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- เผยแพร่เมื่อ 28 ก.ย. 2024
- This is a demonstration for dental students showing the steps of tooth preparation to receive an All Ceramic Crown.
A video by Crowns & Bridges Department, Faculty of Oral Medicine, Al-azher University.
For more information, visit www.cbd.azhar.e...
The instructional video would be more complete if the authors:-described the amount of depth reduction they aimed for as they did it-showed how to verify adequate palatal fossa reduction for the ceramic thickness needed for function, and-either showed or described what they did to the completed prep between 'unfinished' and 'finished'.
We will consider this in our upcoming work.
Thanks for the constructive review. :)
U look like jhonny sins dude
@@entrepreneur2152 lmao🤣🤣🤣
Thank you for sharing the video. The image quality is great! I wish if you can provide information on: 1. Bur type used and number. 2. Depth in different preparation steps. I felt this part is missing and it is important to know.
please show us the finishing also.
I've shared this video with all my friends.
Please complete video by finishing the preparation and also leave in description box details of Burs used thanks
Would you not increase the taper slightly as the proximal walls are too parallel? Also would you also round off the incisal line angles?
Thank you for your effort very helpful video
How to do a good finishing for the surface and finish line with out making irregularities while using low speed, and which stones is preferred ? ty in advance =) and nice video very helpful
Thank you Mohammed. For finishing your preparation you can use fine grit diamond or carbide burs. For finishing the finish line you can use hand cutting instruments (eg. enamel chisel ) after using the finishing burs. For further finishing you can use silicon tips; it will give you a very finish and lustrous surface.
Please mention the details / measurements with the video too.
Not bad if U wrote on video about kind و burs, which U used. Thx for video🙏
How long do you think it takes to prepare a tooth for a crown ?
5-7 minutes
sure
you are welcome
Amazing working dr's
I been in dentistry for over 20 years im an assistant.. sadly my new dr (he’s 78 years old) his hand shakes constantly and i think he has parkinson disease he doesn’t do a very good job at anything.. he claims to be the best dentist in the world, but the last time i was honest with him because he did asked me , isn’t it a great prep.. I said honestly no because the pt keeps biting on the occlusal surface, on my temporary and it needs to be taken adjusted a little more because it creates a hole on a temporary then it cracks.. he got offended by my opinion even tho he asked me a question,a lot of patients been complaining about his work too.. if he didn’t want my opinion then he shouldn’t have ask me.. i don’t understand why he even get mad .. every time. Ive seen great work and I’ve seen horrible job from bad dentist.. and its really hard finding a dentist that loves what he do and care
Can I repost your video to my APP, I will indicate the author
Sure you can 👍
Good day Dr. Azhar, I have one question.. what margins do you prefer in tooth reduction? the shoulder in labial then chamfer in palatal or all chamfer or shoulder margin??
Kim Ganir deep chamfer " circumferential " finish line is the most recommended finish line for all ceramic crowns.
Azhar CBD thank you doctor :)
Azhar is the name of the university not the doctor btw
There is one thing , " Al Azhar " is a university not a person,,,,
Regarding your question we prefer and recommend the use of chamfer finish line with any type of the ceramic materials. Actually the shoulder type finish line is no longer been used in tooth preparation because the sharp internal line angle between the axial wall and the finish-line can concentrate stresses and transmit it from the tooth to the ceramic material in unfavorable pattern. these stresses may be catastrophic especially for the weaker ceramics.The chamfer finish-line can transfer the force vector smoothly from the tooth to the restoration without concentrating the force at one point, therefore its more safe and more tolerable by the ceramic materials.
Great work .. thanks :)
Which one is best crown or implant???
Regardless of any limitations, implants are better than fixed partial dentures
@@AzharFPD but they can still fail though
يعطيكون أالف عاافية
Thanks, great vid!
Thank you
Great job
Excellent job
Thank you
thanks for this and we need more
Dath ko kat Karne ke liye kithne payse lagte he muje btavo na message me
Thats too much reduction overall ... 2.5-3.0mm incisal and 1.0mm at the prap margin.
2mm reduction at the incisal and 1mm at the margin. This is the standard tooth preparation for most ceramic crowns except zirconia. You can make a little search about that.
Thanks a lot :)
Thank you
I have like crazy crooked teeth. I've considered crowning but I'm scared cuz I don't want to look fake with the crowns on. Well that's what I think. :/
If you are planning to do any dental work, we advise you to consult your dentist (more preferably a specialist). Talk to your dentist about your concerns and see what is good for both your health and looks.
like
Thank you
Thank u Wisam for ur nice words
1- The bur used for this prep are tapered diamond with flat end (1,2 mm) for axial preparation, fine tapered stone (0.8 mm" for proximal preparation, flame stone for fossa preparation and rubber cup for finishing the preparation.
2-The depth grooves are 1 mm at the finish line.
Thank u again, i hope my answer help u and u welcome any time.
I don't prefer this method if you don't have enough experience you could find a difficulty specially if you start with making groove on the labial side which increases chances to form unnecessary undercuts, also it's recommended for students to use matrix band in order to avoid any contact with the adjacent tooth, it's also good to know that using hand piece on a high speeds has a quite significant impact thus tooth preparation will definitely be done faster more even and undercuts will be minimized.
Good pointers, thank you for this rich sharing of your experience.
I would like to ask you which is the depth you have used for this preparation labially and lingually?
I wanted to see the finishing part..how did u finish it so well
Which burs r used for preparation, how to du finishing?
تسلم
شكرا
Hi could you please say where you purchased the typodont or do you know what it is made of? I want to practice tooth preparation at home but i don’t know from where and which dental model is good
Would you recommend torpedo but for incisor tooth chamfer prep.?Does it cause more structure loss?
Thank you sir u r greatest guidence teacher u help in vry easy way ✌️✌️ brilliant aswm demo vedio u made
Hi! Can you make a video on how to prep FPD for maxillary canine?
Sure. We will plan to do a video on this.
Not a dental student, but I definitely want to know what it's going to look like when I get this procedure done
GREAT but you should say "labial" instead of 'buccal' when talking about anterior teeth am I right?
Very helpful. Thanks for uploading! 😊
Thank you
thax so much my prof dr tamer
i cant understand what is better during prep of anterior and posteior in comperation between them?
i know during prep of molar tooth
fristly doing occluse aspect to decrease heat generation
i need details about that
I have root canal treatment and I have problem i didn't eat confidently any information or suggestions pls solve my problem
Thank you for the video. It help us a lot. Can you also do mandibuar central and canine preparation?
ممكن تقولولي نوع الstone دي ومقاسها لانها كويسه جدا بتاعتي بتطلع عيني
وممكن اسم الكاست ويا تري السنان بتثبت فيه ولا لا
We used tapered stone with flat end #12 ( approximately 0.8 mm tip diameter) , you can have any brand with the same criteria
The cast used here is common in Egypt ,it's known as ( Chinese cast)
Teeth are not fixed to the cast by screws but by friction only
nice video, but that is maxillary tooth thus there is no lingual surface it is palatal i think, n also for anteriors we do not use the term buccal, we use labial.
Yes you are right. We made this video in the beginning of our casting on the TH-cam and we didn't expect it to spread like that, so we didn't make a fine revision for the data in it. We are sorry for that but hope you understand now the situation.
I wish you were my dentist 😂
Hi sar detnal price back reply thnx u plz
I don't understand
yes u r right, sorry i missed that :) thank u
How did u finished the model aftr crown preparation ? @azharfpd
I am going to put crown for my front teeth but my tooth colors are lightly yellowish .If i put ceramic teeth would it be unique ?
I advise you to ask for white crowns because you will be stuck with that shade forever! (they don't stain and can't be bleached) to make them match whiten your natural remaining teeth too! Good luck =)
Please mention what burs were used. Thanks
Excellent work.
Please show the tooth preparation of mandibular canine.
برجاء كتابه depth في كل prep
Thank you for your great explanation
fiber bies
I can't believe all that tooth structure that was taken away! That's crazy!
Are you dentist?
yareet lw yba2 metal ceramic l u4 :D
Kamal Elhoseny th-cam.com/video/4eymVl8jfUc/w-d-xo.html
❤️
How do you finish it? fine grit burs or Soflex discs?
end cutting bur and rubber cub
mẫu này mua ở đâu nhỉ
does it hurts?
No because we give anesthesia before the work
OMG it’s moving upward and downward.
If you got the idea, it doesn't matter
How much sir
Thanks a lot for a video!
I am a student from Russia
And can u tell me please where i can purchase buy this models of jaw?
Thank you
Any bad smell will come ahh after ..pls reply
If it's done properly it should be good. No bad smells or any thing.
where is the video the other part
thanks Omar
thank u Amall
hi how do we finish shoulder with hand instruments like hatchet
what a nice work :)
U can answer here
the sound is not good I am quite disappointed
Sorry for the inconvenience.
all of this amazing videos thanx alot and plz we need more
Which bur did u use for palatal fossa prep
Football diamond stone
with which burs hv u done finishing?
good work and thanks for the video
thanks :)
excellent
Good job doctor's
a good and practical approach
zis is ze best
Is it painful ?
It shouldn't be pain, especially if it made under Anaethesia
Thank you sir
You are welcome
Great Job!
beautiful prep.
Thank you
thank you
Thanks
Cusp beveling?
What about it?
Hi... i recently had a root canal and the teeth was prepared for crown fitting. During the prep there was lot of blood from my gums around that teeth... is that normal?...also its been 2 days and i feel a mild pain the gums... i see little redness and swelling... is that ok?
Vidya Bk Maybe you should go back to the dentist and tell him/her your problem because ideally there shouldn't be much bleeding nor swelling after crown prep
Vanessa Li thanks for the reply... i did go back... they checked it out and said nothing to worry... they had to remove a little of my gums coz it was the last molar and i have crowding thats why there was so much blood... there hasn't been issues after that :)
einafch super !
How do you get a smooth transition between the lingual prep and the palatal fossa prep reductions? Do you use a hand instrument? Or a burr? Thank you Dr
wonderful, keep going up
شكرا استفدت 💖
شكرا جزيلا
awesome..
Thank you
The start itself was against the teaching of TYLMAN book of prosth incisal reduction is the first tehn proximal then labial what about incisal edge angle at 45degrees a very amateurish unprofessional display.
I do agree with you that in most text books they start with the incisal preparation, however, from a clinical point of view, you have specific criteria of tooth preparation that you keep in mind and are willing to fulfill. I'd like to hear from you what's wrong with the sequence we demonstrated in the video, as all the set out criteria of tooth preparation are being fulfilled? Did you hear about "Reverse preparation technique"? The sequence is widely modified, and can be changed accordingly.
The sequence of the preparation has many approaches, the crucial point is to stick to fulfilling the criteria, at the end.
Regarding the incisal bevel -preparing the incisal edge with a 45 degrees bevel towards the palate- I, agian, agree with you. But I don't know if you had watched the video to the end or not? Re-watch the video to the end, you can see the 45 degrees palatal bevel of the incisal edge in the finished preparation. It's also noticeable in the picture of the complete finished preparation displayed in the beginning of the video. It's not made clear as a separate step, yet it's very noticeable in the finished preparation.
Azhar CBD well replied
As a professional there is no need to be so rude. There are more polite ways of addressing the concern you have
very well
can u pls demonstrate veneer prep as well.
first thank you
just a noot in the up jaw we cann't say lingual