 Columbia Dental makes it easy to get quality dental care. They're open with late hours, seven days a week, so you get the best dental care whenever you need it. The Dental Guarantee. One day, same day, seven days a week, because your dental health shouldn't wait for Monday morning. ColumbiaDental.com. Did you know that prescription pain relievers have contributed to more overdose deaths than cocaine and heroin combined? Talk with your kids about the dangers of medicine abuse. Visit DrugFree.org to learn more. A message from the Partnership for Drug-Free Kids.