Q3) How are teeth with Blocked & Ledged Canals Treated

 

Answer:-

A blocked canal contains residual pulp tissue, This debris is frequently infected, resulting in persistent disease, and must be removed if possible (Jafarzadeh & Abbott 2007).

A ledge is a type of canal transportation that results in irregular shaping on the outside of the canal curvature. The ledge makes it difficult to detect the original canal.

The best treatment for blocked and ledged canals is to prevent their occurrence.

If the clinician is careful during instrumentation, the chances for blocked and ledged canals to develop are minimized (Roda & Gettleman 2011).

Blocks and ledges may be detectible on radiographs as a root filling short of the ideal working length.

However, the short filling should not be performed in re-treatment (Farzaneh, Abitbol & Friedman 2004).

When a block or ledge is encountered, the coronal portion of the canal should be enlarged to enhance temper the tactile impression.

Frequent irrigation should be performed

to remove the debris that could block access.

dentist should be gently probed with a pre-curved

size #10 K-file to determine if there are any "sticky" or " catch " spots that could be the entrance to a blocked canal.

Frequent irrigation and use of a lubricant such as

- RC- prep

- Meta ETA CREAM

-DIA PREP PLUS

- SlickGel ES canal

enhances the ability to place a small file

into the apical canal (Roda & Gettleman 2011).

An X-file is useful for penetrating and enlarging root canals

When the negotiation with watch-winding motion results in some resistance, the clinician should continue to negotiate until further apical advancement is accomplished.

Once the apical working length is

achieved, apical patency should be confirmed using an electric apex locator.

If a sticky spot cannot be found, the clinician must consider the possible presence of a ledge. This technique is useful for ledged canals.

After detecting the original canals

shaping is performed as usual.