What is dental negligence?
Short answer
Dental negligence is clinical negligence by a dental practitioner — dentist, hygienist, orthodontist or oral surgeon — whose care falls below the standard a reasonably competent practitioner in that field would have provided, and causes harm. The Bolam test applies, as modified by Bolitho.
The same framework applies whether the treatment was provided by an NHS dentist or a private dental practice.
What are the most common types of dental negligence?
Extraction errors
Negligent tooth extraction is one of the most common sources of dental negligence claims. Errors include extracting the wrong tooth, excessive force causing jaw fracture or damage to adjacent teeth, and failure to take adequate X-rays before extraction.
Nerve damage
Inferior alveolar nerve and lingual nerve damage can occur during lower wisdom tooth extraction. Some risk of nerve damage is inherent in this procedure and should be disclosed before treatment. However, where the damage results from a technique failure or from a failure to warn the patient of the risk (consent failure under Montgomery), a claim may be available.
Failed or negligent root canal treatment
Root canal treatment that is performed negligently — leaving canal instruments inside the tooth, failing to treat all canals, perforating the root — can cause ongoing infection, pain, and tooth loss. Where the failure to achieve a satisfactory result was due to substandard technique, a claim may succeed.
Failure to diagnose oral cancer
A dentist examining a patient's mouth has a duty to assess soft tissue for signs of oral cancer. Failure to identify and refer a suspicious lesion — where a competent dentist would have done so — and the resulting delay in diagnosis, can give rise to a serious claim.
Negligent provision of dentures, crowns, or bridges
Poorly fitting prosthetics that cause pain, gum damage, or bone loss; crowns that are fitted without adequate preparation; bridges that fail — where these result from a failure to meet the required clinical standard.
Orthodontic negligence
Negligent orthodontic treatment — including failures in planning, bracket placement errors, or failure to monitor root resorption — can cause lasting damage to teeth and supporting structures.
Failure to take adequate X-rays
X-rays are a standard diagnostic tool in dentistry. Failure to take required X-rays — or failure to identify pathology that should have been visible on an X-ray taken — can result in missed diagnoses of decay, cysts, or bone pathology.
Prescription and anaesthetic errors
A dentist who prescribes an inappropriate antibiotic, or administers a local anaesthetic in a way that causes nerve damage or a serious reaction, may be liable in negligence.
Delayed treatment causing tooth loss
Where a dentist fails to treat decay or periodontal disease that a competent dentist would have identified and treated, and the delay results in tooth loss that would have been avoidable, a claim may succeed.
NHS and private dental negligence — is there a difference?
Both NHS and private dentists owe the same duty of care to their patients. The legal tests — Bolam, Bolitho, Montgomery — apply in both settings. What differs is the contractual relationship (private patients have a contract with the practice) and the defendant (claims against NHS dentists may involve the NHS contractor arrangement). In all cases, the fundamental legal framework is the same.
What do you need to prove?
- Duty of care — the dentist owed you a duty to treat you competently.
- Breach of duty — the care provided fell below the standard of a reasonably competent dentist in the relevant field. An independent dental expert will assess this.
- Causation — the dental failure caused your harm. For example, the negligent extraction caused the nerve damage; the failure to diagnose oral cancer allowed it to progress.
- Damage — you suffered physical, psychological, or financial harm.
Evidence for a dental negligence claim
| Evidence | What it shows |
|---|---|
| Dental records (full) | Treatment history, X-rays taken, clinical notes, consent records |
| X-rays (all available) | Condition of teeth before and after treatment |
| Referral letters and specialist records | If you were referred onward, what was found |
| Photographic evidence | Visible harm where relevant |
| Independent dental expert report | Whether treatment met the required standard |
| Evidence of financial loss | Private dental repair costs, lost earnings, further treatment needed |
What is the time limit for a dental negligence claim?
Three years from the date of the dental treatment, or from the date of knowledge — when you knew or ought reasonably to have known that the dental treatment caused your harm. Children have until age 21.
How is a dental negligence claim funded?
Most dental negligence claims are funded on a Conditional Fee Agreement — no win no fee. You pay nothing upfront and nothing if the claim fails. Success fees are capped at 25% of past losses and general damages; future losses are fully protected.
Frequently asked questions
Can I claim against an NHS dentist?
Yes. NHS dentists owe the same duty of care as private dentists. A claim for NHS dental negligence is brought in the same way as any other clinical negligence claim.
Can I claim for nerve damage from wisdom tooth removal?
Yes — if the nerve damage resulted from a technique failure below the required standard, or from a failure to properly warn you of the risk of nerve damage before the procedure (a consent-based claim under Montgomery).
Can I claim if my dentist missed oral cancer?
Yes. A dentist has a duty to examine soft tissue and to refer suspicious lesions for investigation. Where oral cancer was missed or delayed due to a failure below the required standard, a claim may be available.
What if I had private dental treatment — can I still claim?
Yes. Private dental patients have exactly the same legal rights as NHS patients. The defendant will be the private dental practice or individual dentist.
How much compensation can I claim for dental negligence?
Compensation depends on the harm caused. Modest nerve damage with partial recovery may result in an award of £10,000–£30,000. Permanent nerve damage causing ongoing pain or numbness, or a delayed oral cancer diagnosis, can result in significantly higher awards.
Related guides
- Medical negligence claims — complete guide
- Misdiagnosis claims
- Surgical negligence claims
- How to prove medical negligence
- Time limits for medical negligence claims
- The claims process explained
Sources & further reading
Primary statute, case law and regulator guidance referenced in this article.
- Bolam v Friern Hospital Management Committee [1957] 1 WLR 582 — Case law
- Bolitho v City and Hackney Health Authority [1997] UKHL 46 — Case law
- Montgomery v Lanarkshire Health Board [2015] UKSC 11 — Case law
- General Dental Council — standards for the dental team — GDC
- Limitation Act 1980 — UK Legislation