
CAR Type ___ =prep into dentin, fill with flowable
CAR Type II
CAR Type __ =prep in enamel, fill with sealant
CAR Type I
CAR Type ___ = prep into dentin, fill with packable
CAR Type III
Flowable composite shrinkage is ____% greater than normal composites
25%
Primary enamel rods in the GINGIVAL third of crown extend toward ________ in contrast to permanent cervical extension
occlusal
Primary-constricted crown; _______ occlusal table; prominent cervical contour
narrow
What are the two types of rubber dam clamps used in class II restorations?
26n or w8a
Class II prep-B and L walls are ___ degrees to enamel
90 degrees (no S curves)
Studies evaluating the durability and life span of SSCs and class II amalgams demonstrate the superiority of ________ for both parameters
CROWNS
SSC Vs Amalgam: Crowns placed in children 4 years and younger have a success rate approximately _____ that of amalgams for each year up to 10 years
TWICE!!
Rule of 4: A child less than ___ years of age with interproximal posterior lesions.
Any child with more than ___
interproximal posterior lesions.
4, 4
Trim your SSC until its __mm BELOW the marginal gingiva at the level of the _____
1mm…CEJ
When preparing the pre-fab SSC, ______ the crown FIRST, THEN _____ second
COUNTOUR…then…CRIMP
When seating the SSC do so in a ______ to _____ direction
lingual to buccal
What type of PLIER can be used to flatten the proximal wall of a SSC?
HOWE plier
indications for RD: Most _______ procedures, and
ALL ________ in primary teeth…
restorative…pulp therapy
With small kids leave excess RD in which area?
excess at the bottom
What are the two common clamps for partially erupted teeth?
14A, 8A
What are the two common clamps for second primary molars?
26,27
General Sequence principles: work from _____ to _____ when doing more than one tooth
distal to mesial
Sequence: do all _____ first, before ______
preps…restoring
BOOM! What do you do first: SSC or Amalgam?
SCC first (todays exercise)
BOOM! What do you do first: SSC or Composite?
COMPOSITE!!