Cause of Death Revealed After California Girl, 9, Fell Asleep at Home After Dental Procedure and Never Woke Up

Parents and caregivers facing rare pediatric conditions often find themselves navigating diagnostic testing, urgent care decisions, and questions about whether private health insurance or maternity insurance covers rare complications tied to outpatient anesthesia.

Dr. Ryan Watkins, the anesthesiologist and treating dentist at Dreamtime Dentistry, confirmed the condition can be triggered by nitrous oxide, or “laughing gas,” which was administered during the three-hour dental procedure.


A Routine Procedure Turns Fatal

Silvanna was referred to Dreamtime Dentistry due to her age and “acute situational anxiety,” according to Dr. Watkins. The planned treatment included a root canal on a molar, restoration with a crown, and the extraction of decayed baby and permanent teeth. One permanent tooth also required a crown.

The night before the operation, Silvanna had a 101-degree fever and was given Children’s Tylenol, per NBC News. Her mother reported that her symptoms resolved.

On the morning of the procedure, Silvanna complained of a headache but did not appear distressed, the medical examiner’s report stated.

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