DENVER (CBS4) – Hundreds of Coloradans have something to smile about after a dentist’s office opened its doors Monday to those in need of dental care.

Comfort Dental first provided the free dental care 29 years ago in Colorado. Since then. the “Care Day” has grown to all Comfort Dental offices across 10 states.

On Monday about 300 dentists and 1,300 staff members donated their time at all of the Comfort Dental offices.

More than 4,000 people were expected to get cleanings, extractions or an occasionally more serious procedure.