Purpose: To survey pediatric dentists in the United States regarding adverse events during dental care for children. Methods: A self-administered, anonymous online survey was sent to American Academy of Pediatric Dentistry members (N equals 6,327) using REDCap® software (between October and December 2019). The questionnaire (all items with radio-button numerical categories) included five items surveying pediatric adverse event occurrence and seven demographic items. Annualized occurrences of adverse events in US pediatric dental practices were extrapolated from the data collected. Results: The survey response was 11 percent (n equals 704), with 91 percent of respondents reporting that at least one child experienced an adverse event during dental treatment. The two most prevalent adverse events, each reported by 82 percent of respondents, were self-inflicted trauma to soft tissues after local anesthesia and nausea and vomiting, with annualized estimates of 7,816 and 7,003, respectively. Major adverse events (respiratory depression, cardiovascular depression, neurological damage, death) during pediatric dental treatment were reported by 14 percent of respondents (annualized estimate equals 443). "Wrong" errors (wrong tooth/wrong procedure/wrong patient) were reported by 24 percent of respondents (annualized estimate equals 600). Conclusions: Adverse events during pediatric dental care are of noticeable concern with some (wrong tooth/wrong procedure/wrong patient errors) that can be procedurally mitigated.