Paeds S4 Flashcards
What are examples of restorative materials used in paediatric dentistry?
- Fissure sealants
- Temporary & intermediate dressings (e.g. ZOE)
- Glass ionomer
- Resin modified glass ionomer
- Compomer
- Composite
- Preformed metal crowns
- (Amalgam- ban in under 15s from July 2018)
What is the restoration of the tooth based on?
Caries extent
Longevity of the tooth
Co- operation of the child
What types of crowns last longest?
preformed metal crowns
What material lasts the least?
GIC
RMGIC a bit better
What materials last a similar amount of time?
amalgam
compomer
What is the most successful restorative material in primary molars?
preformed metal crowns
What are the steps to removing and restoring cervical caries in primary incisors?
- hand excavate caries or use a slow speed handpiece with a round bur
- wash & isolate (preferably with rubber dam)
- either glass ionomer cement covered with vaseline or compomer
What are the steps to removing and restoring interproximal caries in primary incisors?
- hand excavate or use a slow-speed round bur
- wash & isolate (preferably with rubber dam)
- place an acetate strip into interproximal area and restore with compomer / composite
What bur is used for conventional crowns?
tapered diamond seperating bur
Why does rocking happen?
How to fix it?
cervical margin >1mm beyond max curvature
(stable crown 0.5mm beyond maximum curvature)
solution - adjust tooth prep
Why does canting to one side occur?
How to solve it?
uneven reduction of occlusal surface
solution - round occluso-buccal line angle
What shape is the ideal tooth prep?
rectangular - not square (extensive caries removal)
What is used in the hall technique to seperate contacts?
seperators
What is used to cement?
glass ionomer luting cement
During review, what are the minor failures that can present?
- new/secondary caries
- filling/crown worn, lost or requiring other intervention
- restoration lost but tooth restorable
- reversible pulpitis treated without requiring pulpotomy or extraction
