restoration options for the root filled tooth Flashcards
what are our options when a patient comes with pulpal disease
extraction
consider RCT
what do we need to consider when doing RCT
if there is sufficient or insufficient tooth structure
what do we do if tooth structure is insufficient following RCT
over denture
what if there is sufficient tooth loss
direct restoration
describe the ferrule effect
it is the portion of the crown that encircles the remaining dentine
it is 360 degrees around the crown
what should be in the minimum ferrule length
1.5mm
what assessments do we need to consider in root filled teeth
endo assessment
periodontal assessment
coronal tissue
what is the minimum height we need for a ferrule
1.5-2mm for the ferrule q
what do we need to consider with occlusion
Tooth in occlusion?
Contribute to lateral or protrusive guidance?
Will the force by high/low in function?
why do we root seal a tooth
▪ We need to provide a biological seal to prevent reinfection of the root canal system
▪ We also need to protect the remaining tooth structure
▪ Also to maintain occlusal stability and proximal contacts to prevent overeruption or drifting
▪ Restoration of function
how do we restore
direct plastic restorations using GP and RMGIC and then amalgam/composite core
describe Nayyar type cores
Not using a post and relying on the shape of the canal which can gain retention by going into the canals
Process:
Place the GP
Then use the GG( gates gliddens) to remove 2-4mm of the GP
Thin layer of RM-GIC
Condense thin layer of amalgam/composite into the root canal
what are the issues with posts
only used to retain the core
weaken the tooth and can perforate
what are the benefits of fibre posts
→ Are aesthetic as they are metal free
→ Bond with dual and self cure resin cements and composite core materials
→ Flexural properties to those of dentine
→ Can be removed for endo revision
post is more likely to fracture than the tooth
what is the most common reason fibre posts will fail
decementation
