Most people walk into a dental clinic expecting, at worst, a little discomfort and a bill higher than quoted. Some walk out with a healthy tooth extracted in place of the diseased one, a root canal that left a deeper infection behind, an implant that never integrated, or orthodontic treatment that ended with loosened roots and a bite that no longer closes properly. The line between a recognised complication of treatment and a medical error that gives rise to liability is a fine one, and it is not drawn by how upset the patient feels. It is drawn by what the clinical file, the radiographs and the court-appointed expert say.
This article deals with dentistry only, because dentistry has features that other specialties do not share to the same degree. The setting is usually a private clinic or a multi-dentist centre; treatment unfolds over many visits; radiographs are part of the diagnosis itself; and therapeutic and cosmetic work are so intertwined that they are hard to separate. The general rules of medical liability are covered in our article on medical liability under Kuwaiti law, and we do not repeat them here. We apply them to the dental chair.
We walk through the common categories of dental error, the nature of the dentist's obligation (care versus result), the clinic's liability for its dentists, assistants and technicians, the proof you will need, and the three routes available to the patient: an administrative complaint, a civil claim and a criminal complaint. We close with three hypothetical scenarios, a comparison of the routes, and answers to frequent questions.
Quick Answer
A dentist's obligation is, as a rule, to exercise due care, not to guarantee a cure. Liability does not arise simply because treatment failed. It arises where the dentist departed from accepted professional standards: extracting the wrong tooth, placing an implant without adequate imaging of the jaw, leaving an instrument fragment in a root canal, or treating without informed consent about the risks and alternatives. In purely cosmetic or prosthetic work, some approaches treat the obligation as closer to one of result. That is a question for the court on the facts, the contract and the advertising, and we do not treat it as settled in either direction.
A private clinic is generally answerable for the people who work for it: dentists, assistants, radiography staff and laboratory technicians, under the rules on a principal's responsibility for its subordinates. It may also be directly liable in contract for the treatment agreement it concluded with the patient. The patient has three avenues, which may be combined depending on the case: an administrative complaint to the competent health authority, a civil action for compensation, and a criminal complaint where the conduct amounts to an offence such as negligent bodily harm. Proof is where these cases are won or lost: a complete clinical file, before-and-after radiographs, and an expert report ordered by the court.
The Legal Framework for Dental Liability
There is no stand-alone statute on dental malpractice. Liability is governed by three overlapping layers. The first is the Civil Code (Law No. 67 of 1980), which contains the general rules on contractual and tortious liability, compensation for harm, and liability for the acts of others. Where a treatment contract exists between patient and dentist or clinic, a failure to perform it gives rise to contractual liability. Where there is no valid contract, or the harm lies outside it, the claim is in tort. Our general article on medical liability explains that distinction in more detail.
The second layer is professional and health regulation: licensing of practitioners, licensing of private health facilities, requirements for equipment, sterilisation and record keeping, and duties owed to patients. We outlined its main features in Regulation of health professions in Kuwait and the Public Health Law and patients' rights. This layer matters in dental cases because it tells you whether the person who treated you was licensed for that kind of procedure and whether the clinic met its conditions. It opens two doors: administrative and disciplinary accountability, and proof of fault, since practising without a licence strengthens the injured patient's position. We have deliberately not cited a number for the medical practice statute, because statute numbers should be checked against the official current text.
The third layer is criminal law: the Penal Code (Law No. 16 of 1960) and the Code of Criminal Procedure (Law No. 17 of 1960), which cover offences such as negligent injury, together with the route of a civil claim joined to criminal proceedings, discussed in civil claims before the criminal court. Alongside these, the Law of Evidence (Law No. 39 of 1980) governs the burden of proof, presumptions and appointment of experts; the Code of Civil and Commercial Procedure (Law No. 38 of 1980) governs filing, jurisdiction and appeals; and the Consumer Protection Law (Law No. 39 of 2014) may apply where the clinic sells services with advertising or promises that turn out to be misleading.
Substantive Rules: Common Dental Errors and the Nature of the Obligation
Extractions
Extraction looks simple and is one of the easiest procedures to get badly wrong. Typical faults include removing a healthy tooth instead of the diseased one because of a diagnostic or identification lapse before anaesthesia; fracturing a root and leaving it without telling the patient or treating it; injuring the adjacent tooth, the jawbone, the lower alveolar nerve or the maxillary sinus; and giving local anaesthesia without screening for allergy or conditions such as diabetes, clotting disorders and blood-thinning medication. Extraction of a sound tooth is among the cases where the fault approaches the obvious, because a dentist can hardly claim to have followed accepted practice when he removed something other than what was agreed. The amount of compensation still depends on what was actually lost and what can be restored by an implant or a prosthesis.
Root canal treatment
Endodontic errors include misjudging whether treatment is needed, missing a canal, overfilling beyond the root tip, breaking an instrument inside the canal and concealing it, perforating the root wall, using unsuitable materials, leaving the tooth without a proper final restoration so that the canals become contaminated, and delaying referral to a specialist when the case becomes complicated. The critical question is how to separate a natural failure from negligence. A proportion of root canal treatments fail for anatomical reasons even in the best hands, so failure alone does not prove fault. What counts is the radiographs taken during and after treatment, whether the recognised steps were carried out, and whether the patient was told promptly what happened.
Dental implants
An implant is a surgical procedure that depends on prior planning: a CT scan, assessment of bone volume, mapping of nerves and sinuses, then placement, a healing period and finally the prosthesis. Errors include placing implants without adequate imaging; positioning near the inferior alveolar canal so as to cause lasting numbness of the lip and chin; entering the sinus; choosing an implant unsuited to the bone; failing to treat gum disease beforehand; operating without checking the patient's general health; and failing to follow up an infection. Implants also produce the classic dispute over who bears the failure of integration: the dentist, or the patient who smoked, neglected hygiene or missed review appointments. The expert resolves that by examining the file and whether post-operative instructions were given in writing and signed.
Orthodontics
Orthodontic treatment is long, and its faults include starting without a proper study of the case and panoramic and lateral radiographs; moving teeth while gum disease is active; applying excessive force that causes root resorption; neglecting regular monitoring; leaving the patient for months without adjustment; abandoning treatment midway; and handing a case that needs a specialist to a general dentist, producing outcomes inconsistent with what was advertised. Many orthodontic disputes concern the agreed duration of treatment and fees paid in advance, so the therapeutic and contractual or consumer aspects overlap.
Prosthetics and cosmetic dentistry
Crowns, veneers, whitening and smile design sit between therapy and aesthetics. Faults include excessive reduction of healthy teeth without need, ill-fitting restorations causing gum inflammation or a faulty bite, whitening at unsafe concentrations, and exposure to materials without consent. We discussed the cosmetic side of medical liability in Medical liability in cosmetic procedures in Kuwait and here only apply it to teeth.
Care versus result in dentistry
The settled starting point in legal writing and practice is that a doctor's obligation is one of care, because recovery depends on biological factors outside his control. If he exercised honest, vigilant effort consistent with accepted science, he is not liable even if the hoped-for result was not achieved. Dentistry, however, has a grey area. Technical work such as crowns, bridges and dentures is regarded by many as closer to a contract for the making of a product than to treatment, so conformity with the agreed specification may be demanded; that is the part of the work that may be seen as an obligation of result. Purely cosmetic work requested by a healthy person is the second grey area: some opinions heighten the dentist's obligation until it approaches result, others keep it an obligation of care but a stricter one. This is a point of disagreement, and we do not resolve it. The court looks at what the patient was actually promised, the advertising, the written agreement and the nature of the work.
Informed consent
The patient is entitled to know before treatment the diagnosis, the options, the risks of each option, the expected success and the cost, and to agree with understanding. Signing a generic form saying "I consent to any procedure" is no substitute for a real explanation, especially for non-urgent work such as implants, orthodontics and cosmetic dentistry. A failure of informed consent can be a fault in its own right even where the technical execution was sound, and may give rise to compensation for loss of the opportunity to choose.
Heads of compensation
Compensation covers loss suffered and profit lost where these are a natural consequence of the fault: the cost of corrective treatment, the value of the lost tooth or implant, fees paid for work that was not completed or was spoiled, loss of earnings, and non-material harm for pain, disfigurement and social embarrassment, which we explain in compensation for non-material damage. The judge assesses compensation after the expert's report. There is no rigid scale and we do not quote figures, which vary with each case.
The clinic's liability for dentists, assistants and technicians
A fault in a clinic is not always the treating dentist's alone. There is the assistant who prepares instruments and sterilises, the radiographer, the laboratory technician who makes the restoration, the nurse who administers some medication, the receptionist who may delay an emergency, and a visiting dentist who works on a sessional basis. Who answers for what?
First, the clinic as principal. Under the Civil Code, a principal is liable for harm caused by a subordinate through unlawful conduct committed while performing his duties or because of them, where the principal has actual authority to supervise and direct. We explained the rule in liability for the acts of others. Applied to a clinic, a dentist employed or engaged inside the clinic with its consent, and its assistants and technicians, are usually subordinates, so the clinic answers for their faults and cannot say it did not perform the treatment itself.
Second, contractual liability of the clinic. If the treatment contract was made with the clinic and the receipt is in its name, the clinic is the contracting party and answers for performance carried out through those it uses. That can make the patient's task easier, since proving the contract and non-performance may suffice. The clinic may also breach safety duties: sterilisation, serviceable equipment, and having what is needed to deal with acute complications such as a severe allergic reaction.
Third, the visiting or independent dentist. Some clinics rent chairs to dentists who contract with patients directly and bill them in their own name. Whether such a dentist is a subordinate or independent depends on indicators of control: who set the fee, who received it, in whose name the receipt was issued, whether the dentist follows clinic instructions and hours, and what a patient would reasonably assume on seeing the clinic's signboard. An injured patient need not abandon the claim because the internal arrangement is unclear. He can sue the clinic and the dentist together and leave the court to allocate responsibility.
Fourth, recourse between those liable. A clinic ordered to pay may seek recourse against the dentist at fault in accordance with their relationship, and where several are liable they are jointly answerable to the injured person under the general rules, with their shares settled between themselves. The patient benefits from having more than one debtor, especially if the dentist has few assets or has left the country.
Fifth, the consumer dimension. Where the clinic advertises services, prices and guarantees, the relationship may touch the Consumer Protection Law (No. 39 of 2014). The court may then look at the accuracy of the advertising and whether the service matched what was promised. See our guide to consumer protection in Kuwait. Exaggerated medical advertising, such as a "guaranteed result", also tends to make courts stricter in assessing the dentist's obligation.
Principles of the Court of Cassation
The Court of Cassation has consistently held that a doctor's obligation is in principle one of due care; that he is liable for any failing that a vigilant practitioner of his level, placed in the same circumstances, would not have committed; that the burden of proving the failing lies on the person who alleges it; and that a minor technical error on which scientific opinion legitimately differs does not give rise to liability where the doctor followed a recognised scientific view.
It has equally held that whether a medical fault occurred, and whether it caused the damage, are technical questions on which the trial court may seek expert assistance; that the court may adopt the expert's report if it is satisfied with it and it rests on sound foundations; that it is not bound to appoint a further expert when the facts are clear to it; and that if it departs from the report it must give sound reasons. Conversely, it may not decide a purely technical issue by its own opinion without support from expertise.
The Court has also recognised that the trial judge assesses compensation to make good the proven harm, without excess; that a principal's liability for a subordinate rests on a relationship of subordination and on the fault being committed in the course of or because of the duties; that the principal may recover from the subordinate what it paid; and that a final criminal judgment has binding effect before the civil court on matters it necessarily decided.
Methodological note: the foregoing states general principles drawn from the direction of the Court of Cassation's case law. It is not a citation of any particular judgment, and we have not cited appeal numbers, since each ruling has its own facts and the weight of a ruling depends on them. Anyone preparing a pleading must consult the published judgments and check whether a particular line has changed.
Practical Steps and Evidence
Step one: secure your health before the dispute
Have the condition treated by another, independent dentist as soon as possible. That protects your health and documents the damage in an independent report. Do not return to the same dentist for correction once trust has gone, unless the situation is an emergency, and ask the new dentist for current radiographs. Ask him to describe the condition objectively in the report without rushing to judge a colleague; an objective report carries more weight.
Step two: request the clinical file and radiographs
Ask the clinic in writing for a complete copy of your file: diagnosis, treatment plan, session records, drugs and anaesthesia, consent forms, invoices, and all radiographs in their original digital form, not only printouts. If the clinic refuses, see our article on a hospital's refusal to release the medical file. Its title refers to hospitals, but the logic applies equally to private clinics. Record the refusal in a formal notice or traceable message, since it may later count against the clinic.
Step three: document what happened
Keep messages, call logs, the advertisements you relied on, receipts, before-and-after photographs of the mouth, the names of those present at appointments, and anything said by way of admission or promise to fix. Do not rely on memory. Write down the facts with dates while they are fresh.
Step four: formal demand
Before escalating, many disputes are resolved by a written notice that identifies the fault and asks for correction, a refund or compensation, sent by a means that proves receipt. The clinic may carry professional liability insurance, in which case the insurer may become involved and make settlement easier. Our article on health insurance claim refusals addresses a different subject but shows how insurers approach a claim.
Step five: choose the route
The choice is strategic. An administrative complaint to the competent health authority is quicker and cheaper and may lead to an inquiry and administrative or disciplinary measures against the clinic or dentist, or to a technical committee, but it does not award compensation. A civil action is the route to compensation, filed before the competent civil court under the Code of Civil and Commercial Procedure (Law No. 38 of 1980); the court will usually appoint a medical expert. A criminal complaint goes to the investigating authority where the harm is serious, such as loss of a tooth or organ, permanent injury or death, and you may join a civil claim before the criminal court. Combining routes has consequences: the civil case may be stayed pending the criminal one in some circumstances, and the criminal judgment affects the civil case.
Evidence
Under the Law of Evidence (Law No. 39 of 1980), whoever alleges bears the burden of proof, so the patient must prove fault, damage and causation. This is the difficulty in these cases: the patient does not have the file, cannot read radiographs, and the dentist wrote the record. Courts therefore ease the burden through expert evidence, the weighing of presumptions, and ordering the clinic to produce what it holds.
The clinical file is the first and most important witness: diagnosis, plan, sessions, materials, anaesthesia and consents. What is missing is often read against the party whose duty it was to record it. A clinic with no systematic record, a record in one hand and one ink for sessions spread over months, or a file with no written consent, raises questions for the court. See our article on the medical file for how to demand it. The court may order the clinic to produce the file and may treat refusal as a presumption.
Radiographs are the visible truth of dentistry. Images taken before treatment show whether the tooth really needed extraction or a root filling; images during treatment show the length of the filling, the position of the implant or a broken instrument; images afterwards show the result. They range from periapical films to panoramic images and cone-beam CT. Do not accept paper copies alone: ask for the digital files with dates, because edited or inconsistent images raise doubt. If a clinic did no imaging before a procedure that science requires it for, such as an implant, that in itself suggests a failure of care.
Medical expertise is often the backbone of the judgment. The court appoints an expert or a committee, who answers: was the diagnosis right? Did the procedure follow accepted practice? Was there a fault? How does it relate to the present damage? Can it be corrected, how, and at what cost? Is there any permanent disability? Our practical advice is to draft specific questions for the expert rather than leave the assignment general, to attend the discussion with written technical notes, and to bring your own independent report. See Medical expertise before the Kuwaiti court, including the difference between the judicial expert and an administrative technical committee. You may object to the report, question the expert and ask that his assignment be repeated if the report is deficient; the court has the final say.
Witnesses and presumptions. Assistants, reception staff and other patients may be witnesses to what was said, and text messages may reveal an admission of error or a promise to fix it. Electronic records are admissible under the Electronic Transactions Law (No. 20 of 2014) on its conditions. The clinic's conduct after the event also helps: did it offer free correction or a refund? That is not conclusive proof of fault, since it may reflect concern for reputation, but it forms part of the judge's assessment.
Documents to assemble
- Your civil ID, the treatment contract or written plan and the cost estimate.
- The full clinical file including consent forms and post-treatment instructions.
- Digital radiographs before, during and after treatment, with dates.
- Invoices, receipts, payment statements and any advertisement or price offer.
- An independent dental report describing the condition, the correction needed and its cost.
- Messages, lawful recordings and the names of witnesses.
- Sequential photographs, and documents showing lost earnings or absence from work.
Hypothetical Scenarios
The scenarios below are hypothetical, for illustration only. They do not describe real cases, and the final characterisation of any event depends on its documents and the expert's report.
Scenario one: a healthy tooth is extracted
Salma attends a private clinic with pain in a lower molar. The dentist diagnoses infection and extracts. The pain continues, and another dentist finds that the diseased molar is still in place and the extracted tooth was the healthy one beside it. She asks the clinic for the radiograph taken that day and is told it "was not saved". Three points matter. First, the mistaken identification of the tooth is close to obvious fault. Second, the absence of imaging and records weakens the clinic's defence. Third, compensation covers the cost of replacing the lost tooth by an appropriate clinical method, pain, and non-material harm. The plan is a formal notice, an independent report, then a civil claim against the dentist and the clinic together, with a parallel administrative complaint. A criminal complaint may also be considered if the injury amounts to harm through negligence.
Scenario two: an implant that affects the nerve
Khalid has an implant placed in a lower molar at a dental centre. When the anaesthetic wears off, numbness remains in his lower lip and chin. He is told it is "normal and will pass". Months pass without improvement, and a CT scan shows the implant very close to the inferior alveolar canal. The central questions are whether a CT was done before placement, whether the safe distance was measured, whether he was warned of this complication and signed to that effect, and whether he was referred to an oral surgeon when numbness appeared. If adequate planning was missing, fault is established. If the complication was rare, precautions were taken and explained, and prompt treatment was given, liability may fall away or weaken. This case shows why the patient needs expert evidence and why written informed consent matters.
Scenario three: orthodontics left half-finished
Noura pays the full orthodontic fee in advance to a clinic with several dentists. After some months her treating dentist leaves, and a new dentist who is unfamiliar with the plan takes over. Root symptoms and gum recession appear, and the clinic refuses to refund the part not performed. The clinic is the contracting party and answers for its dentists. It also bears contractual responsibility for abandoning or disrupting the treatment. She may seek partial termination and a refund for the unperformed portion, plus compensation for health harm if the expert links it to the interrupted treatment. A fresh panoramic radiograph compared with the one taken at the start will help. The matter may also be put to the consumer protection authority if the service fell short of what was advertised.
Comparison of the Routes
- Administrative complaint to the health authority: faster and cheaper; it targets professional and regulatory accountability of the dentist and clinic and checks licensing and conditions. It awards no compensation. It may produce a technical finding that helps later, though it is not binding on the court and does not replace judicial expertise. An administrative decision may itself be challengeable before the administrative judiciary under the Administrative Circuit Law (No. 20 of 1981), depending on the case.
- Stand-alone civil action: the route to full compensation, material and non-material. It takes longer, needs medical expertise, and is subject to appeal and cassation. It suits a fault that does not amount to a crime, or where you want to focus on civil loss.
- Criminal complaint with a civil claim: suited where the harm is serious or permanent, or there is forgery in the file or unlicensed practice. The investigating authority has stronger tools and the pressure is greater. The drawbacks are the higher criminal standard of proof, the possible effect of an acquittal on the civil case depending on its basis, and the effect of withdrawal or settlement.
- Settlement: fastest and least damaging to both sides' reputation. It should be recorded in a written agreement that states precisely what is waived and what is received. A patient should not sign a general release before the true extent of the harm is known.
- Claim under the clinic's professional liability insurance: if the clinic holds a policy, settlement may be easier, but your legal relationship remains with the clinic and dentist, not the insurer, and the position is governed by the Civil Code's rules on insurance and the policy terms.
Frequently Asked Questions
Does every complication after dental treatment mean medical error?
No. Treatment has known complications that can occur even when standards are followed, such as pain after extraction, sensitivity after a filling, or failure of some implants to integrate. Liability arises where a departure from accepted practice, negligence or a failure to inform of risks is proved, and that is for expert evidence to determine.
Is a dentist bound to achieve a result or only to take care?
In principle only to take care, since biological response is outside his control. In purely technical and cosmetic work, some approaches tighten the obligation toward a result. That is a matter of assessment depending on the agreement, advertising and nature of the work, and we do not treat it as settled in advance.
The wrong tooth was extracted. What should I do?
Have your condition treated at once by another dentist, request your file and radiographs, document the event, and send the clinic a formal notice. This is one of the clearest kinds of error, but compensation depends on what was actually lost and what can be restored. A lawyer can help choose the right route.
Should I claim against the dentist or the clinic?
You can claim against both. The dentist answers for his fault; the clinic answers for its subordinates and for the treatment contract it made. Having more than one debtor helps secure payment, and the court will assess the internal relationship between them.
Is the clinic liable for a mistake by the assistant or radiographer?
In principle yes. A principal answers for its subordinates' acts committed in or because of their duties, and the clinic also answers for safety, sterilisation and equipment duties. See our article on liability for the acts of others, linked above.
The dentist never explained the risks. Is that enough for compensation?
A failure of informed consent can be a fault of its own, but compensation requires proven damage and a causal link. The judge will weigh how far the missing explanation affected your decision, particularly for non-urgent work such as implants and cosmetic dentistry.
The clinic refuses to give me my radiographs and file. Can I compel it?
You can demand them in writing, complain administratively, and ask the court to order the clinic to produce documents during the case. Unjustified refusal can be treated as a presumption. Begin with a formal notice that proves your request and their refusal.
Do I need another dentist's report before suing?
The law does not require one to file the case, but it is very useful for documenting the condition, estimating correction costs and framing the expert's questions. The court treats it as a document in the case, not as binding judicial expertise.
Is a complaint to the health authority enough to get compensation?
No. An administrative complaint leads to professional and regulatory accountability and does not itself award compensation. Compensation is sought by a civil action or a civil claim before the criminal court. A technical finding from the authority may support the case as a secondary document.
When is a criminal complaint appropriate for a dental error?
When the harm is serious or permanent, or involves clear negligence, falsified records or unlicensed practice. Criminal characterisation is governed by the Penal Code (Law No. 16 of 1960) and procedure by Law No. 17 of 1960, and a civil claim may be joined before the criminal court.
Can I recover for non-material harm such as a disfigured smile?
Compensation for non-material harm is available for pain, embarrassment and disfigurement, assessed by the judge according to the circumstances and the expert's report. There is no fixed formula. See our article on non-material damage.
Does signing a consent form stop me from holding the dentist accountable?
No. Consent to treatment is not a waiver of accountability for fault. It covers ordinary risks that were actually explained, not negligence or departure from accepted practice, and a clause excluding liability for gross fault is generally not protected by law.
Does my health insurer have a role if the clinic is in its network?
Insurance may cover the cost of treatment, but liability for the medical error remains with the dentist and clinic. If the insurer refuses to cover corrective treatment, see our article on rejected health insurance claims and how to object.
Can I post my bad experience on social media?
Be careful. Voicing a legitimate opinion is one thing; accusing a clinic of what you cannot prove, or using abusive language, can expose you to liability for defamation. Keep the legal route as your foundation, and see our article on negative reviews.
Conclusion
Pain after dental treatment is not proof of error, and success is not a condition for the dentist to escape liability. The decisive question is the dentist's conduct measured against accepted professional standards, what he told the patient and what consent he obtained, and what he recorded in the file and showed on the radiographs. Anyone seeking redress should start with the file and the radiographs, because a medical claim is built on paper, images and expertise rather than on impression.
A clinic cannot hide behind its dentist, nor a dentist behind the clinic. Each answers according to its relationship with the patient, and the injured person benefits from having more than one debtor. The route should be chosen by weighing the harm, the cost and the goal: an administrative complaint to correct practices, a civil claim for compensation, and a criminal complaint where the gravity of the harm calls for it.
For the reader who has not suffered harm, the advice is preventive: ask about the licences of the clinic and the dentist, obtain a written treatment plan and cost estimate, read a consent form before signing it, and keep a copy of your radiographs. These simple steps protect you before a dispute and strengthen your position if one arises.
Legal Notice
This article provides general legal information about Kuwaiti law. It is not legal advice and does not create a relationship between the reader and the firm. The rules described are subject to legislative change and to judicial application to the facts of each case, and the article does not replace a study of the documents, the clinical file and the expert's report.
If you have suffered a dental error, the team at Yumnaak Law Firm can study your file and radiographs, identify those responsible, draft the notice, complaint and claim, and follow the expertise through to judgment. Reach us through the contact page or book an appointment to review your case.
