Wednesday, November 27, 2013

Why do I need to replace this crown-Overhang!



One of the most challenging aspects of clinical practice is convincing patients to go through with elective asymptomatic treatment. One such area is crown and bridge.


 This X-ray will appear repeatedly on this blog. Right now let's focus on #19-there is a clear overhang on the distal aspect!

This is how we explain the need to replace this crown to the patient:






 


" A crown needs to fit the tooth like a skull-cap fits the head-tightly around the seam. This crown is sitting on the tooth like an oversized hat-sticking out! This will eventually lead to food impaction leading to a cavity on the tooth and/or bone loss which will eventually lead to the tooth needing to be extracted."

It helps to have a comparative bitewing to show a well sealed margin like the one on the right.



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