OMS “Soft Sells” Risks of TMJ Surgery for A Locked Open Mandible
Marc Leffler, DDS, Esq.
April 24, 2026
Reading time: 7 minutes

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.
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.
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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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