Most kids, and some adults, don't like going to the dentist.
Snuffy Smith is no exception. Billy DeBeck's backwoods comic strip star does all he can to avoid a nearsighted dentist in "Ain't It The Tooth". The copyright says 1963, but it appears it might've been released to television the following year. Paul Frees voices Snuffy, the dentist, and Barney Google.
Writer Howard Post is better known for creating his own comic strip, The Dropouts, which would be adapted for television themselves as part of Archie's TV Funnies in 1971, and the DC Comics series, Anthro.