Practice More Safely // Risk Tips // OMS Extracts the Wrong Tooth and Faces Litigation

OMS Extracts the Wrong Tooth and Faces Litigation

July 28, 2025

Reading time: 8 minutes

OMS has extracted a sick tooth from patient in dental office. Focus on stainless steel dental tongs or pliers and extracted lower tooth in it. OMS

We turn slightly away from our usual format, based upon some ongoing inquiries from our insureds regarding the litigation process, and explore what that process entails from an overview perspective at MedPro.

While each case situation is treated uniquely due to the individual circumstances, our goal here is to provide a general sense of the start-to-finish approach to the process, with the understanding that not every potential scenario will be addressed here. A set of background facts is provided to set the stage for the potential litigation pathways. These facts involve an oral and maxillofacial surgeon as the defendant, but they could just as readily involve other types of dentists.

Key Concepts

General overview of litigation procedure
Understanding pure consent policy provision
Importance of collaboration in litigation process

Background Facts

T was an 18-year-old male, who recently consulted an orthodontist with esthetic dental concerns, mostly due to an asymmetry of the maxillary teeth that resulted from a congenitally missing upper left bicuspid that skewed the dental midline to his left. The orthodontist concluded that, given the mildly increased overjet as well, T would best be treated with the extraction of the upper right first bicuspid, after which that space would be closed orthodontically with a rightward set of forces that would also set back the upper anterior teeth.

To carry out the pre-orthodontic treatment, the orthodontist’s receptionist, at the orthodontist’s request, called a local OMS’s “front desk,” and asked that T’s “tooth 5 on the upper right” be extracted. The OMS’s staff member noted the request, exactly as stated, in the schedule for the upcoming appointment. When T presented, the OMS was confused as to whether the orthodontist wanted “tooth #5” or the “upper right 5” to be removed, so she asked her office manager to call the orthodontist’s office to clear that up. In response, the orthodontist’s office manager looked at the chart notes and transmitted back that the OMS should remove “the upper right 5 tooth.” Although still somewhat confused, given dentistry’s multiple systems of numerically identifying teeth, the OMS nevertheless proceeded to obtain informed consent by explaining that “a tooth” would be extracted, and having T sign a “consent form” which listed “tooth extraction” as the procedure, and then uneventfully extracting the upper right second bicuspid (UR5 a/k/a #4). When the patient returned to the orthodontist several weeks later and was examined, the orthodontist called the OMS and said, “I wanted the first bicuspid removed, not the second, and that mistake will make the outcome less desirable in the end.”

MedPro’s Involvement

Immediately upon learning of the problem from the orthodontist, the OMS (Dr. K), telephone-contacted her malpractice carrier, MedPro, and spoke with the claims intake representative to advise of the situation. Because Dr. K had not, as of that time, been informed by T or a lawyer on his behalf that there was an intention to sue, the situation was noted in Dr. K’s policy file as an incident, with no further steps taken as of that time.

Less than 3 months later, Dr. K received a letter from T’s attorney, stating an intention to file an action in dental malpractice, unless T was paid a stated sum of money. Dr. K again contacted MedPro and forwarded the attorney’s letter, along with a copy of her records for T. Now, the matter was a claim, and assigned to the claims consultant who manages claims within the state where the events occurred. The claims consultant telephoned Dr. K, and the two had a detailed conversation about the dental events and the potential procedures that might follow. Dr. K made it very clear to the claims consultant that she believed that the communication errors emanated from the orthodontist’s office, and that she was of the opinion that she had “done nothing wrong.” Therefore, she wished to exercise her pure-consent malpractice policy provision and withhold consent to settle “under any circumstances.” The claims consultant explained to Dr. K that, while her right to exercise would be fully respected by MedPro, that meant that, unless a case, if formally started in court, were voluntarily withdrawn by T or dismissed by a court, it would proceed to trial. Dr. K said that she understood and was fervent in her decision.

The claims consultant spoke with T’s lawyer and advised that no settlement offer was forthcoming. Shortly thereafter, a process server appeared at Dr. K’s office and served her with a copy of the initiatory documents, often called a Summons and Complaint, in which T claimed that Dr. K was negligent, thereby causing injury to T, and also asserting a claim of lack of informed consent. Those documents were forwarded to the claims consultant, who discussed with Dr. K that defense counsel would be assigned to represent her as the case moved forward. Dr. K was now the defendant. Upon receiving the case to defend, Dr. K’s new attorney, who was very experienced in defending dental malpractice actions, met with Dr. K to review the entirety of her chart for T, discuss all that took place in terms of the inter-office communications, and explain all that would follow.

After that meeting, the defense lawyer timely served on T’s attorney a document known as an Answer, in which all claims of malpractice/wrongdoing/lack of informed consent were denied. Dr. K’s defense counsel also served a number of information-seeking documents, to begin the litigation phase of Discovery, during which each party would provide documents and other requested information, all overseen by a judge. The Discovery phase provides each party with the opportunity to learn their adversary’s litigation approach, by having them share demanded information for the ultimate purpose of eliminating any “ambush at trial.” Perhaps the most consequential portion of Discovery is the taking of depositions of all parties, and sometimes of experts as well. Depositions are under-oath question-and-answer sessions during which the person being deposed provides spoken responses to relevant questions put to them by opposing counsel, and which are then transcribed by stenographers. Because deposition responses can be read to trial juries with the same force and effect as though they were stated in court, pre-deposition preparation by counsel of all witnesses – including the defendant dentist – is critical.

Completion of discovery is reported to the judge, at which time a trial date is assigned, with some judges bringing counsel (and sometimes the parties too) together to discuss settlement prospects. If expert reports and theories have not yet been exchanged between the parties, this is the time to do so. Motions seeking dismissal, if made, are generally submitted now. This time, known as the pre-trial phase, lends itself to further discussions between the parties and their attorneys, as well as the insurance carrier, to again consider whether a settlement is to be a consideration. Dr. K continues to be able to exercise her pure-consent provision, thereby moving the case to trial. Defendant dentists often make determinations regarding whether to seek a potential settlement based upon such issues as their assessment of treatment events with all positions now in the open, their weighing of the competing expert opinions, and personal concerns (time out of office for trial, reputational worries, stress, etc.), all in conjunction with their attorneys. MedPro tracks all litigation steps along the way, often seeking and considering dental, medical, and legal viewpoints from in-house or other sources. It is important to note that insured dentists with pure-consent policies can properly withhold consent to a settlement, but if they agree to seek a settlement, the ultimate decisions as to whether to settle and for what amount then lie exclusively with MedPro, as the insurer.

Trial starts with the jury selection process – voir dire – and then proceeds into what is traditionally viewed as the trial proper. At times, certain motions to exclude evidence are presented to the presiding judge, to be addressed outside of the jury’s presence, and then decided. First, the plaintiff presents his case – documentary and other tangible evidence, fact witnesses, expert witnesses – with the defense attorney able to cross-examine all witnesses who appear and testify on behalf of the plaintiff. At the conclusion of “plaintiff’s case,” defense attorneys usually seek dismissal of the entire case, claiming that the plaintiff, who has the burden of proof, failed to meet that burden to the satisfaction of the court. If granted, the case ends. But if denied, as it statistically most commonly is, the defendant’s attorneys present the “defense case,” offering their own evidence and witnesses, the most important of which is the defense expert dentist, to counter the claims that the defendant dentist was negligent, thereby causing injury to the plaintiff.

It is then time for the jury to do its job, after lawyers’ summations are heard and its members are instructed by the judge on the law applicable to the case. But even while the jurors deliberate, a settlement agreement between the parties can still be reached, presuming here that this defendant, Dr. K, waives her consent option, up until the time that the jury renders its collective decision as a verdict. A verdict for the plaintiff is almost always accompanied with an amount of money for compensation, but a verdict for the defendant means that the plaintiff has not proven that he has been injured at the negligent hand of the defendant dentist, and therefore gets no money. Post-trial motions are often presented to the judge by the losing side, either orally or in writing, with reversal of the jury’s determinations fairly uncommon. And then, the option for appeal hangs in the balance, asking a higher court to correct the trial judge’s improper trial decisions and/or the jury’s verdict, occasionally but not frequently resulting in a new trial from scratch or an alteration of dollar amount.

Final Points

To reiterate, it is more than possible, and in fact realistic, that the exact steps as discussed here will be at least slightly different in every case. But this general “big picture” is emblematic of how cases progress, from incident to claim to suit to discovery and to trial. MedPro takes the position that sued dentists, who are as knowledgeable as possible about the litigation process they are about to enter, are better advocates for themselves, assist their attorneys more effectively, and endure less stress until they emerge on the other side.

Finally, we conclude with a couple of points, the first of which was alluded to earlier: while dentists and specialists insured by MedPro may choose to withhold their consent to settle such that it is a trial jury who makes the ultimate determinations, waiving that consent does not force MedPro to settle on their behalf, but rather only permits it, should MedPro determine that settlement is the best approach. The entire litigation process – whether it concludes with a dismissal, a settlement, or a jury verdict – is a collaborative one, between the insured dentist, counsel, experts, and MedPro. MedPro handles more dental malpractice claims than any other carrier and closes 80% of those claims without payment. For the claims that do make it to trial, our insureds win 95% of the time.

Note that this case presentation includes circumstances from several different closed cases, in order to demonstrate certain legal and risk management principles, and that identifying facts and personal characteristics were modified to protect identities. The content within is not the original work of MedPro Group but has been published with consent of the author. Nothing contained in this article should be construed as legal, medical, or dental advice. Because the facts applicable to your situation may vary, or the laws applicable in your jurisdiction may differ, please contact your personal or business attorney or other professional advisors if you have any questions related to your legal or medical obligations or rights, state or federal laws, contract interpretation, or other legal questions.

In this case study, a treatment for recurrent mandibular subluxation led to unexpected complications and a malpractice claim centered on informed consent. The case highlights the importance of thoroughly discussing realistic risks before oral and maxillofacial surgery.

Key Concepts

Why successful outcomes do not eliminate malpractice risk
Benefits of maintaining empathy as an OMS
How patient expectations can influence malpractice outcomes

Background Facts

P, a healthy, petite 31-year-old elementary school teacher, presented to Dr. V, the oral and maxillofacial surgeon who had extracted her third molars when she was in college. Within the past 6 months, P had made 5 trips to a local hospital ER due to her mouth locking in an open position (subluxation) after widely yawning (twice) and after taking large bites into food (three times). Each time, the emergency physician was able to readily "relocate" her jaw into her normal occlusion, except that the most recent episode required that she be given an intravenous sedative for the treatment to be accomplished. That last episode led the treating doctor to suggest that she see an oral surgeon to find out whether anything could be done to eliminate the problem.

After hearing the history, Dr. V performed a clinical evaluation, but the problem could not be replicated. A radiographic study revealed that P's left coronoid process was very pronounced and elongated, compared to both the right side and to what Dr. V had seen on many radiographic views of TMJs in other patients in general. Due to the specific anatomic arrangement, Dr. V explained to his patient, using a skull to demonstrate, that when she opened wide, the condylar head would sometimes slip ahead of the coronoid process – likely due to some soft tissue laxity – but it was unable to work itself back into the fossa because the coronoid process was too long to get past.

Dr. V believed that open joint surgery would be the best approach, with two potential options: (1) "tighten" the soft tissues so that the condyle would be less likely to slip forward; or (2) reduce the height of the coronoid process – by way of a procedure known as a coronoidectomy – so that if the jaw did slip forward, it would easily be able to retreat into the fossa. When asked his opinion, Dr. V suggested the coronoidectomy because it would be a lasting solution over time, regardless of how lax the intra-joint soft tissues might become.

P was inclined to proceed that way but wanted to think about it after discussing the risks and concerns more deeply. Dr. V and P did just that. He initially talked about the surgical entry. While an intraoral approach was preferred for a variety of reasons, most significantly a reduced risk of nerve injury, he was concerned about limited access because of her very small stature. So, he would plan to enter extraorally, just in front of the ear. When P followed up regarding the concern for nerves, Dr. V simply stated that there were a number of nerves in the area which are often stretched in the surgical process but generally recover quickly and that, "rarely," the effects can be more longstanding if the nerve itself is "cut into to any significant extent." Dr. V gave P a copy of a "TMJ surgery consent form," which discussed the nerve risks almost verbatim, as well as various other concerns such as infection, delayed healing, scarring, bleeding and pain.

After a month of consideration, P called Dr. V to tell him that she wanted to go forward. He asked her to come to the office to discuss scheduling and other surgery details. P brought her signed consent form with her, and surgery was planned for three weeks later.

P had her procedure done under general anesthesia, in an ambulatory surgery unit. Dr. V removed what he described as a large portion of the coronoid process, and flattened the entire anterior part of the complex, so that the condyle was able to move freely. At her first post-operative office appointment, P's clearly visible complaint was that she could not close her left eye; Dr. V explained that "this is what we went over beforehand", but P became upset because she had not expected such a significant and unaesthetic result, based upon Dr. V's very casual and downplayed description prior to surgery. Dr. V told P to wait for a while, because all was likely to return to normal. It never did.

Legal Action

Although P's TMJ subluxation was no longer a problem, she was emotionally distressed about how her students stared at her eye and about how her social life was adversely impacted, to say nothing of the need for her to use eye drops daily and having a constant sense of dryness. She worked with a mental health therapist and then retained an attorney to look into and potentially file a lawsuit against Dr. V, the latter of which did come to pass.

As the case progressed through discovery, both P and Dr. V provided deposition testimony. Questions to both of them addressed their respective views of the informed consent process. Beyond that, Dr. V discussed his surgical technique, which P's attorney would later admit to the trial jury was "textbook." During trial, even P's expert oral surgeon could not point to any meaningful criticisms of Dr. V's performing of the surgery. But the issue of informed consent was another story altogether.

The focus of trial regarding the claim of lack of informed consent honed in on the specific language used by Dr. V in his back-and-forth discussion with P, and on the signed consent form itself. P told the jury that she would never have gone through this surgery had Dr. V fully disclosed the risk of what actually happened to her. She called it a "soft sell," meaning that, while the subject of some vague nerve injury was raised, the details of it were not, and the likelihood of it happening was made to sound minimal, almost as a throwaway.

Shortly after the jury was sent to deliberate, its members sent a note to the judge that they had determined the issue of liability (which would later be revealed as no negligence on the part of Dr. V), but they wanted to look at the signed consent form and hear read-backs of the testimony from P and Dr. V regarding the risks explained. The jury ultimately concluded that Dr. V did not adequately warn P of the realistic risk of a motor nerve injury, nor the ramifications if it did happen. An award was given to compensate P for her emotional injuries – as corroborated by her therapist – as well as the physical injuries in and around her eye.

Takeaways

As this case study illustrates, a plaintiff will be successful and able to receive a monetary award by proving, to a jury's satisfaction, any one (or more) of the stated claims. Here, even though the jury found that Dr. V had met the standard of care with regard to surgical technique, his patient was still successful in her case of malpractice against him, due to his failure to adequately inform P before she consented to go forward with surgery. Informed consent is best not viewed as a mere afterthought, but rather an integral aspect of care with at least legal importance equal to that of the procedure. It warrants thoroughness and transparency.

Far from unusual is for plaintiffs to make case claims that they were negatively impacted to the extent that their mental health suffered. Those allegations are often minimized or even dismissed by judges, for lack of support. But here, P's assertions in that regard were backed up by a mental health therapist. That same concept holds true for all claims in malpractice cases. A plaintiff must present actual support, often times in the way of expert corroboration, to even be allowed to be considered by juries, to say nothing about getting compensation from those juries.

An issue raised in this case was that of the various treatment options available to oral surgeons. Here, Dr. V thoroughly considered those options and reasoned his way to a conclusion that guided his entire approach. While his decision was clearly a judgment call, a solid risk-protective approach taken by Dr. V in this regard was that he undertook a weighing process founded in scientific bases. Judgment calls happen regularly in practice, so they can be expected to be questioned in litigation scenarios. But Monday-morning quarterbacking is best overcome by having had a thoughtful process from the start, so the choice can be justified to a jury.

Finally, as was later described, Dr. V's comment to P when she presented post-op with a facial palsy – that "this is what we went over beforehand" – was not received well by his patient. Whether Dr. V demonstrated a sense of empathy at the time or not cannot be definitively concluded because of its subjective nature, but the underlying point is significant: patients expect their doctors to be caring, interested, and empathetic. Retrospective assessments, to the extent they are reliable, show that patients who feel cared-for, closely followed, and not cast aside by their doctors are less likely to sue them, with all else being equal. Patient care is why everyone signed on to be a part of this profession.

Summary of Takeaways

Even when TMJ surgery is performed appropriately, inadequate informed consent can result in malpractice liability if realistic risks are not clearly communicated.
Minimizing or vaguely describing potential complications can lead to unmet patient expectations.
OMS can reduce risk by maintaining clear, empathetic communication before and after surgery.

In this case study, oral and maxillofacial surgeons will learn how facial cosmetic injections performed under a dental license led to a Dental Board complaint and formal investigation. These events highlight the need for clarity around scope-of-practice boundaries and training requirements.

Key Concepts

Risk of performing procedures without experience
How patient dissatisfaction can lead to Board complaints
Understanding State Dental Practice Acts

Background Facts

K, a healthy 32-year-old woman, had recently seen several of her friends and work colleagues receiving facial injections to enhance lip fullness and eliminate lines and wrinkles on their foreheads. She thought about undergoing procedures of those types, but she was very fearful of doctors in general. There was one exception to that: the oral surgeon who had removed her third molars some years back and had pleasantly surprised her with the ease of the procedure and its after-effects. K wondered whether Dr. N did those kinds of cosmetic treatments and was happy to learn from his office staff that he did. She made an appointment for a consultation.

Dr. N, an oral and maxillofacial surgeon, practiced under a dental license. At their office meeting, Dr. N explained to K that he would be able to inject dermal filler into her lips to "make them more plump" and inject one of the commonly used neuromuscular blocking agents to eliminate forehead lines. Dr. N explicitly pointed out that the beneficial effects would be temporary, on the order of months, or perhaps even a year or more. He also explained the traditional risks of both types of procedures. K's only concern was financial, but Dr. N's office worked out a payment plan to make that aspect of the picture easier for her.

Nearly a month after the consultation, K presented to Dr. N for the planned cosmetic treatments. The office procedures went without complication, with K discharged home with her accompanying friend a few hours later. When Dr. N called K the next day, she told him that she was swollen and red at all injection sites. She was assured that this was all normal. At her one-week post-treatment visit, she expressed her displeasure with the asymmetry of both of her lips. She was again assured that this was normal and that all would "equalize" shortly. In fact, the asymmetries did not resolve. Even approaching 18 months, the "lopsidedness" of the lips remained.

K met with a plastic surgeon to assess any corrective options she might have. The plastic surgeon had no criticisms regarding the forehead, but was quite critical of the lip results, stating that the amounts and locations of filler placement had to have been inappropriate. However, no surgical or other solutions were offered, absent simply waiting a few more months until the effects would almost certainly be gone.

Although it did come to pass that the effects were soon to dissipate, K had endured what she viewed as a particularly stressful period, during which her social life suffered, social media comments about her appearance regularly popped, and even work officemates murmured about. Despite her requests, K was given no credit on her remaining balance, so she eventually paid Dr. N in full.

Legal Action

Two attorneys refused K's potential malpractice case against Dr. N, both saying that the effects ended up being temporary, and explaining to K that they doubted a jury's sympathy regarding entirely cosmetic procedures, particularly during the difficult economic times in their location.

The latter issue resonated with K, in that she continued to harbor resentment about Dr. N's unwillingness to reduce the amount she owed him. She wondered aloud to one of the attorneys as to any other remedies that might be available and was told that she had the option of filing a Dental Board complaint against Dr. N. Wanting to at least "do something," she went down that path. The complaint itself merely set forth what treatments Dr. N had performed, asserting that they were done poorly. The Board sent a letter-request for copies of all records from Dr. N.

Dr. N reported the communication from the Board to his malpractice carrier, which assigned him counsel to assist in defending against the complaint. Counsel provided the Board with all that they requested and accompanied Dr. N to hearings before the members. The Board asked Dr. N detailed questions, about both the lip and forehead procedures, focusing on his experience and training, which had been rather limited.

The Board's findings against Dr. N were scathing, citing his training as inadequate – as it included only academic coursework – and his experience as having "not even worked with a skilled practitioner until he could develop expertise." The Board accepted Dr. N's explanation that the lip procedures had a dentally-based therapeutic purpose, namely reducing lip incompetence so as to improve such oral functions as eating, drinking and speaking. However, Dr. N was unable to provide an analogous basis for the forehead injections he had performed. As such, the Board concluded that his treatment had fallen outside of the permissible scope of practicing dentistry, per the State's Dental Practice Act, in that it was not performed to restore or maintain dental health (which the Board pointed out might have been the case had the patient had muscular-based conditions such as bruxism, TMD, or trismus, which was not the situation here).

Dr. N was sanctioned by the Board by way of fines, a suspension from practice (which was stayed), and a mandate to complete continuing education on jurisprudence in dental practice.

Takeaways

The various States have different and often unique provisions which guide and limit the practice of dentistry, and scope of practice is among those provisions. While oral surgeons are sometimes granted additional allowances as to increased scope of practice, that is not always the case. Therefore, prior to undertaking procedures which might go outside of the "traditional," it is wise to consult the State's Dental Practice Act and potentially speak with the authorities directly. This is particularly appropriate when an oral surgeon has offices on both sides of State borders, where the rules might be entirely different. As this case study demonstrates, the penalties for violations can be severe.

Patients who are dissatisfied with aspects of their care have multiple potential remedies at their disposals, even when, as here, the patient does not directly benefit from an outcome against the provider. Perhaps ironically, it was not the aspect of care by Dr. N that K was displeased about – her lips – that led to the Board's penalties. Dental Boards are free to delve through the entire patient record, despite a complaint about a limited issue, and levy penalties for any violation they might see, whether that was a patient concern or not.

As cliché as it might sound, angry patients are more likely to initiate lawsuits and Board complaints, with all else being equal regarding treatment results. In this case study, K was clearly unhappy with how the esthetics turned out, but it was Dr. N's unwillingness to adjust his fee that led her to take action. An argument can be made, although speculative, that K acted in a retributive way. Whether true or not, that is not an issue that the Board would likely consider. While we do not comment upon the charging or waiving of fees, this concept speaks to the importance of maintaining cordiality and professionalism at every step, to reduce the likelihood of patient complaints of all types.

The plastic surgeon who evaluated K after her treatment with Dr. N engaged in what we refer to as "jousting," which in simple terms is throwing another practitioner under the bus. Jousting is a significant driver of malpractice claims, so its implications cannot be overstated. When subsequent practitioners joust, they often fail to consider, or even know about, what the prior treating doctor faced regarding presenting conditions, patient aspirations, and patient-directed limitations, yet their statements nevertheless loom large to patients, and eventually to trial juries. The ethics of jousting are subjective and not an issue to be discussed here, but it is inescapable that many malpractice suits get off the ground simply because of it.

Stepping away from implications regarding malpractice suits and Board actions, but into the realm of direct patient care, practitioners best serve their patients when performing procedures for which they have been adequately and properly trained, didactically and clinically, so patients can obtain the best results available. That might be seen as something of a catch-22, in that all practitioners constantly learn, expand, and improve, which could very reasonably be hindered by a concern about venturing into new areas. This is a personal judgment call, with sometimes opposing issues needing to be weighed and acted upon. In the end, though, if a case ends up in litigation, and the defendant-doctor is asked questions at a deposition, it is fair game for plaintiff's counsel to explore all of these issues so that they can ultimately be considered by a trial jury.

Finally, we have intentionally omitted the names of the products used to treat K, to avoid any potential inferences about particular ones.

Summary of Takeaways

Performing cosmetic procedures without clear alignment with the state’s scope of practice rules can expose OMS to significant Board scrutiny and disciplinary action.
Even when patient harm is temporary, dissatisfaction can escalate into complaints that trigger broad regulatory review beyond the original concern.
OMS can reduce risk by maintaining professionalism in patient interactions and by confirming their training, experience, and state’s rules before offering cosmetic care.

Note that this case presentation includes circumstances from several different closed cases, in order to demonstrate certain legal and risk management principles, and that identifying facts and personal characteristics were modified to protect identities. The content within is not the original work of MedPro Group but has been published with consent of the author. Nothing contained inthis article should be construed as legal, medical, or dental advice. Because the facts applicable to your situation may vary, or the laws applicable in your jurisdiction may differ, please contact your personal or business attorney or other professional advisors if you have any questions related to your legal or medical obligations or rights, state or federal laws, contract interpretation, or other legal questions.

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In this case study, oral and maxillofacial surgeons (OMS) will examine how a documentation error and failure to clinically verify a biopsy site led to wrong site oncologic surgery and malpractice claims. The case highlights the importance of obtaining clinical clarity before procedures.

Key Concepts

Preventing wrong-site surgery through pre-procedure precautions
Vicarious liability for documentation errors
Pure consent to settle clauses in malpractice policies

Background Facts

T, a 71-year-old man, was a retired carpenter, with a history of well-controlled hypertension and chronic, episodic sinusitis, and having smoked at various times in his life, as much as a pack of cigarettes a day. He visited his dentist, Dr. D, at irregular intervals and never wanted to establish a big-picture treatment plan. At his most recent visit, Dr. D noted a course, irregular white area at the buccal mucogingival junction around teeth #29-31. Not feeling comfortable making a provisional diagnosis, Dr. D referred T to a periodontist, Dr. O, to evaluate the area and treat as needed. Dr. O performed an incisional biopsy of the area and sent it to an oral pathologist, Dr. H, for histopathological assessment. The lesion was read out provisionally as atypical epithelial proliferation, but Dr. H asked for a larger sample to be able to make a more definitive diagnosis.

Dr. O took a second specimen from an immediately adjacent site. Due to a clerical error, Dr. O entered into the chart that this specimen had been taken from the "lower left buccal gingiva," with her dental assistant repeating that error on the pathology request form that was forwarded to Dr. H with the tissue. After microscopically examining the specimen, Dr. H diagnosed it definitively. The report from Dr. H to Dr. O read "squamous cell carcinoma, moderately-to-well differentiated, lower left buccal gingiva," the latter aspect having been copied by Dr. H, exactly from the requisition provided by Dr. O's office with the most recent submission.

Upon seeing the words "squamous cell carcinoma," Dr. O immediately referred T to a double-degree oral and maxillofacial surgeon, Dr. M, who had head-and-neck surgery fellowship training, for evaluation and treatment, giving T a copy of the biopsy report to take with him. Dr. M reviewed Dr. H's report, examined T, noting a small lesion on the buccal aspect of teeth #30-31, and explained to T that he would need a PET scan to determine whether there had been any spread. Presuming no such spread, Dr. M advised T that the lesion could be successfully treated by surgery alone, specifically a marginal mandibulectomy and a limited neck dissection. The lesion had not spread, per the PET scan and other modalities, so the stated plan would go forward. T agreed and surgery was scheduled at a regional medical center.

On the day of surgery, T waited in a pre-surgery room, where his medical history was reviewed and identification was checked. A consent form stating the procedure to be "removal of portion of lower jaw, and neck dissection" was signed by T and witnessed by a nurse. Dr. M said a brief "hello" to T before changing into scrubs and entering the operating room, where T was already on the table. Dr. M asked the anesthesiologist to proceed.

Dr. M had taped Dr. H's biopsy report to the OR wall, read it again, and prepared to make an extraoral left submandibular incision, through which he would both remove a mandibular segment and perform the limited neck dissection. Technically, the procedure went forward uneventfully, with T then transferred to the post-anesthesia care unit. T's wife was brought in to see her husband while Dr. M was still there, dictating his operative note. She was aghast to see that surgery had been performed on T's left side, when she knew that the cancer was on the right. When she confronted Dr. M on the spot, he said, "here's the biopsy report, read it for yourself."

Shortly after T's initial surgical recovery, another surgeon treated T, this time correctly operating on the right side of T's face and neck. T suffered emotionally, to the extent that he sought and obtained psychological counseling, but he was never able to comfortably eat or drink, or otherwise normally function orally again. He required and received reconstruction bilaterally, but he always found it to be very compromised and esthetically unacceptable.

Legal Action

T retained a seasoned attorney, who collected all records and obtained opinions from a general dentist (like Dr. D), a periodontist (like Dr. O), an oral pathologist (like Dr. H), and an OMS (like Dr. M). The general dentist saw no liability on Dr. D's part, as he had immediately made an appropriate referral. The oral pathologist similarly found no liability as to Dr. H, reasoning that oral pathologists in biopsy situations do not assess the patient clinically. They simply diagnose what they see microscopically, which he did accurately, and report the findings regarding the site that was conveyed on the requisition it had come from.

The conclusions as to Drs. O and M were quite the different. The expert periodontist stated his view of Dr. O's negligence succinctly: Dr. O's recording error which incorrectly stated the location of the lesion to be examined was inexcusable, and it served to set the entire cascade of events into action, resulting in wrong-side surgery having been done. The oral surgery expert was deeply critical of Dr. M, claiming that he failed to clinically correlate the location findings on a biopsy report with the patient's actual condition, and then compounded the situation by being unwilling to address his error, thereby violating his duties, both surgically and ethically. In short, said this expert, Dr. M failed to do the most basic tasks, namely double checking the intended surgical site before performing irreversible, life-altering treatments.

Substantial settlement amounts were paid to T on behalf of both Dr. O and Dr. M. Additionally, Dr. M was sanctioned by his State Board.

Takeaways

Wrong-site treatment, including surgery – whether, as here, relating to the side of the mandible to be removed, or extracting a first bicuspid instead of an orthodontically planned-for second bicuspid, or endodontically treating a healthy lower molar instead of the diseased tooth next to it – has permanent effects, which are virtually always preventable. Pre-procedure techniques can be, and routinely are, employed that will stop this type of error from ever taking place, such as taking a time out for confirmation, marking the side/site of surgery, having two people independently confirm what is to be done, clinically correlating a result document (such as a biopsy report) with an actual finding, and having an open, no-consequences policy that encourages office staff to voice any concerns before a potential untoward event begins. The old "a stitch in time" adage is never more applicable than in pre-procedure risk protection.

One of the most frequent case types now seen in malpractice claims is a practitioner performing treatment where it was not intended to be, and the trend appears to be growing. While the reasons for that are simply theories, a common-sense approach is that such events might well be driven by a focus on the number of patients seen and procedures performed. In reality, the amount of time needed before a procedure to assure correct patient, correct site, correct procedure is nominal in comparison to the amount of time that most procedures take. But even if a practitioner or an office is measurably slowed down to achieve those assurances, obligations to patient safety warrant those delays.

This case highlights the consideration of responding to patients and their family members when results are not as planned or expected, when complications come to pass, or, as here, when errors are immediately obvious. It would not likely have changed the ultimate course of legal events had Dr. M responded to T's wife differently, because the negligence was so clear and significant, but it might have reduced the likelihood of a Board complaint being levied against him. Evidence to support that theory lies with the fact that no Board complaint was filed against Dr. O.

The pathology request form sent to Dr. H with the second specimen taken by Dr. O was completed by Dr. O's dental assistant, who wrote the requisition form. By way of a concept known as vicarious liability, what the dental assistant wrote is the functional equivalent of Dr. O having written it herself. The assistant's error, whether copied from Dr. O's own transcription error or not, becomes Dr. O's error as well. All that is delegated comes back to the delegator, so double-checking of even such a seemingly unimportant task is critical for liability protection and for patient protection.

As a background fact, both Dr. O and Dr. M had professional liability ("dental malpractice") policies with "pure consent-to-settle" provisions, meaning that no settlement could have been reached without their agreement to do so. Such a provision means that a practitioner can demand that a lawsuit brought against them be tried in court before a jury, regardless of how strong the evidence of wrongdoing might be. For every case, practitioners are counseled by their attorneys regarding the pros and cons of settlement versus trial, with the potential implications of both fully set out on the table.

Finally, we note that, simply for purposes of brevity, some details, which were not relevant to the risk management issues discussed, were omitted. This is particularly the case regarding the pre-surgical work-up phase of care, secondary criticisms addressed by the experts, and the documentary and testimonial evidence before the State Board. Their absence should not be construed as necessary but missing pieces.

Summary of Takeaways

Wrong site surgery remains a leading and largely preventable source of malpractice claims.
OMS are accountable for errors made by delegated staff, even when those errors were unintentional.
Simple confirmation practices before irreversible procedures can prevent patient harm and legal consequences.

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Key Concepts

Why successful outcomes do not eliminate malpractice risk
Benefits of maintaining empathy as an OMS
How patient expectations can influence malpractice outcomes

Background Facts

Legal Action

Takeaways

Summary of Takeaways

Even when TMJ surgery is performed appropriately, inadequate informed consent can result in malpractice liability if realistic risks are not clearly communicated.
Minimizing or vaguely describing potential complications can lead to unmet patient expectations.
OMS can reduce risk by maintaining clear, empathetic communication before and after surgery.

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Additional Risk Tips content

OMS “Soft Sells” Risks of TMJ Surgery for A Locked Open Mandible

In this case study, a patient files a malpractice claim tied to informed consent, despite a successful surgery. Learn how communication affects risk.

Oral Surgeon Navigates the Gray Areas of Cosmetic Care

In this case study, a cosmetic facial treatment leads to a Board complaint against an OMS. Read the case to learn how scope of practice rules affect OMS.

Failure to Verify Leads to Irreversible Surgical Error

In this case study, wrong site oral surgery leads to malpractice claims. Read the article to learn how pre-procedure safeguards can prevent devastating errors.

This document does not constitute legal or medical advice and should not be construed as rules or establishing a standard of care. Because the facts applicable to your situation may vary, or the laws applicable in your jurisdiction may differ, please contact your attorney or other professional advisors if you have any questions related to your legal or medical obligations or rights, state or federal laws, contract interpretation, or other legal questions.

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