Review of D2 Material Flashcards
What is a rubber dam preparation technique: hole is punched for most anterior tooth and a hole punched for most posterior tooth to be isolated, then holes are connected with a slit?
Slit Dam Technique
What is the most common mistake in restoration of primary teeth?
Over-extension of preparartion
What restoration is indicated if excessive tooth structure must be removed in primary teeth?
Extracoronal restoration = stainless steel crown (SSC)
What is the depth of the preparation for a primary posterior tooth restoration?
1.0 mm
What is the width of the preparation on a mandibular first primary molar?
1/3 intercuspal distance
What is a restoration used to restore caries in a primary molar with limited involvement of the proximal surface?
Class II
Is a class II restoration indicated when proximal caries have broken through the marginal ridge clinically?
No. SSC is indicated.
What is the hardest contact to break on a primary molar class II prep and why?
Gingival contact because primary teeth have broad, flat contact.
The following indicate what restoration on primary teeth:
- Large lesions on primary teeth
- Rampant caries
- Pulp therapy
- Developmental defects
Stainless steel crown
Can a stainless steel crown be used on a permanent tooth and when (with respect to pediatric dentistry)?
Yes. Temporary restoration of young permanent tooth
Which should be done first in a SSC prep: caries removal or interproximal slices and why?
Caries removal first. Blood from interproximal slices could mask blood generated by pulp exposure during caries removal if done in reverse order?
Placing a base and liner over caries that would otherwise result in a pulp exposure, when there is no indication of a pulp exposure, there is no unstimulated or long term pain, and no signs or symptoms of pulap degeneration?
Indirect pulp cap
On what tooth type is a direct pulp cap never done?
Direct pulp cap? WTF?
What is the term for the amputation of the coronal portion of the pulp, with the reamining tissue in the roots (radicular pulp) remaining vital?
Pulpotomy
What is the appearance of the blood and time for hemostasis after a pulp exposure, either carious or mechanical in a primary toth that indicates a pulpotomy?
Red and normal blood (not necrotic)
Bleeding controlled in 3-5 minutes
How much root length must remain on a primary tooth for a pulpotomy to be indicated?
2/3 root length left
What are pulpal medicaments that can be used for a pulpotomy?
- Formocresol
- Ferric sulfate
- MTA
- Pulpectomy
Is a pulpectomy indicated in a primary tooth if there is furcation involvement or the surrounding root and bone have pathology?
No
How much primary tooth root should remain for a pulpectomy to be indicated?
1/2 of root length remains
Why is it important to keep 2nd primary molars (A,J,K,T)?
Guide eruption of 1st permanent molars