This video includes all of the following videos from Course10 abutment construction.

[#1 Direct and indirect methods]
In our daily clinical practice, we rarely see an inactive tooth.
In most cases, core construction is required after root canal filling or restoration of an inactive tooth, and this book explains the incidence of problems with metal cores, resin cores, and fiber cores, citing the papers. He also explains the advantages and disadvantages of the direct method and cases in which the indirect method should be used.

[#2 Crown removal to bulkhead formation]
Continuing from #1, he explained the timing of core construction from the perspective of infection using the paper and described the best time to perform the construction.
Then, in the actual video, he explains in detail the series of steps from crown removal, caries treatment of adjacent teeth discovered incidentally, bulkhead, and formation.

[#3 Causes of root apex lesions]
The incidence of MB2 in maxillary #6 is quite high and can be difficult to detect with the naked eye.
Please present your own past cases and see how Dr. Uchiyama was able to pursue the cause of the problem by using CT and microscope due to the change in his past and present practice style.

[#4 Situations where rubber dam cannot be applied]
When starting root canal treatment, you may encounter many situations where you cannot clamp the rubber dam because of the residual root after removing the core and caries.
In the video of the actual treatment, he explains the steps from the formation of the bulkhead to the creation of the provisional restoration, and also explains the key points of each step.

[#5 Cases to be saved or not]
Continuing from #4, this video shows the treatment steps from root canal treatment after septal formation to root canal filling and provisional restoration.
The latter half of the case is also a very difficult case to decide whether to treat or not, but Dr. Uchiyama chose to preserve it and explains in detail the steps leading up to the root canal filling.