Valenzuela then left the room and had no idea that her son was having a medical emergency and didn't realize something was wrong until paramedics arrived.
"His heart just stopped beating. Just out of nowhere, so something must have gone wrong," she said. "We weren't notified about him, about anything."
Abiel was rushed to the hospital, where he was pronounced dead. Authorities believe that the young boy had a reaction to the medication.
"It is believed that the child had an unanticipated reaction to medicine provided during the course of his dental procedures," Wichita Police spokesperson
"Didn't expect to come out of there without a child. I don't think any parent any parent ever expects to come out of a place where you feel like they'd be secure," Valenzuela said. "But we did."