All ceramic crown "tooth preparation" - for dental students

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.edu.eg/

[@AzharFPD]

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.

[@SawTooth1953]

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'.

[@AzharFPD]

We will consider this in our upcoming work. Thanks for the constructive review. :)

[@entrepreneur2152]

U look like jhonny sins dude

[@idiopathic5774]

@@entrepreneur2152 lmao🤣🤣🤣

[@WisamAlRawi]

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.

[@gabypacenia]

I would like to ask you which is the depth you have used for this preparation labially and lingually?

[@sarahkhater9614]

all of this amazing videos thanx alot and plz we need more

[@amarnarayanan5469]

I wanted to see the finishing part..how did u finish it so well

[@mohsinshafiq726]

Would you recommend torpedo but for incisor tooth chamfer prep.?Does it cause more structure loss?

[@abramovicsta8434]

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.

[@AzharFPD]

Good pointers, thank you for this rich sharing of your experience.

[@rtyankeedoodle]

please show us the finishing also.

[@MrVc92]

Would you not increase the taper slightly as the proximal walls are too parallel? Also would you also round off the incisal line angles?

[@dellyroseoledan990]

Thank you for the video. It help us a lot. Can you also do mandibuar central and canine preparation?

[@sakshichoudhary3315]

Very helpful. Thanks for uploading! 😊

[@AzharFPD]

Thank you

[@mechaela97]

Not a dental student, but I definitely want to know what it's going to look like when I get this procedure done

[@saeedakl]

Amazing working dr's

[@AzharFPD]

sure you are welcome

[@ikay1966]

a good and practical approach

[@sarkarruby86]

Excellent work. Please show the tooth preparation of mandibular canine.

[@aisadordari2007]

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

[@se_betv8802]

Thank you for your effort very helpful video

[@AzharFPD]

yes u r right, sorry i missed that :) thank u

[@drmalek2000]

what a nice work :)

[@DentistSR7]

Great work .. thanks :)

[@mohamedyossef303]

good work and thanks for the video

[@user-fq6og2py7m]

Thank you for your great explanation

[@jkadds1]

Great Job!

[@saramohammed8323]

wonderful, keep going up

[@shahzadbhutta8004]

Please complete video by finishing the preparation and also leave in description box details of Burs used thanks

[@AzharFPD]

thanks Omar

[@MyFavourites]

Which burs r used for preparation, how to du finishing?

[@pierrzmalaka]

How do you finish it? fine grit burs or Soflex discs?

[@AzharFPD]

thank u Amall

[@vardivasingh7374]

hi how do we finish shoulder with hand instruments like hatchet

[@user-ig7qt7hi3v]

Great job

[@D3TR01TCH4NN3L]

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

[@hemaeldoc3672]

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

[@fishribbon]

Thanks, great vid!

[@AzharFPD]

Thank you

[@Nemo-jr5ie]

شكرا استفدت 💖

[@AzharFPD]

شكرا جزيلا

[@mohammedwafi6143]

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

[@AzharFPD]

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.

[@DENTISTSINTHEMAKING]

Hi! Can you make a video on how to prep FPD for maxillary canine?

[@AzharFPD]

Sure. We will plan to do a video on this.

[@priyankadhall8438]

How did u finished the model aftr crown preparation ? @azharfpd

[@takishabaker7520]

I can't believe all that tooth structure that was taken away! That's crazy!

[@AzharFPD]

Are you dentist?

[@elsayedali4033]

Good job doctor's

[@tarifhamsho2632]

يعطيكون أالف عاافية

[@AzharFPD]

thanks :)

[@Cat-tea123]

with which burs hv u done finishing?

[@deepthim9379]

Please mention what burs were used. Thanks

[@ibrahimhamada6087]

تسلم

[@AzharFPD]

شكرا

[@ittrathaider7312]

Please mention the details / measurements with the video too.

[@KiLLtRoCiTy01]

beautiful prep.

[@AzharFPD]

Thank you

[@geetika14saini]

excellent

[@wakilajeerander1157]

thanks for this and we need more

[@nageshgandikota680]

I have root canal treatment and I have problem i didn't eat confidently any information or suggestions pls solve my problem

[@sophiyasayyad5539]

Excellent job

[@AzharFPD]

Thank you

[@PsychoJowJow]

GREAT but you should say "labial" instead of 'buccal' when talking about anterior teeth am I right?

[@gohilvishal912]

Thanks a lot :)

[@AzharFPD]

Thank you

[@drannemathews1]

awesome..

[@AzharFPD]

Thank you

[@adityadayma]

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.

[@AzharFPD]

Yes you are right. We made this video in the beginning of our casting on the KZbin 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.

[@yigitalpyavuz348]

where is the video the other part

[@zaradana80]

Not bad if U wrote on video about kind و burs, which U used. Thx for video🙏

[@drmohamedsamerashraf2204]

ممكن تقولولي نوع الstone دي ومقاسها لانها كويسه جدا بتاعتي بتطلع عيني وممكن اسم الكاست ويا تري السنان بتثبت فيه ولا لا

[@AzharFPD]

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

[@ponrenjith]

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 ?

[@shanaynayokeil6553]

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 =)

[@izzahathirahx]

zis is ze best

[@eleniqummilad8352]

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?

[@AzharFPD]

Thank you

[@nishupal1600]

Thank you sir

[@AzharFPD]

You are welcome

[@Amall51089]

einafch super !

[@hoanghai1604]

mẫu này mua ở đâu nhỉ

[@clintazz]

How long do you think it takes to prepare a tooth for a crown ?

[@AzharFPD]

5-7 minutes

[@AzharFPD]

end cutting bur and rubber cub

[@drmerna7349]

برجاء كتابه depth في كل prep

[@kimganir3602]

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??

[@AzharFPD]

Kim Ganir deep chamfer " circumferential " finish line is the most recommended finish line for all ceramic crowns.

[@kimganir3602]

Azhar CBD thank you doctor :)

[@saadbouyahyaoui]

Azhar is the name of the university not the doctor btw

[@AzharFPD]

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.

[@vidyabk1083]

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?

[@wennessa94]

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

[@vidyabk1083]

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 :)

[@soatnguyen3681]

thank you

[@AzharFPD]

Thanks

[@jowanajo4237]

❤️

[@prernayadav4765]

Which bur did u use for palatal fossa prep

[@AzharFPD]

Football diamond stone

[@wisdome4962]

Can I repost your video to my APP, I will indicate the author

[@AzharFPD]

Sure you can 👍

[@vardivasingh7374]

can u pls demonstrate veneer prep as well.

[@theajaynecapili1339]

does it hurts?

[@AzharFPD]

No because we give anesthesia before the work

[@aamnawaseer881]

Which one is best crown or implant???

[@AzharFPD]

Regardless of any limitations, implants are better than fixed partial dentures

[@melgrant7404]

@@AzharFPD but they can still fail though

[@bjsushma2865]

Any bad smell will come ahh after ..pls reply

[@AzharFPD]

If it's done properly it should be good. No bad smells or any thing.

[@milovela]

I wish you were my dentist 😂

[@odishapppp781]

How much sir

[@wakilajeerander1157]

very well

[@LoneOldMonk]

Cusp beveling?

[@AzharFPD]

What about it?

[@neoma7266]

Is it painful ?

[@AzharFPD]

It shouldn't be pain, especially if it made under Anaethesia

[@drmerna7349]

U can answer here

[@milovela]

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

[@hidenorican6379]

OMG it’s moving upward and downward.

[@AzharFPD]

If you got the idea, it doesn't matter

[@navairamasood]

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. :/

[@AzharFPD]

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.

[@kamalelhoseny2545]

yareet lw yba2 metal ceramic l u4 :D

[@AzharFPD]

Kamal Elhoseny kzbin.info/www/bejne/apbcnomibc-Zi8U

[@marioyonov4246]

Thats too much reduction overall ... 2.5-3.0mm incisal and 1.0mm at the prap margin.

[@AzharFPD]

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.

[@anitapawara245]

Dath ko kat Karne ke liye kithne payse lagte he muje btavo na message me

[@hossenali2384]

fiber bies

[@datphatjsc2023]

like

[@AzharFPD]

Thank you

[@satnamptwari4725]

Hi sar detnal price back reply thnx u plz

[@AzharFPD]

I don't understand

[@NAMNguyen-rl8mn]

the sound is not good I am quite disappointed

[@AzharFPD]

Sorry for the inconvenience.

[@Dr.M.dental_cosmetic_implant]

first thank you just a noot in the up jaw we cann't say lingual

[@ZAHIDAHMED1967]

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.

[@AzharFPD]

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.

[@ikay1966]

Azhar CBD well replied

[@aali1134]

As a professional there is no need to be so rude. There are more polite ways of addressing the concern you have