McKinney doctor treats homeless Samaritan Inn residents with free dental care

Its been about two years since Donna Johnson last sat in a dentists chair.

Homeless and living in a shelter the last four months, she hasnt been able to afford it.

And she is anxious.

She crosses and uncrosses her legs. She stares at her hands in her lap. She twists the ring with a purple stone on her index finger.

She knew there was something wrong with a couple of back molars. One filling has fallen out. Another is cracked. It used to be painful to drink something cold or bite into something hot.

Now, it constantly aches.

She waits for an answer from Dr. Anthony Do. He says she needs a root canal, but thats not an option that day. Johnson opts to p