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The NHS in England requires the reporting of defined "never events" that are directly related to patients' safety. Analysis of data from 2012-2015 has been published previously in this journal. An examination of continuing data from 2015-2019 shows that "wrong tooth/teeth removed" has not reduced in frequency and it still remains a common "wrong-site surgery" event accounting for between 16% and 24% of wrong-site surgery never events and 7%-10% of all never events reported. Hospitals and community Trusts remain the main source of such reports, although some now originate from primary-care-based dental settings. Further efforts have focused on prevention, and the implementation of existing measures to reduce the risk of wrong tooth extraction, is warranted., (Copyright © 2019 The British Association of Oral and Maxillofacial Surgeons. Published by Elsevier Ltd. All rights reserved.)

Over recent years there has been an increased emphasis on improving patient safety in all branches of medicine, with reducing wrong tooth extraction being a priority in dentistry. The true incidence of wrong tooth extraction is unknown but it is considered an avoidable harm and is a significant source of dental litigation. Interventions to reduce wrong tooth extraction include educational programmes encompassing human factor training, patient assisted identification, the use of checklists, marking of surgical sites and implementation of patient safety guidelines. Identified risk factors which make wrong tooth extraction more likely include; suboptimal checks and/or cross checking of relevant clinical information, unclear diagnosis, unclear documentation, ambiguity regarding notation of molar teeth, orthodontic extractions, and extractions where there are multiple carious teeth and extractions in the mixed dentition. Accurate and timely reporting of wrong tooth extraction incidents followed by analysis and sharing of findings together with implementation of improved practice will help to minimise risks of wrong tooth extraction.

The NHS in England has identified several adverse incidents that involve patients, including operations done at the wrong site, as "never" events. We examined published data from the period April 2012 to October 2015 and found that "wrong tooth/teeth removed" is the most common "wrong site" event, and accounted for between 20% and 25% of wrong site surgery never events, and 6% - 9% of all "never" events. All "wrong tooth/teeth removed" events seem to have been reported only by hospitals or Community Trusts. It is important to find out how these events are recorded and to find ways to prevent them., (Crown Copyright © 2016. Published by Elsevier Ltd. All rights reserved.)

Extraction of the wrong tooth or teeth is a serious and avoidable clinical error causing harm to the patient. All NHS Trusts in England are required to use a surgical safety checklist in operating theatres to prevent incorrect site surgery and ensure safe management of patients. However, the majority of patients have dental extractions and other oral surgical procedures undertaken on an outpatient basis and these patients are also at risk of having an incorrect site surgical procedure such as a wrong tooth extraction. We describe our experience in developing, introducing and refining a surgical safety checklist for outpatient oral surgery along with the key strategic actions needed to ensure effective cultural change and optimum patient safety in the outpatient setting.