All about ZIRCONIA CROWNS - (Types/Phase transformation/Transformation Toughening/Prep Guidelines)
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- Опубликовано: 2 июн 2024
- Watch this video to know what makes Zirconia Crowns a popular option these days?
In the last few years, there has been a rapid development in the use of zirconia or metal free crowns in dentistry. Zirconia crowns are considered to be the best option these days. But what makes these zirconia crowns so popular?
This video is all about Zirconia restorations. Everything mentioned here is based on evidence and research.
This topic will be covered in 2 parts.
The 1st part is covers the following
1) Is zirconia a metal
2) Zirconia crown advantages
3) Zirconia crown disadvantages and limitations
4) The different types of zirconia crowns - high strength zirconia, translucent zirconia, high translucent zirconia / cubic zirconia (HT Zirconia)
5) The material properties of zirconia - Different phases and transformation toughening
6) Preparation guidelines for zirconia crowns.
The 2nd part focuses on the cementation and bonding protocol of zirconia.
Following topics are covered in the 2nd part of the video :
1) Cementation vs Bonding of Zirconia Crowns
2) Factors to consider before bonding zirconia crowns
3) Affinity of Zirconia to Phosphate Ions - Zirconia crown contamination
4) Protocol for Zirconia Crown Cementation
5) Protocol for Zirconia Crown Bonding
6) Commercial names of products used for bonding Zirconia Crowns
6) Zirconia crown adjustments
Link to the Part 2 - • Zirconia Crowns - CEME...
To know more about different types of crowns used in dentistry :
• DENTAL CROWN TYPES. Zi...
To know more about Burs used in tooth preparation
• All you need to know a...
Credits
Soundtrack - bensound.com
Presentation template - slidescarnival.com
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I absolutely LOVE your videos. Thank you so much for the information.
Thank you so much for this information!
U are really talented to educate..Masha Allah...thanku Dr
Thank you very much.
Excellent lecture
Excellent video , understood every bit of it 👍
Glad it helped!
Hello doctor, Can you please give me advise? A few days ago my upper molar was pulled out and near to this tooth I have a tooth with a zirconium crown. When I looked in mirror I found out that front part of this crown on side of my lips which used to be smooth now only has 1/3 of tooth smooth and seems like 2 millimeters thickness of my crown seems to be gone now. So I don't know what to do; is it possible to polish this crown to make smooth again? Or do I have to remove this crown? My tooth under this crown had a root canal and I hear that removing this crown is very difficult and can sometimes damage the tooth; is this correct?
Thank you 🙏🏻
Ur really super and explain in ur video which is required and which we are confused to come to conclusion about choosing the crown.I thank you so much
Thank you so much 🙂
Best explanation ever👍
Glad you liked it :)
HI, how about the abrasive potential of 3 yPSZ, 4yPSZ and 5yPSZ, which one of them can be used in a bruxism patient?
Hi doc! How can I provide zirconia crown to 15 and 46 at the same time ?how can I do the occlusal adjustment for the same ?
Thank you maam
Can you also please make video zirconia vs gold crown??
Hi Doc, great video. I've got a problem , can you help me please?. I had 2 gold crowns installed on premolars right side upper jaw 5 wks ago. The gold crowns are 70% gold, rest are various noble metals including 8% copper in the alloy mix. In 2016, I had 3 gold crowns installed left upper jaw. A premolar, & 2 molars. I'm now tasting a copper metalic taste in my mouth. I never had this problem till the recent gold crown installation. I have no amalgam fillings. Both left & right side lower jaw ,I have PFM on my molars. I am in good health, I don't take any type of medication or recreational drugs. My dentist advised it a galvanic reaction between dissimilar metals in my mouth causing the metallic taste. My dentist has recommended removing 2 new gold crown & replacing them with monolithic zirconia crowns. What do you recommend? I look forward to your reply. Regards James in Queensland, Australia.
Yes, it is probably because of the galvanic reaction happening due to the dissimilar metals. Go with your dentists advise, I would suggest the same...replace the 2 gold crowns recently placed with monolithic zirconia.
That should hopefully resolve the issue. :)
Different between self glaze and over glaze please?
Can we use regular feldspathic porcelain for glazing or layering of a zirconia crown/coping? Do they bond well ?
Currently I am undergoing with RCT for one teeth(6th one) each on both side(lower) . What would you recommend me regarding crown? Should I go for PFM or Zirconia? Looking forward to your reply doctor.
Hello Sanjukta! Both PFM and Zirconia are ok...I would prefer a zirconia crown.
There are some factors to consider when deciding between them, Zirconia is more conservative compared to PFM ( The tooth has to be reduced almost 2-2.5mm for PFM but for Zirconia around 1-1.5mm) , also in case of PFM, the porcelain can chip off over time exposing the metal. When it comes to esthetics, both options give you comparable results...However, PFM is much cheaper than zirconia...so, the ultimate decision is yours...
You can watch this video I had posted earlier to know more about the advantages and disadvantages - ruclips.net/video/BXUFi-Chk4o/видео.html
Hi doc. May i ask for your opinion, which is best for the front teeth, zirconia or emax? Thank you
Depends on the case
Thanks ❤ from SOFIA BULGARIA 😊😊❤
VERY INFORMATIVE VIDEO.
PFZ AND LAYERED ZIRCONIA ARE SAME OR DIFFERENT?
Yes...same
hi doctor , a 60 years old male patient had attended my clinic seeking for zirconia bridge to replace his missing lower anterior teeth , he is suffering from diabetic and has a gum resicion of the abutment teeth , the the edentulous span is 4 teeth , can i go for preperation of zirconia bridge ? and what is your opinion about the issue? finally i appreciate your kindness .
We can give zirconia for long span like canine to canine
Is Cobalt cromium and monolith same?
you have agift .....please continu
You mean as 'layered zirconia _I guess PFZ_' is not 'graditional multilayered' zirconia (KATANA) which is full zirconia and prepared by Cadcam,, is it true?
yup...layered as in PFZ...not the gradational ones
Greetings Dear Doctor,
I am a fellow Doctor (Physician). I was wondering if I could ask you some questions about Zirconia crowns based on your clinical experience. I would highly appreciate it if you could give your point of view on the following:
1.In your clinical opinion are Zirconia crowns for molar tooth a good option?
2. What common drawbacks and disadvantages have you faced clinically among patients with Zirconia molar crowns?
3. Did you clinically see any patients with root fracture of the underlying tooth crowned with a zirconia crown or the wearing of opposing teeth occlusal surfaces?
4. What are other options for molar crowns in molar tooth with rct done with minor crack/fracture in crown area of the tooth?
Thank you in advance for your valuable opinion.
Hello Dr. Fatema,
Here are my answers to your questions
1) Yes, Zirconia crowns are great for molars...I personally also prefer monolithic zirconia crowns for molars.
2) One thing I sometimes don't like is the esthetics between the monolithic high strength zirconia crowns (3Y TZP) and the natural adjacent teeth, especially when they are more translucent. It is because these zirconia crowns are opaque.
But, since they in the posterior region, its generally not much of a concern to the patients...I usually inform them about this before I prepare the tooth.
Second thing is the connector dimensions for bridge, not faced any fractures personally, but for 1-2 cases initially, the technicians have sent my cast back saying the bridge would fracture due to inadequate connector height...ever since I have been careful of that.
3) No, in my limited years of practice, I have not seen any root fractures under zirconia crown...I usually give a polished zirconia crown to my patients as per the protocol...never really had any long term follow ups to comment on the wear of opposing teeth.
4) I think it depends on the extent of fracture, if you have sufficient enamel, you can even give an zirconia or LiDiSi onlay or a crownlay...Otherwise you can really give any other crown....metal, PFM, layered zirconia, LiDiSi depending on the case.
@@Dentrickstry Dear Doctor,
Again.... Thank you very much for your valuable opinions....It really helped me.
Regards.
Regarding your answer to Question 4....To clarify a bit more.... The minor crack is on the left 1st maxillary molar (occurred after accidental bite on a fragment of hard bone) ... crown area is only involved along the lingual groove and crack is near to the pulp cavity on X-ray so RCT was done (also clinically there were signs of irreversible pulpitis)....otherwise the tooth structure is intact.
Based on the above information in your clinical opinion what are some of the best Conservative restoration options for the tooth that are long lasting solutions?
Thanks in advance.
@@fatemamohammadalam965 Glad I could be of help :)
@@fatemamohammadalam965I believe either a metal or zirconia crown would be good....zirconia if you are giving and there is enough enamel present, you could consider bonding it...I think that would be preferable
can i get the citation pleaase
Hello mam i would like to know tha last month i met with an accident and my front three teeth were fractured and roor were damage i went for checkup and dentist advice me for root canal and capping but i bit confused about cap which type of cap i used which look natural and long lasting pls reply mam i need ur help
Hello Priyanka....Translucent Zirconia or Emax (Lithium Disilicate) crowns will be good and natural looking for your front teeth....
With regards to the longevity of the crown, it depends on a lot of factors like the tooth condition, the operators skills and techniques and your oral hygiene measures.
Thnku mam for your suggestion
Please tell, what's better to give joined crown or separate crowns ?
always separate....
Separate always for flossing and avoiding gum diseases.
@@Dentrickstry What about adjacent restorations over implants? Joined or separated? Your feedback is greatly appreciated.
What's the difference between all ceramic and zirconia crowns ?
Zirconia can last lifetime
@@yaniegraves4275 that's not a difference
Hello, ceremage crown are also zirconia? thanks
Ceramage crowns a different from zirconia...they are zirconium silicate...good esthetics but the strength is not as good as regular zirconia
thank you, but can be allow for biting because they put ceramage crown 1 tooth only on my biting area or posterior area.
Hindi me video banao.. sab sir k upar se ja rha
Can someone please translate this into English?🤷♀️