Q&A Comments: When to measure the Working Length early or late?

[@kavityphiller4891]

Wave One makes “crown down” and “step wise” obsolete- love the wave one! I take wls right after patency, then, if the apex locator was acting wonky, or curved canals that may become somewhat straighter during instrumentation, take a second WL early into instrumentation and then, unless really sure, verify wls just before irrigation- it takes maybe a minute to recheck/verify with the locator, but will absolutely make or break the endo-

[@ramalkallas]

your naaaaaame🤣

[@SRAKA45-g4t]

great point! thank you

[@drmahanthashok3685]

I have been doing the crown down technique for some time now. Taking WL later after widening coronal 1/3 and 2/3. Life has been so stress free for me now. Very less post operative pain. Very rare file separation. So for all the dentists, immediately after access opening straight away start with the SX rotary, next use 20-4 or 20-6 till apical 2/3 with lot of irrigation. Then you can take WL. Now just 1 more step to go. Happy Endo

[@gautamdubey9876]

And how about using 10 or 8 k files in between those files which you mentioned?

[@drmahanthashok3685]

@@gautamdubey9876 that goes without saying bro. Of course we should use 8 or 10 after each file just to make sure apex is not blocked

[@gautamdubey9876]

Thanks brother actually was bit confused want to ask another thing after done using 8 and 10k files shall I go through with the steps which you mentioned here and which rotary file you use for both curve and calcified canals

[@alecgaroian1661]

Hello Doctor! In regards to measuring WL correctly what line/color do you usually use as a safe and consistent WL? For example I use a Morita Root ZXII and was taught in dental school to go to the middle of the green lines (where the green arrow points), after graduating I did some researching and saw many endodontists (such as Dr. Ricucci kzbin.info/www/bejne/enmaoIKFn9ljm6c) recommend going to the last blue line since that is the apical constriction and they claimed anything more will actually be in the foramen and technically in the PDL. This way of going to the end of the blue usually has radiographic WL at 1-1.3mm short of radiographic apex. I would love to hear your recommendation.

[@yuxiangwang179]

thanks for sharing

[@vikasdeep4428]

Good evening sir....if in small canal we measure working length later on then the concept glide path apply at which stage of cleaning and shaping of root canal?

[@AANasseh]

The Glide Path concept is then replaced with the concept of Available Length! That’s an old video I made before but will elaborate again in a future video. Cheers!

[@vikasdeep4428]

@@AANasseh Yes Sir.

[@rupeshpachagade3269]

In case of j Morita mini preparation should stop at end of blue zone or 1mm short from apical line of apex locator which criteria is better

[@AANasseh]

@@rupeshpachagade3269 it depends where you practice and what kind of length is acceptable. There’s no universal answer but that which you have learned. I stop at 0.5mm line and it seems to work fine.

[@harshsharma7057]

Sir which better rct single sitting vs multiple in a irreversible pulpvitis cases for general dentist

[@martinchrom4444]

If you can instrument the canal and remove all the tissue fast enough, the canals are not bleeding and you have the time to fill the canals then single. If the instrumentation takes long time, you and your patient are tired and a next patient is comming soon, then I'd fill it next time