The patient came back a few weeks later with a hole in the zirconia crown i've never seen this. So what had happened is that i must have prepped a little bit too much on the island okay so now where the the crown was had you know 14 microns of cement space everywhere in that one area there was maybe let's say arbitrary 120 micron of cement space in thatone area right and then i didn't put enough cement eitherso you know when mistakes happen is compounding of errors not just one error right? The last tooth in the arch did not bite me at that time so yeah we could that's another way of doing it yeah anything we've missed
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Episode notes
Have you ever prepared the last molar for a crown? And just when you check the occlusal reduction, the patient bites down and as if by magic, the reduction has all DISAPPEARED?! It is the phenomenon that we call ‘The Last Tooth in the Arch Syndrome’
This episode with Dr. Mahmoud Ibrahim will give you more confidence in recognizing, screening, and managing such complications in practice. But like I say in the main episode, optimistically, this phenomenon will never happen to you AGAIN if you follow these protocols for screening.
Protrusive Dental Pearl: Watch out for the patient with quite flat teeth as they are more susceptible to the last tooth in the arch syndrome / bite change. They do not have good posterior coupling/stability and therefore more likely to ‘forget’ their bite as the cuspal inclines do not guide the mandible back in to maximum intercuspation.
Highlights of this episode:
2:41 Protrusive Dental Pearl
6:09 Introduction to Dr. Mahmoud Ibrahim
9:34 What is Centric relation?
10:45 Last tooth in the arch syndrome
13:14 Risk assessment for Last Tooth in the Arch Syndrome
15:52 Screening patient’s CRCP and the degree of slide
17:33 Leaf Gauge protocol for screening CRCP
30:23 Communication with High-risk patients
34:35 Case Discussion
44:36 Management of space loss after preparation
46:24 Dr. Mahmoud’s top tips to prevent the ‘Last Tooth in the Arch Syndrome
58:47 Occlusion Basics and Beyond
Dr. Mahmoud Ibrahim and I are currently working on a huge project called OBAB, Occlusion Basics and Beyond – it will be the best occlusion resource in the Milky Way…and that’s our mission! We want to finally demystify Occlusion and make it Tangible AF!
