Muddy summer days, bikes and dental cleanings...

As the end of summer approaches I look back at some of my favorite mountain bike rides. The Wilmington area received a lot of rain this summer, sometimes for days on end. As a result, the trails were very muddy all summer long.
While riding muddy trails is highly discouraged due to all the erosion that can be created, one of our area's best trails can handle mud very well and is often open even after it has rained.

The picture below was taken after a few muddy rides.

It reminded me of the importance of regular dental cleanings. Every 6 months at a minimum, as recommended by the American Dental Association.
What would happen if I continued riding with my chain and drivetrain looking like that? Premature wear,  diminished enjoyment and expensive repairs come to mind.
Much like teeth, which if not professionally cleaned periodically, will certainly end up with the above problems and much more.
A new chain can be purchased easily and inexpensively, new teeth can't.
Hope you all had a great summer! ---Daniel