Goncalo Beirao Magro Gomes Sanches
Introduction
Goncalo Beirao Magro Gomes Sanches is a dentist formerly registered with the General Dental Council (registration number 254566) who was erased from the register — struck off — in August 2024 after a Professional Conduct Committee found his fitness to practise impaired by reason of misconduct. The case concerned his care of Patient A between 2016 and 2020 — ten implants and bridgework that repeatedly failed — and his handling of her complaint, which the determination records as a complete non-engagement with the Dental Complaints Service (DCS), the GDC and the hearing itself.
The initial hearing was held remotely on 21 August 2024. Sanches was neither present nor represented, and the committee proceeded in his absence after finding the notification properly served. It erased him, revoked his interim suspension and imposed an immediate suspension under section 30(1) of the Dentists Act 1984 pending the erasure taking effect.
Background Information
The determination records little about Sanches personally, and this page does not speculate. In 2016 Patient A attended to have her upper partial dentures replaced with an implant-supported bridge, and four implants were placed in her upper jaw; in 2019 the same treatment followed in her lower jaw, with six more. Both temporary and definitive bridgework fractured or broke, supporting teeth became chipped or fractured, and the complications accumulated over roughly six years while she remained under his care, ultimately requiring remedial work from other dentists.
Sanches took no part in the proceedings. The notification was posted to his registered address on 17 July 2024 by International Special Delivery — Royal Mail records show delivery on 23 July — and a link was emailed to two addresses the GDC held for him. There was no response by the 26 July deadline, and with six witnesses warned the committee proceeded. The charge was amended during the hearing to correct two typographical errors, including its start date. The committee heard Patient A’s adult son, the initial complainant; the practice manager; GDC witnesses; and expert dentist Professor Ian Brook. Patient A was not called, given her advanced age and the distress it would have caused her.
The Controversy or Incident That Led to Their Cancellation
Adjudicated vs. alleged. The findings below are regulatory findings made on the balance of probabilities by a GDC Professional Conduct Committee — not criminal convictions, and no criminal charge arises in this case. Sanches was absent and unrepresented; the committee expressly noted that his absence added nothing to the GDC’s case and was not an admission. No dishonesty finding was made, and two matters were not proved.
Charge 1 alleged an inadequate standard of care to Patient A from 22 February 2016 to 16 November 2020, in four respects. On assessment and planning, the committee found proved that the records showed no adequate planning of the bite-related aspects of the complex restorative treatment. Professor Brook was not critical of the surgical implant placement itself; his criticisms, which the committee accepted, targeted the wider planning, including a “failure to assess and take any account of Patient A’s skeletal pattern and dental occlusion”.
On radiographic practice, it found proved a breach of the Ionising Radiation (Medical Exposure) Regulations 2017 (IRMER) duty to justify and report on radiographs: thirteen images over three years, including cone beam CT scans, went unreported.
On informed consent, the charge was proved only for the 2016 treatment: the information given was generic and not tailored to her, and the “Bone graft consent” documentation described the graft materials as “synthetic” when they were derived from cow bone and pig collagen — a breach of her right to know what was to be implanted into her. The 2019 limb was not proved, the records broadly indicating consent was obtained.
On treatment and aftercare, it found proved a sustained six-year failure to diagnose why the restorative work kept failing: no occlusal diagnosis at assessment or at the emergency appointments she attended, only notes that a tooth had chipped or bridgework had broken — and his treatment ultimately remained incomplete.
Charge 2 — failing to respond adequately to Patient A’s complaint — was not proved. Her son emailed the complaint to the practice on 25 June 2020 and the practice manager said she would forward it, but the committee was unclear what details were ever put to Sanches and the GDC had not discharged its burden of proof.
Charges 3 and 4 were proved. From 21 May to 27 July 2021 he failed to engage with the DCS about the complaint, ignoring five emails with repeated deadlines after her son escalated it on 31 March 2021. From 13 June to 30 December 2022 he equally failed to cooperate with the GDC’s investigation, never providing indemnity evidence or employment details; there has been no response since.
Public Reaction and Consequences
The committee found the clinical failings — the inadequate care, the IRMER breach and the 2016 consent failure — amounted to misconduct, as did his non-engagement with the DCS and GDC. Remediable in principle, the clinical failings were unremedied: he showed no evidence of remediation, insight or remorse, and there was a real risk of repetition and harm to patients. The non-engagement was attitudinal and continuing: the determination records that he “appears to have abandoned his regulatory obligations in the United Kingdom”.
In aggravation it cited actual harm to Patient A and a remaining risk to others; misconduct sustained and repeated over a lengthy period spanning the 2016 and 2019 treatment; a blatant disregard for the GDC’s role; and a complete lack of insight. The only mitigation was the absence of previous findings. With conditions unworkable for a registrant who ignores his regulator, and non-cooperation “fundamentally incompatible with professional registration”, erasure was the necessary and proportionate sanction.
Current Status
Sanches is erased from the GDC register — struck off — recorded by MedicWatch as effective 23 August 2024. The committee revoked his interim suspension and suspended his registration forthwith under section 30(1) of the Dentists Act 1984; unless he appealed within 28 days, his name would be erased on expiry of that period. The hearings service records the outcome as “Erased and Immediate suspension”.
Impact on Their Career/Life
The erasure removes Sanches from the register of dentists legally entitled to practise in the UK. What weighed most heavily was not only Patient A’s care but his refusal to participate in his profession’s regulation. Unless he appeals, the erasure is final — and on this record there was no insight on which any restoration could be built.