NASA first addressed this during the Skylab training. They sent two of each crew to a 14-day crash course at an Air Force dental clinic, where they took volunte

NASA first addressed this during the Skylab training. They sent two of each crew to a 14-day crash course at an Air Force dental clinic, where they took volunteers and started pulling teeth from patients. More info: https://books.google.com/books?id=sR5Cm_zeIekC&lpg=PA84&ots=_1o32fu-9i&dq=Joseph%20Kerwin%20dental%20training&pg=PA84#v=onepage&q&f=false https://books.google.com/books?id=sR5Cm_zeIekC&lpg=PA84&ots=...