Verdict of Medical Misadventure after death of woman following dental implants

family of the late Margaret O’Doherty

(L-R) Dr Niamh O’Doherty, Dr Cian O’Doherty Dr Michael O’Doherty, and Dr Clodagh O’Doherty – the children and husband of Margaret O’Doherty (Pic: Collins Photo Agency)

Rachael Liston represented the family of the late Margaret O’Doherty at an inquest into her death on the 12th and 13th January 2023.

Margaret O’Doherty was 72 years old when she passed away a number of days following a dental procedure involving dental implants.

Margaret suffered a cardiac arrest during the dental procedure. She was transferred to St Vincent’s University Hospital and the court heard evidence that the most likely cause of her cardiac arrest was due to the effect of a sedative drug, Midazolam, which she received during the dental procedure.

The Coroner recorded a verdict of medical misadventure and made recommendations that the Dental Council of Ireland review their guidelines regarding the use of sedation in a dental setting.

Read more about the case on:

RTE News Article on the “medical misadventure” verdict

Irish Times Article related to the case article on the dental “medical misadventure” verdict

If you require further information, please contact Rachael Liston, on 019123240 or by emailing

For more information about how we can help you with medical negligence claims, please contact Rachael Liston on 01-9123240 or email