Endo & Posts

Question 1

reasons that root treated teeth continue giving symptoms?

Answer 1

• PDL
• Bone
• Microorganisms
• Tooth not sterile
• Lateral/accessory canals

Question 2

clinical assessment of a tooth questions?

Answer 2

• coronal seal - restorations/crowns leakage? caries?
• is tooth restorable? rubber dam isolated?
• enough ferrule remaining?
• swelling
• sinus
• TTP
• Buccal sulcus - tender to palpation?
• Mobility
• Increased pocketing? perio disease/root fractures

Question 3

upon radiographic assessment of root filled teeth, what should be checked?

Answer 3

Question 4

what are some problems after RCT/re-RCT?

Answer 4

• lack or no ferrule
• wide post holes e.g. re-RCT
• endodontic complications - fractured instruments, perforations, short/long root fillings

Question 5

principles for restoring root treated teeth?

Answer 5

• normally massive loss of coronal tooth structure
• consider cuspal protection (onlay/crown)
• coronal seal
• prevention of fracture

Question 6

what is a core build up?

Answer 6

• internal part of tooth built-up with restorative material to replace the lost tooth tissue
• core is prepared. Provides retention and resistance for definitive restorations

Question 7

what teeth should posts be placed in?

Answer 7

teeth with long straight canals,

NOT POSTERIOR teeth (Molars)