Quick correction! At 7:06 I meant to say the mesial root usually has 2 canals (not the distal canal). The diagram shows this correctly. Thanks for watching!

This helps me remember the color scheme. Will - 15 You - 20 Really - 25 Be - 30 Going - 35 Back? - 40

I’m a dentist with one year experience now but I’ve been following you since I was a student. I just want to say a BIG THANK YOU for these videos, I’ve learned so much about dentistry only from watching your videos ❤

Thank you Dr. Ryan for a comprehensive version of root canal treatment. Your videos are easy to comprehend. Keep going!!

Thank you, doctor Ryan! Such a great lecture, you made it so logical and easier to me.

Um binge watching your Videos! You're a genius, sir. Please do more and thanks a million

I made a song " white - Yellow - red - blue - green - black" !!! hahahahaaha!!! Thank you Dr.Rian for all that content! You help me a lot! God bless you!

this is the most explanatory video ive watched so far ..... thank u so much and i will look forward to more videos

Great lecture! Thanks for your voice and explanations of these terms! I'll probably watch overnight.

First time i can understand a topic in endodontics ,thanks doctor 💪 i love studying because of you

Thank you so much for this. I'm a student dental nurse. This really helps me to understand what is going on, and support the dentist more effectively. X

you're helping a lot of people out!

I CANNOT THANK YOU ENOUGH FOR YOUR DENTAL VIDEOS. SUPPORTING YOU FROM THE PHILIPPINES. :)

What an incredible resource your videos are. Thank you!!

The video is so well explained thank you so much this has helped immensely

It was amazing..i understood every single thing you explained...plz do share more such videos with us..thank a lot

Love your videos, Thank you for taking out your time and making it easy for all the students appearing for boards.

You managed to make root canal therapy, easy to understand. Thank you :)

You are just amazing person !! thank you so much

Thank you so much!! All your videos are very easy to comprehend. Muchas gracias!!!!

Thanks doc...... i really enjoy ur videos..... its like u show us a different view of topics Tnx

Thanks so much for a challenging job. all your videos are helpful.

Thank you so much, Dr Ryan! 🦋🦋

you are amazing!!! you have a gift!!!

Thku Ryan... It is really helpful and easy to grasp

Your voice is so good that i just want to hear it.. so i never get bored during your video.. superb job..!!

Thanks Dr Ryan!

Excellent explanation!

Love your work 💙

Excellent presentation..thank you

Thank you so much! I learned a lot from you!

Thanku sir finally after searching alot got the actuall worth rct vedio

thanks, sir for your help

Thank you so much Dr. Ryan. This will definitely help with my Endodontics lab

Thank yo for creating this! amazing!

Thank u :) This channel is the best

Thanks helped a lot of understanding

thank you, wonderful video !

In my final semester of my final year. Thank you alot.

Best explained!

Thank you its really helpful

Super! Thank you 👍🏻

Thankkkkksssss !!!!!💜💜💜💜

omg this is so good, thank you so much!

Badass videos, thank you so much for your beautiful blessing

Thank you 😊

Thank you for the amazing vedio Dr. Ryan! Appreciated.

Thanks so much 🙏 💓

Thank you!!

Nice information

You are great 🌸

Good job sir

thank you so much

Thanx loads ..... I took too much benefit

Best video!

Thank you so much , very well explained

Thank you, very useful!

nice and simple lecture

Dear Dr. Ryan, The access opening for a mandibular molar is trapezoidal in shape A- To establish straight-line access B- Due to the shape of the crown C- To include any remnants of pulp horns within the access opening D- To facilitate the final restoration of the access opening (you have mentioned both A and D in the first slide, which would be the best response)? Thank you so much!

Amazing👏👏👏

Thank you very much Rayan!! =^)

Thaaaannnnnnkkkkk yyyoooooouuuuu sooooo mmmmmuuucccchhhh for all of these lectures ❤️❤️❤️❤️❤️❤️❤️❤️

Thanks🌷

Youre the best, i want to meet you someday and appreciate your hardwork 😭😭🤍🤍💜💜💜❤️❤️

Straight-line access to passing the INBDE! 😉💪🏾

God bless u doc thank u so much

thankkkkk you so much ~.~

Could you please explain to me the consequence of completing a root canal on a lower molar that is not tapered?

You are excellent 👏

Great video! EDIT: the rest of this comment is poppycock. Ignore it. One correction: The formula to find the diameter of a file at a given point should be: File size + Taper*(Dx-D1) So a size 15 would be: 0.15 + 0.02*(16-1) = 0.45 If we just multiply the 16 by 0.02, we're neglecting the fact that we label the tip as D1, rather than D0. In other words, starting at D1, we increase by 0.02mm 15 times to get to D16. That means .30mm on top of the starting 0.15mm. I though really hard about this, but feel free to correct me. I'll delete this if you convince me I'm wrong lol.

Hello, I wanted to ask something. I need to have root canal treatment at the dentist, but I have never had local anesthesia before. My doctor told me that I should do an allergy test and gave me the medicine he used (ultracain) how is the allergy test done for this drug?

Thanks so much for your videos! They are amazing! One thing I did notice in this video though is at 7:06 when talking about the canals of the mandibular molars, you say the distal root usually has 2 canals, but the diagram correctly shows the two canals in the mesial root.

I really enjoyed watching this. Your videos have always helped me. Thank you so much.

Hello Dr Ryan I am a final year dentistry student and actually had a question in regards to the ZOE sealer used. In the Europe ( Prague, CZ to be specific) they teach us to use neo-MTA (preferred but more expensive) or resin sealers (esp Epoxy resin type) and they told us ZOE lasts only for a few years. Here ZOE is recommended for temporary teeth only (used without GP) I wanted to ask why ZOE is preferred in the USA and clinically does it actually last for a few years only? Looking forward to hear from you

how can you be SO good at everything in dentistry? ♥️

13:03 the tip should be D0 or else .02 would not be times 16mm at D16, please correct me if i am wrong

More videos please

Around 13:00 you keep switching between saying 0.02mm and 0.2mm taper??

Step Back Technique involves preparation of the apical third initially ...The one which you have mentioned is Hybrid Technique.. (some books say this ) which one is correct Dr.Ryan ??

dr ryan thank you for the amazing videos. one question, doesn't file size 15 for example mean that the diameter is 0.15mm, at a 1mm distance from the tip? rather than at the tip please?

Pink (the singer) Got Pranked With Yellow Rocket Bringing Green Blankets, thats how i remembered the colors at first

Thank you Dr.Ryan ,12:00 but what I know that D0 represents the diameter at the tip ,and D1 is 0.17 in this example .. Are they different systems ?

I seriously think we should meet up,,, finding Nemo? hahah love it! your'e too cute :)

How to determine master apical file??

What are the reamers used for?

The way I remember the Crown-Down technique is thinking of Biggie Smalls' famous crown picture 🤴🏾 ;)

On 7:07, do you mean mesial root?

I don't understand why you mention that the diameter at the tip is D1 instead of D0. All file manufacturers identify the tip diameter as D0. D1 should be 1mm from the tip and in the case of a 15 file with a .02 taper, the diameter would be 0,17mm. Please expand?

At 7.09 did you mean mesial root of the lower molar that has 2 canal? Im having Thai board exam next week! Your video helps me a lot thanks for greats video!

By the mandibular molars, you have your two canals in the mesial root, not in the distal^^

I have a pneumonic from my endodontic faculty: Starting from the 15-file of course... "What You Really Blew Gets Better" What = White You = Yellow Really = Red Blew = Blue (duh) Gets = Green Better = Black

I’m sure the diameter at the tip is d0 and not d1. That’s how I was taught. What do we think?

you dont have to say it was too long. I could sit and listen longer

isn't the diameter of the tip called D0 not D1 ?

Apical seat or apical stop at 17:25?

Hi can i have this slides.?how?

General dentists in america dont do molar endo? Strange

Chlorhexidine as an irrigant in endodontics. The evidence for its use is sketchy. It doesn’t dissolve a biofilm but has a good antibacterial and antifungal action. Ng et al 2011 found the 0.2% CHX actually decreased success - is this because the concentration was so low and it had only the undesirable effects like binding to walls and preventing a seal ? Or interactions with other irrigants and medicaments such as hypochlorite. Regardless if you use CHX it should be at least 2% and no less !! It’s effect on E Faecalis might be of some use- but how often does a Retreatment done to a good standard with full instrumentation and irrigation of all canals fail because the bacteria in the canals were resistant ???? In my experience almost never. The most common reason for failure of any root canal treatment is anatomy which is not located. Resistant bacteria doesn’t make the top 5 reasons for failure. I occasionally use 2% CHX if I suspect a perforation prior to it being repaired and then after this at the next appointment resort back to my 6% sodium hypochlorite. You shouldn’t mix CHX and hypochlorite. This produces a brown precipitate thought to be parachloroaniline which stains teeth and is carcinogenic. EDTA and CHX produces a white precipitate and this neutralises both irrigants. So always use hypochlorite or EDTA first if you intend to use CHX at the same appointment and then rinse with saline before using chlorhexidine.

💜❤

General dentist