46. RCT Complications 4
Aug 18, 2020 ·
2m 37s
![46. RCT Complications 4](https://d3wo5wojvuv7l.cloudfront.net/t_square_limited_480/images.spreaker.com/original/ca7d5df87036f72477467626638005be.jpg)
Download and listen anywhere
Download your favorite episodes and enjoy them, wherever you are! Sign up or log in now to access offline listening.
Description
LEDGE FORMATION Ledge is a nick formed on the wall surface of a root canal, especially at the curves that prevent the instrument going further towards the apex- because...
show more
LEDGE FORMATION
Ledge is a nick formed on the wall surface of a root canal, especially at the curves that prevent the instrument going further towards the apex- because it gets stuck there.
Caused when instrument that is not pre-curved is inserted into the canal with excessive pressure
Take a small size file – apply EDTA & do circumferential filing for long time- it will help
smoothen out the ledge by cutting away excessive dentine.
Thereby bypass the ledge
EDTA helps dissolve & soften the area - chelation property
After correction of ledge & bypass, the wall becomes very thin, therefore chances of perforation - most important complication
Correction at furcation
a) Stop RCT
b) Place MTA / CaOH / GIC
c) Thus the form of a barrier
d) Continue with RCT
e) Or OBT only after healing
Management of perforation is done after BMP & before OBT
PERFORATION
a. At furcation / coronal 3rd – good prognosis
b. At middle 3rd / apical 3rd – poor prognosis
c. If perforation at apical 3rd – poor prognosis
d. If at furcation – best prognosis
STRIPPING
Danger zone
Mand – mesial aspect of distal root canal- inside aspect
of the curved area
Treated with MTA
Rotary instruments
Due to excessive flaring of canals
show less
Ledge is a nick formed on the wall surface of a root canal, especially at the curves that prevent the instrument going further towards the apex- because it gets stuck there.
Caused when instrument that is not pre-curved is inserted into the canal with excessive pressure
Take a small size file – apply EDTA & do circumferential filing for long time- it will help
smoothen out the ledge by cutting away excessive dentine.
Thereby bypass the ledge
EDTA helps dissolve & soften the area - chelation property
After correction of ledge & bypass, the wall becomes very thin, therefore chances of perforation - most important complication
Correction at furcation
a) Stop RCT
b) Place MTA / CaOH / GIC
c) Thus the form of a barrier
d) Continue with RCT
e) Or OBT only after healing
Management of perforation is done after BMP & before OBT
PERFORATION
a. At furcation / coronal 3rd – good prognosis
b. At middle 3rd / apical 3rd – poor prognosis
c. If perforation at apical 3rd – poor prognosis
d. If at furcation – best prognosis
STRIPPING
Danger zone
Mand – mesial aspect of distal root canal- inside aspect
of the curved area
Treated with MTA
Rotary instruments
Due to excessive flaring of canals
Information
Author | DrMayakha Mariam |
Organization | DrMayakha Mariam |
Website | - |
Tags |
-
|
Copyright 2024 - Spreaker Inc. an iHeartMedia Company