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!
Hi Dr Ryan, I have a question, here in Vedio you said all premolars has 2 canals, but in Bootcamp it says all premolars as 1 canal except max first Premoalr with 2 canals, I am so confused which one to learn. Please reply Thanks
@@doc-bu8ek Nope! If you go back and listen carefully, I said that "upper and lower premolars can certainly have two canals," but that doesn't mean they always do. For every premolar EXCEPT for the maxillary first premolar, having 2 canals is more common than having 1 canal. However, every premolar in the mouth is capable of having 2 canals. For more information, check out my Dental Anatomy series!
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 ❤
Great job! So informative. I've been in the GD field for 9 years, but just recently started working for an Endodontist.. I cannot believe how incredibly detailed it gets! Its super interesting.
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
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!
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.
Ah, this is a real head scratcher! I think the problem is getting caught up in the nomenclature of D1 vs. D16 and what they represent. By your logic, if we wanted to figure out the diameter of a file 1mm from the tip, the result would be 0.15 + 0.02(1-1) which would give 0.15 which is not correct because we know it should be wider than at the tip. The way you calculated it would tell you the diameter 15mm from the tip, not 16mm which is how long the cutting flutes of a traditional file go until. Does that make sense?
@@mentaldental I think you hit the nail on the head when you said the problem is in the nomenclature. So many diagrams point to the tip when they say D1, rather than just saying D0. For example: bit.ly/2DsKlqq vs bit.ly/39RfyQ6 Classic dentistry. Additionally, I feel like I remember learning it the way I explained. BUT, what you're saying is pretty undeniable lol. So I agree with you! Thanks for the response.
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!
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 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
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 ??
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!
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
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?
@@mentaldental i just wanted to ask about this, and i noticed that somebody already asked, so in distal root there is more often 1 canal :D thx for these very informative videos and keep up
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?
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?
Yes! You can get them one of two ways. You can either sign up on my Patreon page for at least $10/month www.patreon.com/mentaldental or send $30 to me directly via PayPal for the NBDE Part II slides only (or $15 for the INBDE slides only) www.paypal.me/mentaldental
In the name of Jesus i pray for restoration in my family, in our mental health. I ask for my Faith to be strengthened, i ask for success in my Career i ask for knowlege and wisdom to be better in my career i ask for healing and energy to create a better lifestyle for my entire family. I ask for covering through addictions and healing my husband so that we can be equally yoked. I ask that you draw him close to the word of God. I just ask in jesus name. My God im reaching for your hem❤
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.
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!
Hello, I´d appreciate if somebody could tell me, what does "negotiaton" mean in endodontics?
Thanks u so much Doc!!
Hi Dr Ryan, I have a question, here in Vedio you said all premolars has 2 canals, but in Bootcamp it says all premolars as 1 canal except max first Premoalr with 2 canals, I am so confused which one to learn. Please reply Thanks
@@doc-bu8ek Nope! If you go back and listen carefully, I said that "upper and lower premolars can certainly have two canals," but that doesn't mean they always do. For every premolar EXCEPT for the maxillary first premolar, having 2 canals is more common than having 1 canal. However, every premolar in the mouth is capable of having 2 canals. For more information, check out my Dental Anatomy series!
@@mentaldental Sorry about the confusion, I cleared my doubt, sorry my bad misunderstood the accent. Thanks for your reply and help 🤗
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 for leaving this wonderful comment! 😄🙏🏼
This helps me remember the color scheme.
Will - 15
You - 20
Really - 25
Be - 30
Going - 35
Back? - 40
I love it!
@@mentaldental love your videos by the way, keep up the good work, you're helping a lot of poeple out!
Can you diagnose all these cases correctly?
th-cam.com/video/MtSdKg-7ZYY/w-d-xo.html
Thank You! I've been looking for an easy way to remember this.
@@mentaldental Another way: :)
People- Pink- 6
Go-Grey- 8
Paris- Purple-10
While- White-15
You- Yellow-20
Read-Red-25
Before-Blue-30
Going to- Green-35
Bed-Black-40
Great job! So informative. I've been in the GD field for 9 years, but just recently started working for an Endodontist.. I cannot believe how incredibly detailed it gets! Its super interesting.
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
Dental nurse? Or dental assistant?
@@InkArtista-nt6zk dental nurse
I CANNOT THANK YOU ENOUGH FOR YOUR DENTAL VIDEOS. SUPPORTING YOU FROM THE PHILIPPINES. :)
Awesome! Thank you!
Um binge watching your Videos! You're a genius, sir. Please do more and thanks a million
this is the most explanatory video ive watched so far ..... thank u so much and i will look forward to more videos
Thank you for watching!
Thank you, doctor Ryan!
Such a great lecture, you made it so logical and easier to me.
Thank you Dr. Ryan for a comprehensive version of root canal treatment. Your videos are easy to comprehend. Keep going!!
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!
In my final semester of my final year. Thank you alot.
First time i can understand a topic in endodontics ,thanks doctor 💪 i love studying because of you
you're helping a lot of people out!
Great lecture! Thanks for your voice and explanations of these terms! I'll probably watch overnight.
You managed to make root canal therapy, easy to understand. Thank you :)
Thank you so much Dr. Ryan. This will definitely help with my Endodontics lab
You’re welcome. Glad it was helpful!
Love your videos, Thank you for taking out your time and making it easy for all the students appearing for boards.
What an incredible resource your videos are. Thank you!!
Thanks so much for a challenging job. all your videos are helpful.
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.
Ah, this is a real head scratcher! I think the problem is getting caught up in the nomenclature of D1 vs. D16 and what they represent. By your logic, if we wanted to figure out the diameter of a file 1mm from the tip, the result would be 0.15 + 0.02(1-1) which would give 0.15 which is not correct because we know it should be wider than at the tip. The way you calculated it would tell you the diameter 15mm from the tip, not 16mm which is how long the cutting flutes of a traditional file go until. Does that make sense?
@@mentaldental I think you hit the nail on the head when you said the problem is in the nomenclature. So many diagrams point to the tip when they say D1, rather than just saying D0. For example:
bit.ly/2DsKlqq
vs
bit.ly/39RfyQ6
Classic dentistry. Additionally, I feel like I remember learning it the way I explained. BUT, what you're saying is pretty undeniable lol. So I agree with you!
Thanks for the response.
The video is so well explained thank you so much this has helped immensely
Your voice is so good that i just want to hear it.. so i never get bored during your video.. superb job..!!
Wow thanks!!
It was amazing..i understood every single thing you explained...plz do share more such videos with us..thank a lot
Excellent presentation..thank you
Thanks doc...... i really enjoy ur videos..... its like u show us a different view of topics
Tnx
Youre the best, i want to meet you someday and appreciate your hardwork 😭😭🤍🤍💜💜💜❤️❤️
Can you diagnose all these cases correctly?
th-cam.com/video/MtSdKg-7ZYY/w-d-xo.html
Thku Ryan... It is really helpful and easy to grasp
Straight-line access to passing the INBDE! 😉💪🏾
I love it! Thank you 😁
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!
Thank you so much, Dr Ryan! 🦋🦋
Excellent explanation!
Thanks helped a lot of understanding
Thanku sir finally after searching alot got the actuall worth rct vedio
You are just amazing person !! thank you so much
Thanks Dr Ryan!
Thank you for the amazing vedio Dr. Ryan! Appreciated.
Glad you enjoyed it!
Thank you so much! I learned a lot from you!
nice and simple lecture
Thanks for watching!
Thank you so much , very well explained
So glad it was helpful! 😊
I really enjoyed watching this. Your videos have always helped me. Thank you so much.
13:03 the tip should be D0 or else .02 would not be times 16mm at D16, please correct me if i am wrong
Thank u :)
This channel is the best
Thank yo for creating this! amazing!
Best explained!
Thank you, very useful!
Glad to hear that!
Thank you its really helpful
thanks, sir for your help
Thaaaannnnnnkkkkk yyyoooooouuuuu sooooo mmmmmuuucccchhhh for all of these lectures ❤️❤️❤️❤️❤️❤️❤️❤️
You’re very welcome!
Thank you so much!! All your videos are very easy to comprehend. Muchas gracias!!!!
you are amazing!!! you have a gift!!!
Love your work 💙
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.
Yes, you are right! I have a pinned comment to address this issue, thanks for pointing it out.
@@mentaldental Wow, I really should read the comments before offering corrections. Thanks again for making these videos they are amazing!!
I saw the same thing, thanks for your comment it clarified my doubt, and thanks to Dr Ryan for his brilliant videos!!
omg this is so good, thank you so much!
Can you diagnose all these cases correctly?
th-cam.com/video/MtSdKg-7ZYY/w-d-xo.html
thank you, wonderful video !
Thanx loads ..... I took too much benefit
Badass videos, thank you so much for your beautiful blessing
Super! Thank you 👍🏻
Good job sir
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
how can you be SO good at everything in dentistry? ♥️
Thanks so much 🙏 💓
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 ??
Thank you!!
God bless u doc thank u so much
Thank you! God bless you 😀
Pink (the singer) Got Pranked With Yellow Rocket Bringing Green Blankets,
thats how i remembered the colors at first
Nice information
You are great 🌸
Thank you 😊
You are excellent 👏
Thank you! 😃
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!
Yes, you are correct! Best of luck to you!
By the mandibular molars, you have your two canals in the mesial root, not in the distal^^
you dont have to say it was too long. I could sit and listen longer
Thankkkkksssss !!!!!💜💜💜💜
More videos please
Best video!
I’m sure the diameter at the tip is d0 and not d1. That’s how I was taught. What do we think?
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
Amazing👏👏👏
The way I remember the Crown-Down technique is thinking of Biggie Smalls' famous crown picture 🤴🏾 ;)
Could you please explain to me the consequence of completing a root canal on a lower molar that is not tapered?
thank you so much
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?
@mentaldental same question here........ can you please clarify Dr ?
Or is it just a small mistake?
On 7:07, do you mean mesial root?
Yes I did mean mesial root. Thank you for the correction!
@@mentaldental i just wanted to ask about this, and i noticed that somebody already asked, so in distal root there is more often 1 canal :D thx for these very informative videos and keep up
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 ?
Yes, there are different methods of labeling those two points, and the one you mention is an alternative system.
@@mentaldental Wouldn't D16 be 0.45mm if we labeled the tip as D1=0.15?
The math makes sense if D0=0.15mm, then D16 would be 0.47mm
Love your videos!
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?
thankkkkk you so much ~.~
Thank you very much Rayan!! =^)
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?
It refers to the diameter at the tip, not 1mm from the tip.
Thanks🌷
I seriously think we should meet up,,, finding Nemo? hahah love it! your'e too cute :)
What are the reamers used for?
Around 13:00 you keep switching between saying 0.02mm and 0.2mm taper??
How to determine master apical file??
isn't the diameter of the tip called D0 not D1 ?
Both labels are used interchangeably depending on the source you refer to.
Hi can i have this slides.?how?
Yes! You can get them one of two ways. You can either sign up on my Patreon page for at least $10/month www.patreon.com/mentaldental or send $30 to me directly via PayPal for the NBDE Part II slides only (or $15 for the INBDE slides only) www.paypal.me/mentaldental
Apical seat or apical stop at 17:25?
Apical stop!
I thought the apical seat is better 😓 thank you
In the name of Jesus i pray for restoration in my family, in our mental health. I ask for my Faith to be strengthened, i ask for success in my Career i ask for knowlege and wisdom to be better in my career i ask for healing and energy to create a better lifestyle for my entire family. I ask for covering through addictions and healing my husband so that we can be equally yoked. I ask that you draw him close to the word of God. I just ask in jesus name. My God im reaching for your hem❤
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 dentists in america dont do molar endo? Strange
Some do! Most choose to refer those to an endodontist though.