Attendees receive free dental work during the Seattle/King County Clinic, a four-day event offering free dental, vision, and medical care, at Key Arena in Seattle, Washington October 28, 2016.

Optician Ginny Mercer (right) hugs Kanti Kish (left) after helping her select a pair of free eyeglasses during the Seattle/King County Clinic, a four-day event offering free dental, vision, and medical care, at Key Arena in Seattle, Washington October 28, 2016.

Attendees receive free dental work during the Seattle/King County Clinic, a four-day event offering free dental, vision, and medical care, at Key Arena in Seattle, Washington October 28, 2016.

Optician Ginny Mercer (right) helps Kanti Kish (left) select a pair of free eyeglasses during the Seattle/King County Clinic, a four-day event offering free dental, vision, and medical care, at Key Arena in Seattle, Washington October 28, 2016.

Karen Steward (right) holds a tooth after Dr. Greg Guyman (left) removed it from Doug Caruthers (center) during the Seattle/King County Clinic, a four-day event offering free dental, vision, and medical care, at Key Arena in Seattle, Washington October 28, 2016.