(Radio Iowa) – More than 500 people were lined up this (Friday) morning as the annual free dental clinic known as the Iowa Mission of Merch opened its doors in Waterloo. Iraq War Army veteran and Independence resident Cassidy Collins says he’s had trouble getting into a dentist.

Collins says it’s been eight years since his last dental checkup.

The 100 volunteer dentists and hygienists anticipate providing all levels of dental care. The clinic is on a first-come first-severed basis and runs today until everyone it taken care of and then will open again Saturday at 6 a-m.