Rating: 3
Notes for Improvement:
Just in case I got confused, and you did indeed mean this to be a PFM I’m including a video about measuring shoulder width.
Relevant Tutorials:
[s3mediastream]s3streamingvideo,Cingulum Height,8,0,0,Common-Mistakes+Cingulum_height.mp4,,3600,,,internationaldentistcentral.com,top-left,,no,600,350,yes,bottom,,,,,no,no,no,internationaldentistcentral,0[/s3]
[s3mediastream]s3streamingvideo,Checking Shoulder Width,6,0,0,Common-Mistakes+Checking_shoulder_width.mp4,,3600,,,internationaldentistcentral.com,top-left,,no,600,350,yes,bottom,,,,,no,no,no,internationaldentistcentral,0[/s3], [s3mediastream]s3streamingvideo,Practicing For A Chamfer,23,0,0,Common-Mistakes+Practicing_For_a_Chamfer.mp4,,3600,,,internationaldentistcentral.com,top-left,,no,600,350,yes,bottom,,,,,no,no,no,internationaldentistcentral,0[/s3]
Hi Dr.Alyssa,
For UCSF, the instructions provided for FGC say that the margin has to be 0.5 mm wide, made with 856-16. So what should be the shoulder and chamfer width for PFM?
Thank you
UCSF gives deep chamfers for porcelain margins instead of shoulders, please watch this: https://courses.internationaldentistcentral.com/topic/uop-ucsf-tips-and-tricks/
That deep chamfer can be 1-1.2mm, and chamfer 0.5mm as they said.
Also, you mentioned an undercut in the feedback, but did not specify where exactly in the prep.
Under the entire palatal surface. The palatal wall and labial wall don’t converge forming an undercut.