Zinc Phosphate Cement | Dental Cements | Super Simplified
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- čas přidán 24. 08. 2024
- This video of Zinc phosphate cement, a Dental Cement topic from Dental Materials is from Aspire32 and made by Dr Suresh Shenvi. Zinc Phosphate cement is one of the oldest cement from all the dental luting cement and is commonly used for luting permanent metal restorations and as a base even today. It is a high-strength cement base, mixed from zinc oxide powder and phosphoric acid liquid. Since it’s a standard cement to compare, with many dental entrance exams do ask questions from this topic of Dental Materials. This video covers Zinc Phosphate Introduction, Properties, Applications, Advantages, Disadvantages. Easy dentistry at Aspire32 helps grasp such topics of Dentistry in the simplest possible way for dental students and dentists. This zinc phosphate cement also explains the uses of zinc phosphate cement.
This video of Aspire 32 is made by Dr. Suresh Shenvi who has cleared various exams like ADAT, NBDE from the USA, DHA from Dubai, and various Indian Entrance exams like PGI, KCET, NEET. I am MDS in Conservative Dentistry and Endodontics by profession. I am also an author of dental books on the entrance exam and I am also currently a faculty at KLE University and a receiver or best teacher award.
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Thank you so much for the appreciation :):)
Sir, for the Q ; the best cement that can be used it GIC ( fluoride release, elastic modulus close to dentin & the pH is not acidic). However zinc polycarboxylate can also be used. ( lager molecular wt. & the pH increases in 24h)
Great answer..but you should first think about the type of restoration :)
When the thickness of dentine is more than 1.5 mm ,, it’s okay to use zinc phosphate bcx it will not elicit any pulp sensitivity . On the other hand it’s a good insulator as compared to GIC and zinc polycarboxylate cements
Thank you so much sir ,this is a very helpful video it's much easy to understand especially the importance of alumina in zinc phosphate
I agree.. as a student even I thought its only phosphoric acid which matters a lot. Hope you will share this video with others :)
Sir for the quiz question - although zinc Polcarboxylate cement can be used at RDT 1.5mm, GIC would be the best option due to its - chemical bonding, high fluoride release, anticariogenic property, elastic modulus very similar to that of dentin, its pH is much more suitable than that of zinc phosphate and slightly better than zinc Polcarboxylate so no worries of any irritation to the pulp
Great answer..but you should first think about the type of restoration before deciding base:)
👌
What ABOUT thermal insulation of Zinc phosphate 🤔
Sir explain comprssive and tensile strength.
Great to hear from you sir.... Thanks
most welcome
Thank you sir...it is very helpful for me...
Most welcome. Hope you will check the whole cement series to understand it better. Here is the link czcams.com/play/PLdPsg6P-6VldTjajPjbmZWE9mK3hQRlfQ.html
Sir please make a video over topic :
Factors affecting setting and mixing time of zinc phosphate cement
Nice sir... neatly explained....
Than you Dr Ajay : ) Thank you soo much for the continues support :)
Zinc phosphate for amalgalm bc it has better insulating property and GIC for composite
Thank you Sir!! Liked it as always:)
Thank you too.. For being a regular viewer of my Channel :)
Very informative video. Thank you.
So nice of you :)
Sir should we remember the percentages of the composition of powder and liquid as well as the properties for exam
In theory exam the teacher do expect this information. In entrance exam they dont ask about the percentage unless there is a very important point associated with it.
For exam the gutta percha has maximum zinc oxide in ints composition even though the name days gutta percha
Thank you so much sir
Most welcome :)
Is it possible to increase free acid value of zinc phosphate without increasing the total acid value?
Thank you for your video sir .
And for your question- we will use gic if 1.5 mm dentine depth is remaining .. because gic is not a pulp irritant . As compare to zinc phosphate it’s ph is low which cause pulp irritation .
Great. But the anser can be both polycarboxylate and gic because if you just consider pg then polycarboxylate is better. But GIC has other. Benefits like chemical bonding. Hence gic is preferred. The best luting cement js Resin cement :)
Sir I have pulp exposed in molar lower jaw, but Dr put me zn phosphate filling , is it better, and can I do other fillings in future 8b this area
Gic is used...in such cases..as it has better bonding ..
Yes. Its also less acidic
Sir I know this is not a video of calcium hydroxide but I have question about it, that is how much ether required for dissolution of calcium hydroxide?
I did not get you. May I know why this question is important?
very helpful lectures sir, i wish i could learn like this during my ug class
Thanks for that beautiful comment :) you can watch many topics of dental Materials and learn it Simplified way . Here is the link czcams.com/play/PLdPsg6P-6VldkI_N1LglBPGc114Ksq9Ir.html
Sir ...which is the best luting agent among Zn phoshate, Zn polycarboxylate and GIC???
Resin cement which is not mentioned in your question. Thats the best for Luting
@@Aspire32 Thank you
@@Aspire32 sir would u plz make a video on resin cements as to why they are better than the others.... Is it bcz they are insoluble? But wouldn't resin cements have polymerization shrinkage giving rise to microleakage?
@@kf-ot6vw Yes. It does shrink but since the amount of material is very less, the shrinkage is clinically insignificant
Plz 🙏 sir kindly share a PDF notes of it if you have it we will be very thankful dear sir 💕
I don't make the pdf. Sorry
Sir may I know that whether there is any lecture on biocompatibility of dental materials chapter
Not made that yet. But do visit the playlist section to find all the other topics :)
Thank you sir .
Most welcome :) Do take part in the quiz question :)
Sir, to make an attempt to the quiz.. i feel GIC can be used as a base for 1.5mm of RDT as its ph is not as bad as other cements, also its similar elastic modulus like dentin, releases more of fluoride.
Zinc Polycarboxylate ...as pulpal response is less ....after 24hr ph is 5-6 , ...polyacrylic acid has less penetration into the dentinal tubules... Not as good as gic but it has also got fluoride release . .... chemical bonding .
Good reasoning.. but you should first decide it based on the type of restoration.
Sir kindly add practice questions 🙏
We will
Sir can we write zincoxide +phosphoric acid ->zinc aluminophosphate for setting reaction in theory exam
Its better to write it as mention in the video since composition section has more marks
GIC bcoz of its strength and flouride releasing property
Great
Sir what book do you recommend to study dental materials..if it is Anusavice ...which version of it... Please
Any book, any source is fine :)
@@Aspire32ok sir
Sir what causes ph change from 2.2 to 5?
The acid base reaction of powder and liquid
Which component is responsible for the change in ph
plz also explain the convergence angle?
Yes.. I shall make it in few days. Its a small one :)
Thank u soo much
Here is your video
czcams.com/video/lR0LUpRCPvU/video.html
Thank u soo much sir..
U spare some time for me nd made a whole vedio...
I m soo greatful to you.. ❤
Could u pls explain the significance of type 1 and type 2 zn phosphate cement😊 again
You mean a new video or in comment section ?
@@Aspire32 comment is fine sir.
sir plz speech in urdu plz sir
Thank you so much sir
Most welcome. Do check the whole cement series