Colin Duncan McLauchlan

Introduction

Colin Duncan McLauchlan is a dentist who was registered with the General Dental Council under number 60088. On 5 June 2026, a Professional Conduct Committee of the General Dental Council’s Dental Professionals Hearings Service directed that his name be erased from the register — struck off — with an immediate suspension order. The substantive hearing had started on 19 January 2026 and ended on 5 June 2026, and it proceeded in McLauchlan’s absence. The Committee found widespread failings in examinations, radiograph reporting, diagnosis and consent across 39 patients between 2018 and 2023, and found that he acted dishonestly towards four of them.

Background Information

The published determination says little about McLauchlan’s personal or professional history beyond his registration; its focus is the period from 2018 to 2023, during which it was alleged that he failed to provide an adequate standard of care to 39 patients. The clinical allegations covered failures to conduct extra-oral, soft tissue, periodontal and oral hygiene examinations, failures to report on radiographs, failures to diagnose and treat caries, bone loss and periodontal disease, poor standard crown, bridge and restoration treatment, failures to discuss risks, benefits and alternative treatment options, and failures to obtain informed consent. Alongside the clinical charges sat a group of probity allegations, in which his conduct was said to be misleading, lacking integrity and dishonest. The case was heard by the regulator’s Professional Conduct Committee at a substantive hearing listed by the Dental Professionals Hearings Service, the body that publishes GDC determinations.

The Controversy or Incident That Led to Their Cancellation

Adjudicated vs. alleged. The findings described here are civil-standard findings made by a Professional Conduct Committee sitting as the GDC’s disciplinary tribunal; they are regulatory conclusions, not criminal ones. McLauchlan was never criminally charged with, or criminally adjudicated over, any of this conduct, and no charge is identified in the determination as having been found not proved — the Committee is recorded as having found “the great majority of the clinical charges proved”. The findings of dishonesty are the Committee’s own civil-standard characterisations of his conduct.

The clinical case concerned 39 patients treated between 2018 and 2023. The Committee accepted the expert evidence of Dr Pal that assessments, radiograph reporting, diagnoses and consent discussions were not carried out, drawing the inference from the absence of records. On that basis it found the great majority of the clinical charges proved.

The probity allegations involved four identified patients. In relation to Patient B, it was alleged that McLauchlan denied he had left a dental bur in her mouth and claimed that swallowing it would cause no harm; the Committee found his conduct misleading, lacking in integrity and dishonest, describing him as denying leaving the bur and minimising the risk of swallowing it. In relation to Patient H, he was said to have given an incomplete account of a specialist’s opinion of his crown treatment, and the Committee found he had misrepresented a specialist’s opinion when responding to a complaint. In relation to Patient K, he was alleged to have incorrectly advised that gums normally take six months to heal after extraction; the Committee found he had advised that sockets normally take six months to heal when he knew they should heal within about eight weeks, and that he had failed to urgently refer a non-healing socket that was later found to be an invasive squamous cell carcinoma. In relation to Patient N, he was said to have stated in a referral letter that another dentist had provided poor quality root canal treatment on Patient N when he had provided it himself; the Committee found he had dishonestly attributed his own root canal treatment to another dentist.

Having found the clinical failings proved and dishonesty established in relation to Patients B, H, K and N, the Committee found McLauchlan’s fitness to practise impaired by reason of misconduct. It directed that his name be erased from the register, with an immediate suspension order — the most severe sanction available.

Public Reaction and Consequences

The determination itself records regulatory consequences rather than wider public commentary. The immediate consequence was that McLauchlan was struck off the register: erasure removes a practitioner from the register, and he is no longer permitted to practise the profession in the UK. The Committee paired the erasure with an immediate suspension order, so the sanction took effect without waiting for the usual appeal window. The case is preserved in the public record of the Dental Professionals Hearings Service, and MedicWatch, an independent record of UK healthcare regulator decisions, published a page on the case on 8 July 2026 describing him as struck off the register.

Current Status

As of the determination date of 5 June 2026, Colin Duncan McLauchlan has been erased from the GDC register and is subject to an immediate suspension order. He may not practise dentistry in the UK. Erasure can be reviewed after a minimum of five years, but is otherwise indefinite; unless and until a review restores him, the erasure stands. The Committee’s findings of impairment and of dishonesty towards the four patients remain the recorded regulatory position.

Impact on Their Career/Life

Erasure is the terminal sanction for a clinician’s registration. For McLauchlan, it ended his ability to work as a dentist in the UK with immediate effect, and the indefinite nature of erasure means any return would require a successful review after at least five years. The determination does not record statements about his personal circumstances, and this page makes no claim beyond the published findings. What the record does establish is reputational as well as professional: the findings that his clinical care of 39 patients over five years fell below adequate standards, and that he was dishonest towards four of them — including denying a dental bur left in a patient’s mouth and misattributing his own root canal work — now form part of the permanent public record of UK fitness-to-practise decisions.

Sources

• MedicWatch, “Colin Duncan McLauchlan — Struck off the register · 5 June 2026,” 5 June 2026.source