caused by drinking coke all the time a few years ago and a stupid tendency I've always had to 'swish' things in my mouth before I swallow.

Examples: http://doctorspiller.com/images/TMJ/Attrition.jpg
http://www.springerimages.com/img/Images/Springer/PUB=Springer-Verlag-Berlin-Heidelberg/JOU=00784/VOL=2008.12/ISU=S1/ART=2007_174/MediaObjects/MEDIUM_784_2007_174_Fig1_HTML.jpg

No adverse symptoms, just noticed it when I looked at my teeth in the mirror. Do you reckon the dentist would do anything about it or just advise me on how to prevent it worsening?

Are YOUR molars cupped?