In this April 28, 2017 photo, therapy dog Zucca sits on the lap of 9-year-old Diego Rosales, who is autistic, during his dental visit to the Los Andes University Medical Center on the outskirts of ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Diego Rosales was so terrified during his ...

SANTIAGO, Chile (AP) - Diego Rosales was so terrified during his dental appointments when he was 4 that he kept biting his dentist. Today, the 9-year-old is far calmer, soothed by the presence of ...