Can't thank you evough for these tutorials!!! May I ask that you please also show how you fill these with composite, really need to improve my layering technique
Wonderful video , I still hav not understood why my tutors at the uni want us to do make buccal and lingual walls at 90 degree angle , not flared , for minimal prep composites ,,,
Dr. Stevenson by any chance have you put together a video on all the areas you can use your RGS 1/2 and 3/4 instruments. I think that would be quite helpful to see. Also do you find that you can check the clearance on the lingual cusps as easily as the buccal cusps with these instruments, or is their a certain way to check the lingual clearance? Thank you.
Thank you Dr. Stevenson. A question if you won't mind. I were taught not to extend the retention grooves to the occlusal surface b/c it will increase the likelihood risk of amalgam/ composite fractures in those specific spots. I don't know if there are articles about that. From your experience do you recommend to extend the grooves to the occlusal surface? Lastly, thank you so much for all the effort and time you put on those videos
I don't know of any articles, just clinical experience - these amalgam slots required tremendous retention. The US exam called the WREB, which licenses dentists in over 30 states requires these grooves to extend to the occlusal surface as well.
Dear Dr. Stevenson, How should I proceed to make a MO or DO preparation for amalgam on #20 or #29 if the only burs provided are 330, 56 and 169 L. I'm struggling to do undermine and chip with 169L so my buccal clearance is coming out insufficient. Also, the axial depth is becoming less. Which bur should I use to make the box and finish the occlusal outline? I can use 1 mm enamel hatchet and GMTs. Thank you. Best, Adi
Use the tip of the 169L at the occlusal aspect of the wall you wish to extend, then work the bur gingivally. This will create a very nicely undermined bird beak which may be chipped with a sharp hatchet. We refer to this as the top-down approach. Best wishes, Dr. S
Hi Dr. Stevenson, cdca is now offering non-patient restorative exam as an alternative to patient portion due to covid-19 pandemic. Teeth used are carious compeDont #30 mesial for class 2 and #8 mesial for class 3. Could you please post a video for the tutorial for the same. That will be a great help. Thank you!
Flaring inter proximal walls for composite is acceptable and often a goal. The difficulty comes with the restoration - namely the composite must now flow into a tight space between the flare and the matrix band. The injection molding technique of Dr. David Clark works best for these scenarios.
Just picking up on a point you made, in what instances would a diamond bur be indicated over tungsten carbide and vice versa (I was taught using a diamond flat fisher bur for class II preps)? Or is it just operator preference?
Good question - I fin that the flat ended diamond work best with hard substrates - dense dentin and enamel, for example. However, with the myriad of choices with handpieces and torque values, many options exist...so, yes, operator preference. On exception would be gold inlays - carbides produce smooth and more define outlines, compared to diamonds.
@@StevensonDentalSolutions that is really interesting! In that case could you even use them in conjunction e.g. flat diamond for gross removal and say a 330 RGS carbide for refinement?
@@StevensonDentalSolutions sir in fundamentals of cavity preparation we have studied about secondary retention features which include locks, grooves, coves, skirts, steps, slots, pins unable to understand these☹️
@@StevensonDentalSolutions I’ve been going to my dentist for years, but I wish I would of known I had to get grooves carved in my teeth before getting partials.
Thanks for the video, Doc. The quality is amazing.
Thank you. :)
Much needed tutorial. Thank you Doctor!!
You got it!
We are love you doctor Stevenson 😍😍😍
Thank you!
Highly informative. Thank you sir.
Thank you for watching!
Can't thank you evough for these tutorials!!! May I ask that you please also show how you fill these with composite, really need to improve my layering technique
I'll put this in my queue, thank you!
@@StevensonDentalSolutions thanks Doctor!!!
@@landofmilkchillies5832 Anytime!
Thanks 💯
Are you studying dental
Wonderful video ,
I still hav not understood why my tutors at the uni want us to do make buccal and lingual walls at 90 degree angle , not flared , for minimal prep composites ,,,
I hear you!
Dr. Stevenson by any chance have you put together a video on all the areas you can use your RGS 1/2 and 3/4 instruments. I think that would be quite
helpful to see. Also do you find that you can check the clearance on the lingual cusps as easily as the buccal cusps with these instruments, or is their a
certain way to check the lingual clearance? Thank you.
Second this. Just purchased.
Thank you Dr. Stevenson. A question if you won't mind. I were taught not to extend the retention grooves to the occlusal surface b/c it will increase the likelihood risk of amalgam/ composite fractures in those specific spots. I don't know if there are articles about that. From your experience do you recommend to extend the grooves to the occlusal surface? Lastly, thank you so much for all the effort and time you put on those videos
I don't know of any articles, just clinical experience - these amalgam slots required tremendous retention. The US exam called the WREB, which licenses dentists in over 30 states requires these grooves to extend to the occlusal surface as well.
Dear Dr. Stevenson,
How should I proceed to make a MO or DO preparation for amalgam on #20 or #29 if the only burs provided are 330, 56 and 169 L. I'm struggling to do undermine and chip with 169L so my buccal clearance is coming out insufficient. Also, the axial depth is becoming less. Which bur should I use to make the box and finish the occlusal outline? I can use 1 mm enamel hatchet and GMTs.
Thank you.
Best,
Adi
Use the tip of the 169L at the occlusal aspect of the wall you wish to extend, then work the bur gingivally. This will create a very nicely undermined bird beak which may be chipped with a sharp hatchet. We refer to this as the top-down approach. Best wishes, Dr. S
Hi Dr. Stevenson, cdca is now offering non-patient restorative exam as an alternative to patient portion due to covid-19 pandemic. Teeth used are carious compeDont #30 mesial for class 2 and #8 mesial for class 3. Could you please post a video for the tutorial for the same. That will be a great help. Thank you!
Yes - I'm on it asap.
@@StevensonDentalSolutions I highly appreciate your time and efforts. Thank you so much.
Thank you Dr
My pleasure Doctor!
Thanx alot for sharing infos 🌹
My pleasure.
Hello Doc! Wouldn’t flaring the proximal walls at the cavosurface Margin for the composite slot affect the 90 degree that is required? Thank you
Flaring inter proximal walls for composite is acceptable and often a goal. The difficulty comes with the restoration - namely the composite must now flow into a tight space between the flare and the matrix band. The injection molding technique of Dr. David Clark works best for these scenarios.
Stevenson Dental Solutions thank you! Do you by any chance have any adex endo vídeos?
Just picking up on a point you made, in what instances would a diamond bur be indicated over tungsten carbide and vice versa (I was taught using a diamond flat fisher bur for class II preps)? Or is it just operator preference?
Good question - I fin that the flat ended diamond work best with hard substrates - dense dentin and enamel, for example. However, with the myriad of choices with handpieces and torque values, many options exist...so, yes, operator preference. On exception would be gold inlays - carbides produce smooth and more define outlines, compared to diamonds.
@@StevensonDentalSolutions that is really interesting! In that case could you even use them in conjunction e.g. flat diamond for gross removal and say a 330 RGS carbide for refinement?
Sir if we can apply base on this preaped cavity or we can do direct restoration
You may go direct to your adhesive protocol.
Sir please make us understand slots and internal boxes too 🙏
Do you mean for extra retention for metal crowns?
@@StevensonDentalSolutions sir in fundamentals of cavity preparation we have studied about secondary retention features which include locks, grooves, coves, skirts, steps, slots, pins unable to understand these☹️
Can denture impression on the back of teeth be fixed if you don’t want partials anymore?
This might be possible - please see a good dentist.
@@StevensonDentalSolutions I’ve been going to my dentist for years, but I wish I would of known I had to get grooves carved in my teeth before getting partials.
@@eclipsegsx765 Yes, I hear you.
Why is the buccal wall going to lean towards the lingual slightly?
To follow the natural contours of the tooth, to make the extension (clearance uniform) and to establish retention.
Hello Dr,
Is there a big difference in anatomy of columbia and kilgore teeth?
Yes. The Kilgore teeth have point contacts. The texture of the Kilgore teeth is harder.
@@StevensonDentalSolutions thankyou!
These retention grooves could also be good for Composite?
Yes, if you lack enough good enamel to secure the seal and retention, they may be helpful.
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