Hello Dr. Nasseh,
Great video! Some questions for you:
1. How did you cement temporaries in situations like these where there is no tooth structure remaining above the gingiva?
2. Also how do you cement the temporary in situations like these while maintaining proper isolation? In order to cement the temporary you would have to remove the opal dam to expose the margin of the tooth, which is where the gingiva and the tooth meet, thus potentially contaminating the canal with seepage of fluid from the gingiva, saliva, etc. Is there a better way to maintain isolation, or in situations like these where there is extensive loss of tooth structure is it just a risk that we have to take?