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Not Every Patient Can Have Every Procedure

Case Study

Marc Leffler, DDS, Esq.
June 2025

Reading time: 8 minutes

Dental Equipment laying on cart inside dental office before surgery.

Background Facts

A 57-year-old, post-menopausal woman presented to her regular restorative dentist, Dr. E, whom she had seen for a number of years, and in whom she had trust and confidence. She had lost her 4 upper incisors in a bicycle accident some 5-7 years prior, but was no longer cosmetically satisfied with the removable partial denture she had been wearing, despite the fact that she had been functioning quite well with it. She had seen television commercials touting the benefits of dental implants to allow for the replacement of missing teeth, and she was struck by the degree to which cosmetics could be improved in situations much like hers.

On her updated health history form, she noted that her only medical issues were related to laboratory outcomes, which demonstrated a moderately elevated serum calcium level, and a bone density study about 3 years prior to the current visit which revealed widespread osteopenia with focal areas of osteoporosis. As a result, she had been on a regular oral regimen of a bisphosphonate, prescribed by her primary care physician, since shortly after the diagnoses of osteopenia and osteoporosis were made.

After briefly discussing the patient’s medical history with her, Dr. E stated that he was not concerned with her bone condition or the medical treatment for it, especially because the last monthly oral dose had been taken 20 days earlier, and because she had suffered no associated problems during her 2 ½ years of taking the medication. A surgical appointment was scheduled for 3 days later, when the patient was able to schedule some time off from work.

On the day of surgery, Ms. P was handed a consent form by a dental assistant, and asked to read it, after which she was to sign it. The patient had some questions regarding the written risks, but the assistant assured her that this form was “just for the lawyers”, so she shouldn’t be concerned; the assistant added that Dr. E has been placing implants for a long time and is excellent at what he does, so all of his patients do well and there was nothing to worry about. The patient signed the form before the doctor came into the room, and nothing was said about it or its contents after he arrived. A nitrous oxide/oxygen mixture was given through a nasal mask, followed by local anesthesia, and 4 carefully chosen implants were surgically placed in the sites that teeth 7, 8, 9, and 10 had occupied, without the need for any bone grafting, all under copious irrigation and attention to textbook-like detail, after which the site was sutured. The patient’s partial denture was relieved of pressure points on the underlying gingiva, and reinserted. Ms. P was discharged home, with prescriptions for antibiotics (for one week) and analgesics, and appointed to return in a week for suture removal.

At that post-op visit, the patient complained of continuous, low-grade discomfort and tenderness. Dr. E examined the area when he removed the sutures, and he noticed small shards of bone being ejected from the entire upper anterior region, which he removed, followed by irrigation. Ms. P was discharged and advised to return in 4 months for preparation for implant uncovering, or sooner if any problems developed or she had any concerns. Two weeks later, she returned with continuing symptoms, and an increasing number of bony spicules were noted and removed, so the site was again irrigated, with a refill prescription given for antibiotics. This was followed by weekly visits, each time with increasing pain, which was repeatedly treated with the same process of irrigating and removal of small bone fragments. Approximately 3 months after the implant placement, Dr. E took a radiograph for the first time post-operatively, a panoramic film, and noted areas of what looked to be bony sequestra and poorly defined radiolucencies. Unsure of what he was seeing, Dr. E referred the patient to an oral surgeon, who, that same day, took several specimens of bone from under a small flap, and sent them for pathology; a diagnosis of “osteomyelitis vs. osteonecrosis” was returned.

Given the patient’s bisphosphonate history, the oral surgeon concluded that Ms. P had developed bisphosphonate-related osteonecrosis of the jaw (BRONJ), and planned a hospital admission for coordination with an infectious diseases specialist. After admission and concurrence by the medical specialist as to the likely BRONJ diagnosis, IV antibiotics were begun, and the oral surgeon then brought the patient to the operating room for open exploration and thorough debridement of the anterior maxilla. The amount of necrotic bone that had developed over the relatively short time was substantial, so the surgeon aggressively excised the necrotic bone, which extended to close to the nasal floor; all 4 implants were removed with the bone, as were both maxillary canine teeth. Ultimately, with no prosthodontic device in place for the next 4+ months, and with repeated regimens of antibiotics and antimicrobial rinses, the site healed, but with bony and soft tissue voids which were clearly apparent. Ms. P was eventually restored with a new removable partial denture which had a far worse cosmetic appearance and less functional ability, to include a hissing sound during speech, than her initial presenting appliance.

Legal Action

After Ms. P’s retained attorney obtained the dental and hospital records, and had an expert review them, a lawsuit was instituted against Dr. E, alleging negligence and lack of informed consent. The major claims of negligence were improper patient selection, the failure to consider and protect against the well-known effects of bisphosphonates, the failure to coordinate care with the patient’s primary care physician, and the failure to timely diagnose and act on the bony destructive process post-operatively, thereby leading to the loss of bone and teeth to the point that she could no longer adequately function and that a prominent area of her facial appearance was cosmetically unacceptable.

Case Defense Steps

Defense counsel obtained an expert who was a board-certified oral surgeon with much experience placing implants. The expert was critical of the approach taken by Dr. E, most particularly regarding selecting a patient for implants who, because of using a bisphosphonate, was at a high risk for BRONJ. Furthermore, while prescribing antibiotics was considered appropriate, delaying the first taking of a radiograph for 3 months, especially in the face of ongoing problems, and not referring to an oral surgeon early in the complication phase, were viewed by the expert as outside of the standard of care. Finally, the expert was critical of the fact that, prior to agreeing to perform this elective surgical procedure on this patient, Dr. E should have recognized the significance of the patient’s medication regimen and involved the patient’s primary care physician in the decision-making process by obtaining medical clearance.

In the lead-up to trial, counsel for the plaintiff and defendant engaged in a Court-ordered settlement conference, which led to an understanding regarding an appropriate settlement value, but subject to the agreement of Dr. E, whose dental malpractice policy allowed him the option of refusing a settlement in favor of going to trial. Only upon Dr. E’s agreement to settle were those terms accepted, thereby ending the case.

Takeaways

The concept of obtaining medical clearance from a patient’s physician is a judgment determination, but it ought to be considered when a patient presents with medical conditions, medication regimens, and/or social habits which the practitioner is either concerned about or unfamiliar with. If a dentist does consult with a physician, best practices dictate that the substance of the interaction be documented, preferably with a writing directly from the physician consultant, but minimally with a detailed, contemporaneous chart entry; in the event of subsequent litigation based upon a medical issue, such documentation will provide defense counsel with strong evidence of the dentist having taken appropriate steps. Patient selection criteria, based upon every patient parameter available, are paramount to a successful result and a satisfied patient. Here, the patient’s bisphosphonate regimen was an important, even critical, factor in that selection process; not every patient can have every procedure.

It is not the purpose of this case study to advise as to what treatments are appropriate, as that is left to the practitioner’s judgment, but certain concepts – such as developing differential diagnoses when problems arise, ongoing determinations as to when to use radiographs, and when to make referrals – are best considered thoroughly with all patient interactions.

When patients present for any cosmetic concern, dentists should recognize that cosmetics are subjective in nature, and might be viewed differently by patients and dentists, so there is an increased risk of patient dissatisfaction – or claimed dissatisfaction – when procedures are performed primarily for esthetic reasons, as compared with those performed purely for functional improvement.

When obtaining a patient’s informed consent, dentists should understand that this is not satisfied simply by receiving a signed piece of paper, regardless of how much detail that form contains; consent is a give-and-take process between doctor and patient, in language and terms understood by the patient, in which the patient is advised of the benefits of, alternatives to, and the foreseeable risks associated with the planned procedure and its viable alternatives. The process must be specific to the procedure and to the individual patient, taking into account that patient’s medical, surgical, and social history; when practitioners discuss risks not included on pre-printed forms, those should be documented in the chart. Obtaining informed consent is generally not delegable to a person other than the practitioner about to perform the procedure, although in some limited situations, a similarly trained practitioner who knows the case-specific facts may stand in for that purpose, but a dental assistant or other non-professional staff member is incapable of playing that role, as this case clearly demonstrates.

In a similar vein, it is all too common for non-professional office staff to render opinions, give advice, or otherwise comment upon treatment-related issues. Practitioners must realize that they are liable for any and all consequences which may arise from the actions/inactions of their staff members, so staff training is necessary to make the members aware that they must not provide any such information or recommendations to patients, other than for entirely administrative purposes. This concepts holds, as well, for telephone interactions between the patient and office staff, when the practitioner is rarely present and when patients frequently ask questions about their care or condition; such inquiries must be directed to the practitioner. As this case demonstrates, a dentist’s specifically stated grant of approval to a non-dentist to handle the obtaining of informed consent, or any other procedure not directly allowable under state law, does not make it permissible, and further, sets the dentist up for liability for actions by staff.

Finally, it is impossible to know what will ultimately lead to case resolutions, but when insurance carriers retain defense counsel who are experienced and aware of all available approaches, dentists and other professionals are best protected. And when practitioners’ liability policies allow them to decide whether or not to settle, they control their own destinies.

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 real-life case study, dentists will see how a billing dispute and incomplete informed consent process escalated into a malpractice lawsuit. Learn why clear communication about treatment risks, accurate coding practices, and thoughtful handling of patient concerns are essential to reducing liability and protecting patient trust.

Key concepts

Dentist sued after a billing dispute and nerve injury
How informed consent gaps can increase malpractice risk
Why accurate coding and patient communication matter

Background facts

For Dr. A, extracting teeth was an everyday part of practice, as was virtually the entire scope of dentistry. In addition to postdoctoral training, she had been performing these procedures for years in a region of the state with no oral surgeons within a 2–3-hour drive. She was a participating provider in several dental insurance plans that were popular among her patients.

One such patient, P, was an 18-year-old high school senior who presented for an annual recall visit, with a new complaint of periodic pain associated with the lower right third molar. Despite P being of majority, his mother accompanied him into the treatment room to see Dr. A. Following a clinical examination, a panoramic film was taken and viewed by Dr. A. Tooth #32 was erupted, had incomplete apex formation, but was still in close radiographic proximity to the inferior alveolar canal. Dr. A assessed the pain to be a function of difficulty in cleansing the area, with inflamed gingivae as a result. She suggested, while pointing to the panoramic, extraction, which she said, "shouldn't be too hard,” although it carried a "slight risk of a nerve injury which could leave P's lower lip and chin numb, and rarely be permanent." This conversation was documented with specificity in the chart. P had heard about impacted wisdom teeth from a few friends, so he asked whether his tooth was impacted. Dr. A replied, "No, it is not.” P wanted to think about it, so he left the office with a sample of an oral rinse and instructions as to how to improve his oral hygiene. A month later, the symptoms persisted, so P's mother called the office to schedule an extraction appointment.

Before having local anesthetic injected, P was handed a paper entitled "consent form,” which he and his mother "briefly read.” The document contained a list of potential risks, including a general statement about possible "loss of sensation.” P signed the document prior to the extraction going forward. Dr. A worked on the tooth for well over an hour, much longer than she had anticipated, cutting out pieces of tooth and trimming away bone using round and fissure burs. P could taste blood, particularly at one point, which caused Dr. A to pack gauze in his mouth. The following day, P awoke to find the right half of his lower lip and chin numb, which he did not find surprising, given the warning beforehand, but so was the right half of his tongue, which was a surprise. At post-op visits, Dr. A assured and re-assured P and his mother that feeling would return to normal — it never did.

Separately, P received a bill for Dr. A's services from her billing office, seeking a co-pay for "#32 7240.” The amount was significant, despite Dr. A's advertised plan participation, so P's mother questioned the office manager as to what all of this meant. The response was that, according to the insurance plan's rules, Dr. A was permitted to charge that amount for fully impacted wisdom teeth, as this was. P's mother replied that Dr. A had specifically advised her and her son that the tooth was not impacted, no less fully so. The office manager spoke with Dr. A, but the answer came back that, because Dr. A had to work so long to remove the tooth, she was not willing to make any adjustments.

P's mother contacted the insurance carrier to explain the situation. The carrier requested a pre-treatment radiograph from Dr. A, based upon which the in-house reviewers concluded that the tooth was not appropriately coded as 7240, but rather should have been 7210 (surgical extraction of erupted tooth). Under the plan provisions, Dr. A was therefore not permitted to charge any co-pay but instead accept the plan payment in full. When the insurer notified Dr. A of that, with a copy sent to P's mother (whose employer provided the coverage), Dr. A was steadfast that she was entitled to the amount billed and would send P to collection if she was not paid. P's mother did pay the claimed balance, but the carrier dropped Dr. A from the panel due to what it referenced as "upcoding resulting in excessive billing.”

Legal action

P had slowly been adapting to the lip, chin, and tongue numbness, but his mother remained upset about the principle of billing her son and threatening a collection action, so she contacted an attorney. The attorney was not very familiar with dentistry in any legal regard, so he reached out to his own dentist, with a copy of Dr. A's records that he had been provided, to help him interpret what was going on. The dentist agreed with the insurance company's position that the extraction had been inappropriately upcoded, but perhaps more importantly that it was clear from the records that, while P had been warned of the possibility of an inferior alveolar nerve injury and its effects, he had not been told anything about tongue numbness, which came from an injury to an entirely different nerve branch and which should have been avoided if proper technique had been employed.

The attorney initiated a lawsuit against Dr. A, asserting lack of informed consent relating to the lingual nerve injury, dental malpractice regarding the causing of the lingual nerve injury, and breach of contract leading to the improperly billed (and collected) co-pay amount. The defense attorneys assigned to Dr. A by her malpractice carrier reviewed the case with their client and advised her that they would seek expert opinion as to the substance of the informed consent and malpractice claims, but that she would not be covered for the breach of contract claim, per a clearly stated policy exclusion.

The expert retained by Dr. A's counsel was provisionally willing to present a defense as to the malpractice claim regarding her having negligently caused the tongue numbness, but that position would need to be re-evaluated following her deposition testimony. However, there was no evidence in the record to demonstrate that she had provided any warning of a potential lingual nerve injury and its impacts. The defense expert did not see a pathway to successfully defend the claim of lack of informed consent. A second expert reviewer reached the same conclusion.

Dr. A's attorneys had a candid discussion with her. Even if the malpractice claim could likely be effectively defended, the lack of informed consent claim could not. So, P would be entitled to a monetary award regardless of which, or both, of the claims went P's way in the eyes of a jury. Dr. A agreed to have her attorneys seek to settle the claim, to be paid by the malpractice carrier, which they did. As part of the settlement agreement, Dr. A would personally return to P the amount his mother paid her for the co-pay.

Takeaways

While it is impossible to know whether P would have sought an attorney at some point to file an action on his behalf based upon the substantive dental issues, it is quite clear that the issue which drove the initial attorney involvement was the billed, and eventually paid, co-pay amount. There is then perhaps a bit of irony that the money that Dr. A was unwilling to waive directly led to a settled malpractice claim, but that insisted-upon co-pay not only started the legal action steps but was also ultimately paid by Dr. A out-of-pocket. Dr. A made the decision to demand a disputed amount of money, and that decision likely cost her far more — particularly with her being dropped from a panel — than had she acquiesced in the first place. It is not our role here to advise dentists as to whether they should fervently go after unpaid, disputed fees. Instead, we demonstrate a situation where doing so ended up causing more harm than benefit. Food for thought.

Experience teaches that lay jurors might not always understand scientific, dental facts, sometimes making their determinations counter to what experts and attorneys anticipate. On the other hand, issues relating to overbilling or upcoding are relatively straightforward for plaintiffs' attorneys to explain to jurors, and simple for them to understand. At times, jurors might put all else aside and render a verdict for a plaintiff if they do not see the defendant-dentist as having been honest. Such is a version of jury nullification, with the jury members substituting what they deem critical in place of what the law says is critical. Taking subjectivity of that type out of the hands of juries increases a defendant's chances for success.

This case study exemplifies how the trigger for a patient seeking legal counsel might have nothing at all to do with the quality of dentistry. Yes, dentistry is complex, and there is an ever-present unpredictability factor, so ideal results do not happen with every procedure, with every patient. What need not be complex are matters over which dentists and their staff members have full control — such matters can virtually always be taken out of the equation as to what starts the legal ball rolling.

Finally, we briefly address the coding of procedures for billing purposes. The ADA and perhaps other associations provide numerical codes for dental procedures, which state the procedure performed and which often serve as the basis for which payment is sought and made. With few exceptions — such as 7241 for full impactions with unusual surgical complications, or time under sedation/general anesthesia, as examples — procedure codes do not take into account the length of time required to complete or the difficulty in doing so. To upcode to a procedure not actually performed, for a higher fee, is to invite a host of problems, including the initiation of a malpractice lawsuit or Dental Board complaint.

Summary of takeaways

A signed consent form alone is not enough — patients should also be verbally informed of all risks, benefits and alternatives associated with a procedure, by way of back and forth conversations, and those discussions should be thoroughly documented.
Billing disputes and inaccurate procedure coding can damage patient trust and may become the catalyst for malpractice claims.
Upcoding procedures can result in payer disputes, loss of network participation, regulatory concerns, and increased legal exposure.

Dentists will learn how sedation missteps can lead to a malpractice claim and Dental Board action. This case highlights why understanding state sedation requirements, assessing patient risk, and preparing for emergencies are essential to managing malpractice risk.

Key concepts

Dentist sued after unpermitted sedation led to a medical emergency
Dental Board action tied to state sedation permit requirements
Why patient risk factors matter before providing sedation

Underlying facts

K was a 47-year-old man, who has been an asthmatic for all of his life. His medication regimen has changed over the years — to include, at times, corticosteroids, biologics, and rescue inhalers. At the time of his subject series of visits with Dr. F, K's long-time general dentist, he reported taking daily steroids and an occasional need for the inhaler, with asthmatic flare-ups not uncommon. K had skipped seeing any dentist for some time, so Dr. F found 3 carious lesions in the left posterior for which endodontic care was indicated, and he advised his patient of exactly that.

For some reason, K explained, he had developed a fear of dentistry, the reason he had stayed away, and the prospect of root canal therapy, in 3 teeth, was daunting. Dr. F told his patient that, while he does not often do so, he would prescribe an oral sedative to be taken shortly before each of the 3 procedures, as an adjunct to nitrous oxide/oxygen ("laughing gas") given through a nasal hood. K agreed to try that approach, and filled the prescription given to him.

Just before being driven to the dental office on a relatively humid day by his young adult daughter, K took 2 of the tablets — rather than one, as prescribed — and arrived in a surprisingly relaxed state. When Dr. F peeked into the waiting room, he asked "did you take the medication?" "Yes I did." K was soon seated by Dr. F's assistant, who placed the hood and dialed in N2O/O2 at 5 liters per minute and a 70%/30% ratio, all of which was Dr. F's custom.

When Dr. F entered the treatment room, he briefly made small talk with K before delivering a mandibular block and infiltration. K winced and became visibly upset, which led to his beginning to show difficulty in air exchange. Dr. F asked the assistant for a pulse oximeter, but it could not be located. Dr. F switched the gas flow to 100% oxygen, but he had no means of delivering it with positive pressure. K deteriorated, with his lips becoming bluish, and his respiratory efforts becoming more and more futile. The receptionist heard the commotion, came to see what was happening, and called 911; EMS came 17 minutes later, by which time K was breathing poorly and minimally conscious. With telephone instructions from an emergency department physician, a paramedic started an IV line and injected a muscle relaxant while an EMT squeezed oxygen through an Ambu bag, slowly raising the O2 saturation from 73% to 92%.

K was transported to the hospital, where he was admitted for 4 days, undergoing a complete pulmonology work-up and medication regimen modification. K was left with large ambulance and hospital bills, for which no health insurance was in place, owing to his being new to his current job, which he could not attend for another 2 weeks, unpaid.

Legal steps taken

Intimidated by the amount of money he owed, K sought legal advice, and was counseled that suing Dr. F might cover his expenses and lost earnings, as well as money to compensate him for his physical and emotional injuries. The newly retained attorney obtained copies of the records from Dr. F, the ambulance, and the hospital, and sent them to dental and internal medicine experts for their input. The dental expert knew that dentists in that State were required to obtain a permit for providing sedation at any level, including orally, with predicates to obtaining the permit being (1) an office assessment by 2 dentists from the State Dental Board, to assure that resuscitation equipment and drugs were available and functional, as well as (2) basic life support certification for the dentist and at least 1 present staff member (or ACLS for the dentist for deeper levels of sedation), and (3) doctoral or post-doctoral training in sedation techniques. Dr. F was not aware of any of these requirements, so, as the dental expert found on publicly available platforms, Dr. F had never applied for a permit; in fact, neither he nor any staff member was current with BLS certification.

In addition to filing a dental malpractice lawsuit against Dr. F, K, with his lawyer's help, filed a Dental Board complaint. In his response to the complaint, one of the arguments posed by the attorneys provided to Dr. F by his malpractice insurer was that Dr. F had not intended to do more than simply "take the edge off,” and it was K's own action, by taking a higher medication dose than prescribed, that led to a deeper level of sedation and the apparent laryngospasm that flowed from that. The Board was unmoved: the statute set out strict requirements, for any level of sedation, with the dose provided by Dr. F falling into that category; Dr. F had violated that statute. The Board levied monetary sanctions and a stayed 6-month suspension from practice.

The Board's findings and actions, which would likely make their way to a trial jury in that jurisdiction, made the malpractice defense a steep uphill battle. A settlement followed, compensating K for both economic (medical costs, lost income) and non-economic ("pain and suffering") damages.

Takeaways

The old adage that "ignorance of the law is no excuse" clearly applies here. While dentists are not expected to have the degree of understanding of laws that lawyers do, they are expected to know and abide by the parameters of their State's Dental Practice Act; there is simply no getting around that. With this is mind, had the case proceeded to trial, it is foreseeable to believe that a legal principle known as negligence per se would have come into play: in basic terms, when a person violates a statute which is intended to protect the public safety, and that violation causes an injury, there is essentially a presumption of negligence/malpractice. Here, Dr. F's failure to obtain the needed permit is quite readily argued to have caused K's injuries, based upon the facts that his training was inadequate and his resuscitative inventory was lacking, leading directly to the inability to protect K's safety. Legally, negligence per se provides what amounts to a short cut for plaintiffs, yet one which is avoidable.

Readers might wonder whether K's own improper action, namely taking twice the prescribed dose, could have alleviated Dr. F's liability, or at least a portion of it. The answer is maybe. When a settlement is made, as it was here, all of the potential legal arguments go away. But if the litigation had proceeded, and depending upon the State and locality involved, a jury might have been able to consider K's impropriety and reduce, or even possibly eliminate, Dr. F's liability. Taking that approach at trial is viewed by some lawyers as risky because jurors might see it as trying to blame the victim; but that does not mean that such a tactic does not ever occur, because it most certainly does. It ends up as a judgment call on trial strategy, left for lawyers to discuss with their clients, with a typical risk-benefit analysis playing a major role.

An issue underlying the facts in this case is the existing medical condition of K, as of the time of the procedure. He was a known, disclosed asthmatic, whose various medication regimens signaled a significant level of disease. Most practitioners would likely agree that such patients pose a higher risk profile when it comes to sedation, to any degree, such that a host of factors need to be considered beyond the "usual.” In terms of strict ASA classification, K would be viewed — based solely on his asthma condition — as a Class II (if the asthma was judged to be well controlled with management of it on an as-needed basis) or Class III (if the asthma was viewed as not being well controlled, with frequent episodes and constant treatment required) patient. Of course, there is subjectivity involved with assigning patients into these groups, but objective assessments ought to be used to guide the conclusion.

Finally, we address a defense that Dr. F raised with the Board, namely the level of sedation that was intended for K, rather than the one achieved. In some States, that difference might be determinative, but in the State of Dr. F's practice, that difference was irrelevant. Either way, it is a universal given that dose X of drug Y will necessarily produce different sedative results in different patients, even if nominally but potentially largely so; dentists are prudent to realize that sedative end points are unpredictable, that patients might become more deeply sedated than intended, that patients might have side effects generally associated with the deeper level, and that the dentist must be appropriately trained and otherwise prepared to handle even low likelihood, but severe, risk manifestations. There is often little room for error when a patient's state of consciousness is altered.

Summary of takeaways

Dentists are expected to know and follow their state’s sedation requirements.
Patient-specific risk factors can increase sedation-related liability.
Sedation outcomes can be unpredictable, so emergency readiness is essential.

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In this real-life case study, dentists will learn how a swallowed crown can quickly become a patient safety event and lead to a malpractice claim. See why prevention, timely follow-up, and patient communication are essential aspects of reducing risk.

Key Concepts

Swallowed crown led to malpractice lawsuit
Preventive steps to reduce swallow or aspiration risk
Compassionate communication and risk management

Background facts

E, a 64-year-old man who was markedly obese with type II diabetes and atrial fibrillation, presented for the insertion visit of a PFM crown on his upper right second molar, tooth #2. Getting to that point had been far from easy for both E and Dr. M, owing to limited opening ability and an excess of facial soft tissue. Preparation for the crown and impressioning had each taken a full visit for the very same reasons. Suffice it to say, as Dr. M later did, there was very little room to work in E's mouth. No local anesthesia was given for this visit; as Dr. M placed the crown for what would be the final try-in, his finger incidentally made contact with E's soft palate, causing him to gag and unexpectedly move forcefully, which then caused the crown to slip out of Dr. M's wet gloved hand, and out of sight. Dr. M, an experienced practitioner nearing the end of his career, who liked to work "solo", called an assistant into the room to suction the oropharynx of the supine patient, with the hope of finding the crown tucked into a tissue fold. The crown was not found.

Dr. M explained that he would need to take another impression because the crown had "slipped behind the mouth"; he did just that over the next hour. As E was being dismissed, Dr. M said that the crown will work its way down the intestines, to be voided in the stool: E should inspect his stool over the following few days, to the extent reasonable, but he shouldn't overly worry about it. E left the office, expecting to return in 10 days for the new crown to be inserted.

On the fourth day after this visit, E noticed that his stool was blood-tinged, so he called Dr. M to learn whether that might be related to the dropped crown, but Dr. M did not think so. He did, though, advise E to speak with his primary care physician if things worsened or even remained the same. The stool got redder toward the end of the week, so, that Sunday, he appeared at an urgent care center, where, upon hearing about the dental crown incident, the physician ordered an abdominal series of radiographs, which located the crown, appearing to be stuck in place at a sharp bend in E's colon. Arrangements were made for E to have a colonoscopy the following morning at a local hospital, where E was admitted for the night.

Under deep sedation, a gastroenterologist removed the crown from the colon by using a grabbing instrument. When the crown was examined after removal, the gastroenterologist reasoned that the metal edge of the crown that projected below the porcelain portion — the margin — had likely dug its way just a small amount into a fold in the wall of the colon, preventing it from moving beyond that point to be expelled. Because of E's underlying medical conditions, he was kept in the hospital until the next day, at which time he was discharged without any problems or complications.

Legal action

Although E was willing to let the situation end without any further action, his wife was particularly annoyed about the hospital, anesthesiology, and gastroenterology fees, which were not covered by E's high-deductible medical insurance policy, as well as what she viewed as Dr. M's lack of caring, as demonstrated by his having never followed up with E about what had occurred.

An attorney was brought on board to sue Dr. M for dental malpractice, so that the out-of-pocket costs and a sum for pain and suffering could be recovered. The attorney's first step was to contact Dr. M's malpractice carrier, specifically its regional claims consultant. When all records were obtained and reviewed, the claims consultant explained to Dr. M that a supportive defense expert was unable to be located, even by a local defense attorney, so that a liability defense could not be mounted, other than by way of Dr. M acting as his own liability expert.

Dr. M realized that this was far from an ideal approach, so he agreed to attempts to settle the case, which was accomplished for a relatively modest amount of money.

Takeaways

Under the best of circumstances, maintaining a grip on small objects placed in the mouth, using wet gloves, is fraught with the risk of losing control of the object — here a crown. When treatment is performed in the back of the mouth, that risk is magnified, and when the patient's anatomy makes the working space smaller than usual, the risk further increases. Adding to that, the gravitational considerations of a supine (rather than upright) patient maximize the likelihood of a dropped object being swallowed or aspirated. Each of these "weak points" can generally be mitigated: oropharyngeal packs are placed to try to physically block the backward and downward path, particularly when rubber dam cannot be used; working with a watchful, suctioning chairside assistant provides extra hands, extra eyes and extra protective devices; and seating a patient in as upright a position as possible can mean the difference between a dropped object falling harmlessly into the floor of mouth where it is easily retrievable, and a swallow/aspiration event.

Any and every time that an object is placed into the mouth, or one becomes free-floating in the mouth, and cannot be accounted for, it should be assumed to have been swallowed or aspirated unless proven otherwise, generally by radiographic evidence either way. As a general rule, the sooner the patient is able to be placed into the care of medical colleagues for locating and treating, the less the ramifications will be. That does not necessarily mean that dental procedures must always be stopped in their tracks, but it does mean that, as soon as it is safe for the patient to move on for definitive care, the better off they will usually be. Because physicians are often less than fully aware of dental materials and instruments, it is helpful to them if a photo example, or actual example, is provided to the patient to pass on to their physicians, so that they know exactly what they are looking to locate.

Two considerations which quite often lead patients to seek legal advice are unexpected and unreimbursed costs, and a perception that their dentist did not truly care about them, particularly when things did not go as planned. The former is unpredictable, and it ended up here as one of the main drivers toward legal action, but the latter can almost always be avoided. Prompt and repeated follow-up communication, by the dentist, rather than an office staff member, with patients; and demonstrating a genuine interest in patients, as people and not only "receivers of dentistry"; can go a long way toward heading off involvement of lawyers.

Not all patients and not all similar procedures are the same, whether because of underlying medical issues, patient anatomy, patient size, patient attitudes, or limited mobility. So, a one-size-fits-all approach is rarely, if ever, a helpful treatment mindset to adopt.

Finally, we address the circumstance here, where no liability expert could be found to help to defend Dr. M. While not very common in the defense of dental malpractice claims, it does occasionally pop up. In most, if not all, jurisdictions, dentists are legally permitted to serve as their own experts. But in the eyes of jurors, that is often a difficult sell. In this situation, as well as all other litigation-related issues, dentists are counseled by their defense attorneys, whether the news is easy to hear, or not.

Summary of takeaways:

Take an objective, measured approach to patient communication
Avoid criticizing prior care without full context
Maintain thorough documentation to support care decisions

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Key concepts

Dentist sued after a billing dispute and nerve injury
How informed consent gaps can increase malpractice risk
Why accurate coding and patient communication matter

Background facts

Legal action

Takeaways

Summary of takeaways

A signed consent form alone is not enough — patients should also be verbally informed of all risks, benefits and alternatives associated with a procedure, by way of back and forth conversations, and those discussions should be thoroughly documented.
Billing disputes and inaccurate procedure coding can damage patient trust and may become the catalyst for malpractice claims.
Upcoding procedures can result in payer disputes, loss of network participation, regulatory concerns, and increased legal exposure.

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Billing Dispute and Consent Issues Lead to Malpractice Lawsuit

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How a Dropped Crown Led to a Malpractice Lawsuit

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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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