Prosthodontics | Support, Stability, & Retention | INBDE, ADAT
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- čas přidán 5. 07. 2024
- This may be the most high-yield video of the series for your board exam preparation! These topics are central to removable prosthodontics and will really help tie everything together that we talked about up to this point. Thanks for watching!
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I dont know how to thank you for these wonderful videos, thank you dr Ryan!🤗
Just love the amazing way you explain everything in such a simple and easy way to understand 🥰🥰
Thank you so much! 😀
Thank you! You’re videos are so helpful
Just like all your videos, Excellent!
You are awesome 👌 all videos are very helpful
Thanks alot, so helpful
That is great expression, thanks a lot for that king of videos ! I am very sory because ı find this channel so late :) Thanks again ...
Hi there ,I think you have mistake in the minute 10;24 when you said that under extension flange will affect on the retention ! I think when the flange under extended will affect on stability because the main source for stability in the denture is the denture flange that extend to the vestibule.
thank you.!
thank you for yr kind sharing. Adorable.
just can not thank you enough dr.Ryan, it was again awesome. will you cover impressions, casts and the complications with them, for example the reasons why a cast frame not fit in mouth but fit on models, those tricky topics which are really confusing.
Yes, we will be talking about impression materials when we get to fixed prosthodontics! Can you explain what you mean when you say casts not fitting in the mouth?
@@mentaldental
Thanks Dr.
for explaining my point I would like to share some released questions regarding this topic, this would make it easier for you to get what i meant:
1) A removable partial denture cast metal framework is fabricated from a master cast from a polyvinyl siloxane impression in an acrylic custom tray. The framework fits the master cast without abrasion but will not seat intraorally. The error in fit could have been caused by
A. removing the impression prior to final polymerization.
B. insufficient relief on the master cast prior to framework
C. fabrication.insufficient blockout on the master cast prior to framework fabrication.
D. an improper melting temperature for the framework alloy
2) Which of the following factors could cause a partial denture framework to fit tighter in the mouth than on the cast?
A. Too much water in the mix of the stone for the cast.
B. Not enough water in the mix of the stone for the cast.
C. Duplication impression slightly oversized.
D. Improper wax up of the partial denture.
3) A dental laboratory has fabricated a removable partial denture framework. The framework fits the master cast well but when tried in the mouth a stable fit cannot be achieved. The most likely cause is
A. improper major connector design.
B. distortion in the final impression.
C. shrinkage of the alloy during casting.
D. improper casting temperature
4) When a partial denture framework fits the master cast but does not fit properly in the mouth the error is likely to be in the
A. Impression making
B. Casting of the framework
C. Design of framework
D. Preparation of the teeth
5) An all ceramic crown that fits on master cast, but not fits in mouth. There is an open margin and supra occlusion most likely cause is
A. removal of impression before setting
B. void on occlusal surface of crown
>>> I hope you might incorporate these points while covering the impressions, RPDs and fixed prosthodontics.
many thanks in advance!
Hi Sanjar,
Thanks for sending these questions to give me a better idea of what you were looking for. As an aside, I spoke with my colleagues and none of us saw questions like this on the Part 2 board exam so these must be from a different resource.
All of these questions are essentially asking the same thing--why is a framework fitting on the cast (or model), but not in the patient's mouth? We will mention this in a future video, but I didn't want to leave you waiting too long to get an explanation. The framework for a partial denture is the metal component that locks onto the teeth and it supports pink acrylic and denture teeth. The framework is fabricated directly on the master cast. So if the framework is fitting on the cast, but not the patient, then that means there is a DISCREPANCY between the cast and the patient's teeth. The only way for that to be true is an error in the IMPRESSION. Therefore all of the answer choices that mention impression-making are the correct choices in my mind. Hopefully this helps in your understanding.
@@mentaldental Hello Ryan, You are right, these questions do not belong to American board, and I thank you from the depth of my heart for providing the rationale behind these questions, appreciated!
Hi, I love your videos, I can't tell you how much your videos have helped me to study, I was wondering do you have a video about techniques of impressions? Thanks!
I'm glad they are helpful to you! I have a video on Impressions a bit later in this series.
cheers mate
i think of adhesion like resin composite bonding to the hydrophobic/hydrophillic molecules of the bonding agent. they're different. and this knowledge can be transferred to "adhesive failures"
i think of cohesion like covalent bonds - sharing the same atoms between 2 things and this knowledge can be transferred to "cohesive failures" like complete shearing of dental materials
Thank you so much
But what about RPD what affords and provides all these
Dr Ryan. In class 1 and 2 where there is distal extension, is the support mainly from the ridge? And in class 3 and 4 is through abutments meaning from rests? Waiting for yr answer please
i was wondering are you gonna do a separate videos for Fixed prosth ?
Yes, I will!
Dr Ryan thank you so much💕💕
How many questions are on impression materials in the exam?
At most 2 or 3. It was not many if I remember correctly! We will be talking about impression materials when we get to fixed prosthodontics.
Mental Dental you are the absolute best god bless you wish you all the success in life Dr
Best dental review channel i have seen so far. Thank you dr ryan.
Watched
How to check retention, stability and support clinically in a complete upper lower denture patient??
Retention, stability, and support are checked by verifying the fit of the prosthesis in the patient's mouth using indicator paste/spray and confirming its seal to the oral tissues.
What is the Primary stress bearing area of maxilla? the palate or the alveolar ridges?
Both the hard palate and alveolar ridges are considered the primary stress-bearing areas of the maxilla.
at 9:46 said short denture flange will lose the denture retention. Is the flanges for stability or retention?
Technically, proper flange design helps both retention and stability!
Gem❤️✌️
🥺🥺👌👌👌
A better definition for stability here is resistance to mediolateral and anteroposterior forces.
I agree, I think that’s a great definition! I just like to keep concepts as simple as possible in my videos.
Mental Dental you’re awesome and your videos are well constructed. Thanks
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