yes the order of the delivering a crown here... slightly differs from Mosbys. 1. internal surface fit. 2. adjust proximal contacts. 3. margins. 4. stability of FDP. 5. axial contours, 6. occlusion (centric and eccentric contacts). which sequence should I go with? Also, I came across a question in the app (which one is first? A: proximal contacts) Also, thank you so much for these great videos.
Proximal contacts is always first! You can check internal fit on the cast first, but you won’t be able to check fit in the mouth accurately until after proximal contacts are correct.
Hello! I wanted to just clarify the order once and for all. Many are still confused of what to put for the boards when asked and would love your opinion. Would greatly appreciate your help, thanks! 1. Proximal contact 2. Internal fit 3. Margins. 4. Shade. 5. R&R 6. Occlusal 7. Contour and 8. Cement
Hi doctor , thank you very much for your effort , I just wonder about the steps for checking the crown , what about checking the internal surface of the crown first ?
Hi there! Yes, I have noticed board prep resources that suggest to check internal fit as the first step. So you may want to remember internal fit > contact > margin in that order. In my opinion though, if the proximal contact is open and/or if the margin is open, those are easy steps to check that would mean you have to remake the crown. This is one of those areas of conflict and the answer is not clear unfortunately!
Well that’s interesting! I frankly completely disagree with that. The whole setup of the VITA 3D Shade Guide for instance is to break each component of the color system into steps, and you select in the order Value > Chroma > Hue. Feel free to go with what the dental decks are saying although I would remember the above way for the exam personally. Thanks for bringing it to my attention!
@@mentaldental Dr. Ryon.. can you please answer this question then? How can we determine the value of a color without having it? I mean if dont know what color(hue) we are having how can we know we should pick the dark or light one of it? However I agree with that part of your explanation that the first thing that comes to our attention is the value of the tooth that we are looking at... but in shade selecting I think we have to go backward.. first know what the hue is.. then choose chroma and then value. Can you please provide your explanation here? TIA
It actually depends on what type of shade guide you are using. If you are using the classical shade guide then its HCV If you are using the vita 3D shade guide then its VCH
Hey Ryan, Thank you for making Prostho easy for me:) I have one doubt though, in your video you say that value is selected 1st when choosing a shade, but in decks, it's mentioned hue is selected 1st when picking a shade. can you please tell me which is the correct answer? thanks
@@mentaldental What if value would be an option? Because in the video you said if any color stain is added then it makes the color more dark and that is the characteristic of Value. So if it doesnt specify that it is being added from a new color family and Value is given in the option, we go with Value right?
Hi Dr. Ryan. Question regarding adding a complimentary shade when doing a restoration (for example you picked A3.5, it is too dark and you want to add some A1). To me, you would make the restoration lighter therefore increasing the value and decreasing the chroma. Can you please confirm? Thank you
Dr. Ryon I also have a question regarding crown delivery? I get the point when you say first we check esthetic... do you mean we check the lab slip or we try it intra oral... because if we already try it in then it wouldnt be the first step. And if we check the lab slip even if its confirmed that the order was made correctly we still have to try it in... its a very confusing issue.. I remember from when i went to school that the first thing to check is proximal contacts... then we go with the rest including shade checking which can be right after we check the proximal contacts... i dont know if i make sense at all.. can you please explain this too? Thanks.
