Dentist’s Choice of Antibiotics Leads to Adverse Outcome for Patient

Marc Leffler, DDS, Esq.
March 21, 2025

Reading time: 7 minutes

Young woman at the dentist, complaining about a dental issue.

Dentists must make thoughtful decisions about which antibiotics to prescribe for patients. In this case study, a patient sees an endodontist for root canal therapy. After the treatment, the patient is hospitalized for severe abdominal pain following treatment with various antibiotics. Later, the patient sues the endodontist for negligence.

Key Concepts

  • Implications of prescribing certain medications
  • Roles and responsibilities of dental staff 
  • Disagreement between malpractice defense experts

Background Facts

S was a 43-year-old healthy woman who presented to her general dentist, Dr. A, with a 2-day history of increasing pain and buccal swelling adjacent to her upper left first molar tooth. This was her first visit to the dentist since the COVID pandemic, having shied away due to fears based upon online blogs that she often read. Following clinical and radiographic examination, Dr. A determined that tooth #14 had decay which had invaded the pulp, thereby causing an infection. Dr. A explained the dental options available to S, namely endodontic therapy (RCT), followed by a post and crown, or extraction followed by various potential restorative choices. S did not want to lose the tooth, so she opted for RCT.

Dr. A was fully supportive of that approach, but he did not perform molar endodontics as part of his practice, so he referred S to Dr. Y, a local endodontist with whom Dr. A had frequently worked. S was seen by Dr. Y the same day, and the root canal was performed. Purulence was discharged immediately upon Dr. Y having entered the pulp chamber. Dr. Y explained to S that she thought antibiotics were indicated, given the symptoms present, so she provided a prescription for Metronidazole, with instructions for S to return in a week.

On the third post-treatment day, S called the office and told the receptionist that, despite her taking the antibiotics, she had a fever and her swelling was persistent. The receptionist responded, without discussing the issue with Dr. Y, that this was not a concern because “this often happens.” S was told to continue what she was doing and come to the office for her previously scheduled visit. At that visit, now a week after treatment, Dr. Y found continued and possibly increased swelling, so she changed the antibiotic to Clindamycin, and advised hot compresses and warm saline rinses. S complied and her oral symptoms abated, but she began to have blood-tinged loose stool 5 days later. She called the office again, and this time, she spoke directly with Dr. Y, who said that, because her oral condition was improving, she should continue the antibiotics for the remaining 5 days, telling S that intestinal problems frequently occur with antibiotics.  

S followed that advice, but had severe abdominal pain 3 days after the prior conversation with Dr. Y, so she presented to a local hospital’s emergency department. Based upon a complete clinical and radiographic work-up by an emergency physician and a gastroenterologist, S was diagnosed with a perforated colon due to pseudomembranous colitis (PMC). In conjunction with being given medications to counter the overgrowth of Clostridium difficile, she underwent a partial colectomy, with the colostomy reversed some weeks later, after a protracted hospital stay.

While still in the recovery phase, S retained an attorney. The attorney investigated a potential claim with the assistance of experts in the fields of endodontics and gastroenterology, who reviewed all of the records. A dental malpractice claim was filed against Dr. Y and her office entity, citing several assertions of negligent treatment, which had been set forth by the experts: (1) Dr. Y’s initial antibiotic choice – Metronidazole – was an improper and inadequate choice, “because it only covers anaerobes, and the vast majority of dental infections have an aerobic component,” (2) Dr. Y’s use of Clindamycin, while likely providing coverage for the bacteria causing S’s infection, did not come with a warning from Dr. Y of its potential severe gastrointestinal side effects, (3) the office receptionist’s transmittal of medical advice without discussing the patient’s concerns with Dr. Y was not only inaccurate, but it reflected poor office policy by vesting in non-dental staff members the authority to offer guidance that was well beyond the knowledge base of an office administrator, (4) Dr. Y’s “soft sell” regarding intestinal complications that can accompany antibiotic use revealed an inadequate acknowledgement of the potential severity of such complications and the need to quickly act, likely by referring her to a medical colleague, and (5) the sole causes of the PMC and the surgery undertaken as a result were Dr. Y’s failure to recognize signs of Clindamycin’s well known side effect and act upon it before it went as far as it did.

Discovery and Case Resolution

After Dr. Y was assigned counsel by her malpractice insurance carrier, attempts to retain defense experts to oppose the opinions of S’s experts took place. The potential endodontic defense expert was unable to refute the claims of negligence, and, in fact, essentially agreed with them. However, the potential defense gastroenterology expert was of the opinion that the timeline to support the plaintiff’s causation claim was lacking because, while PMC can begin to show symptoms within a couple of days of the start of an antibiotic such as Clindamycin, that more commonly does not occur until a week or so later. This picture would have left defense counsel with what is often referred to as a “causation defense,” meaning that because a plaintiff must prove negligence causing injury, the case would have to be upended with an expert argument that, although there were several negligent actions on Dr. Y’s part, those actions were likely not the cause of the PMC. Rather, “something else was at play.”

With the approval of the insurance carrier, defense counsel consulted with a second gastroenterologist to test the causation theory approach of the previously retained gastroenterology expert. This physician did not believe that the suggested model would be successful because it was not in line with the majority of current thinking.

After discussing all of these issues with Dr. Y, she agreed to have her attorney try to settle the case, and with the input of a mediator and approval of the carrier, that came to pass.

Takeaways

A dental practitioner’s decision as to whether antibiotics should be prescribed in a given situation, and if so, which ones to prescribe, lies totally within the judgment of that practitioner, who is in the best position to make determinations based upon clinical conditions. We do not comment on those professional judgments, other than to point out that most jurisdictions’ malpractice laws do not view “judgment calls” any differently than any treatment determinations or actions. In other words, “judgment calls” should align with the standard of care – what a reasonable practitioner would or would not do under similar circumstances. What we do speak to here is the concept that all decisions relating to treatment ought to be well thought out and able to be justified according to accepted science-based approaches to practice, rather than what is colloquially referred to as “junk science.”

When it comes to prescribing medications, or treating a patient on medications with which the dentist is not particularly familiar, or planning/performing treatment upon a patient with medical abnormalities, the burden to familiarize with regard to all of those situations rests upon that treating dentist. That is not necessarily to say that such a dentist must develop a true level of expertise when it comes to all medications or all medical conditions, but it is to say that the dentist needs to have a reasonable understanding of the implications presented, and that the dentist might, therefore, need to consult authoritative sources or engage with the patient’s treating physicians. If a patient is injured as a result of a treating dentist’s lack of knowledge on medical or pharmacological matters, that dentist could well be held liable for those injuries.

It should come as no surprise that experts playing a role in malpractice litigation often legitimately hold differing, even opposing, opinions on issues critical to the lawsuit. When that occurs prior to trial, as it did here, experienced defense counsel will thoroughly evaluate its significance to try to determine whether those divergent views will realistically be able to be overcome, or whether it is likely to pose a concerning result when placed before a trial jury. The value of proficient defense attorneys cannot be overstated, both during the discovery phase of litigation and at trial.

Finally, we echo the lesson put forth by the plaintiff’s endodontics expert as to the duties of the often numerous people carrying out widespread roles within a dental practice. There is no doubt that non-professionals in dental offices – receptionists, insurance filers, secretaries, office managers – are critical to the efficient running of dental practices. The limits of their roles need to be clearly established by the dentists who oversee the day-to-day management, and spell them out to all employees. Most basic is that only dentists address dental (and sometimes medical) issues with and regarding patients, leaving the administrative tasks to administrative, non-clinical personnel. When non-dentists offer clinical advice, and harmful effects result from that advice, the legal principle of vicarious liability – errors on the parts of employees are viewed as though the employer erred – takes hold. Whether the employer is a dentist or an entity, the ultimate responsibility falls upon that “higher-up.”

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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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Sometimes criticizing a patient’s prior dental work can expose dentists to malpractice risk. Understand where the line lies between appropriate patient education and “jousting,” and how communication choices, documentation, and professionalism can influence legal outcomes.

Key Concepts

  • How criticizing prior work can increase malpractice risk
  • Keep communication objective and professional
  • The importance of strong documentation during a claim

Background facts

Dr. Y was a general, restorative dentist who recently moved into a suburban community—with great public schools—to both live and work. The area's dentists were, generally speaking, busy but not bursting at the seams, so Dr. Y realized that it would not be easy for him to establish his practice with so much competition. His approach would be to sign on to as many dental insurance panels as he could, hoping to use that platform as a foundation upon which to build a patient base. It took a couple of years, but his practice grew.

It was not that Dr. Y would "manufacture" dentistry to perform upon new patients where that need did not exist, but he was what other dentists in the neighborhood described behind the scenes as "hyper-critical" in his evaluations of the dentistry that had been done by prior dentists. R had been a long-term resident of the area, having never had dental insurance until her recent job change. She had completed implant-supported bridgework on both arches some 6-8 months ago, which had cost her a significant amount of money, and she was in the midst of a very slow process of getting used to functioning with the prostheses. With her new employer now providing her with dental insurance—a plan which Dr. Y, but not her prior dentist, Dr. K, accepted—she presented to Dr. Y as a new patient.

At the initial visit, Dr. Y took a full mouth series of radiographs and did a thorough clinical examination. When R mentioned that she "just didn't feel comfortable" with the new dentistry in her mouth, Dr. Y told her that he knew why: the abutments and pontics were overbuilt, with inadequate embrasure spaces; some of the margins were open, although slightly; and the overall dental anatomy did not allow for self-cleansing, making it "a set-up for periodontal disease.” Dr. Y suggested that all of the prosthetics be removed and replaced. Even with R's dental insurance contributing a fair amount to the cost of the proposed treatment, she would still have to pay a large amount of money out of pocket and endure a months-long process. R was very upset, to say the least, focusing that displeasure on Dr. K; she had always known that a replacement of Dr. K's work would likely be required down the road, but she did not expect that so soon after it was inserted.

Dr. Y removed the existing bridges, replaced the implant abutments, re-prepared the natural teeth, impressioned and temporized the mouth, and ultimately inserted new upper and lower cases. R was no happier with the new work, but Dr. Y told her that there was only so much he could do with the underlying foundation that Dr. K had "inadequately established,” so R would simply have to adjust. She never fully did.

Legal action

With R continually complaining to family members and friends about how unhappy she was, not only dentally, but also because of the money she had paid both Dr. K and Dr. Y, while exhausting her annual dental insurance benefits so early in the calendar year, she was encouraged to seek out an attorney who might have some solutions for her. R's newly retained attorney obtained the dental records of Drs. K and Y, as well as a narrative from Dr. Y, in which he was quite critical of Dr. K's work product, which was directly responsible for the need to exchange it and for the inability to create a more ideal replacement (due to the underlying damage it/he had caused).

When Dr. K reported the contact from R's attorney to his malpractice carrier, he was provided with defense counsel, who was able to obtain the records and report from Dr. Y. Dr. K was in literal disbelief at what he saw in writing, but he knew that it would be a difficult task, from a dental standpoint, to demonstrate the quality of his work, with it having been removed and replaced. At the same time, he felt bad for R, his patient of many years, whom he believed had been sold an inaccurate story, for the sake of Dr. Y's financial gain.

With Dr. K's counsel functioning as an intermediary at Dr. K's request, an offer was made to refund to R all that she had paid to Dr. K, in order to stave off the prospect of a lawsuit. R, through her attorney, accepted that offer, with the money changing hands once R executed a Release of Liability document.

Takeaways

As healthcare professionals, dentists are ethically obligated to advise patients regarding the conditions of their mouths, including the status of existing dental work. But without having ever stood in the shoes of a prior-treating dentist, and not knowing what challenges and limitations might have been placed upon them, or how the patient took care of themselves dentally after that treatment, blanket criticisms that do not take any of these potential factors into account are known in the malpractice world as "jousting" —not the medieval game involving horses and lances, but with similar effect. Part of professionalism is being able to candidly communicate with patients without denouncing the work of others, absent full knowledge of all contributing factors. Here, while Dr. Y acted appropriately by advising R of his findings—presuming that he did, in fact, find deficiencies and problems—he stepped into the jousting arena by doing so in a manner that made certain presumptions of blameworthy wrongdoing. It is a fine line to walk, and one to be figured out by all practitioners. Jousting, as compared with notifying, is a significant driver of dental malpractice claims; why that practice is as common as it is, perhaps more so than in other professions, is a speculative exercise for consideration elsewhere.

Dr. K's decision to try to resolve R's complaints by offering, and ultimately providing, a refund was a personal one, considering all of the issues involved with defending a protracted dental malpractice case, as compared with taking all of that off of his plate quickly. Refunds are far from uncommon in dental practice; when provided, dentists are wise to protect themselves legally by obtaining a Release of Liability (ROL), signed by the patient, in exchange for the returned money. In essence, a ROL in this context states that the patient is willing to accept a monetary benefit, while relinquishing the right to later sue the dentist regarding the course of conduct that led to that refund. As with all legal documents, ROLs are best prepared and overseen by attorneys, who can assure that the process is carried out in the most appropriate manner, so as to afford the best level of protection. We do note, however, that no ROL will prevent a patient from subsequently making a complaint to a state Dental Board, as the right to report to government entities cannot be given up through a civil process, such as a refund or a settlement. For better or worse, that is the way it is.

Dr. Y's preparation of a narrative for an attorney is an everyday occurrence. In many jurisdictions, attorneys for patient-plaintiffs are required to obtain some sort of statement, whether written or otherwise, from a dentist, in which that dentist states, in terms of varying specificity, that the treating dentist who is being considered as a potential defendant violated the standard of care, thereby leading to damage to the patient. Such statements are opinions, and opinions vary much of the time, but that is how the system works. To add to the difficulties in defending cases like this, particularly involving restorative dentistry, the work that is later claimed to have been deficient will, by definition, have been removed and replaced, so there can be no after-the-fact reviewing of the criticized work by the defendant and/or his/her defense expert. That serves as yet another reason that documentation (including post-placement radiographs, when appropriate) is so important, as it might well be the only "living" evidence of steps taken and rationales for doing so. Time-consuming as it is, documentation is not something to shortcut: that includes dentists writing their own chart entries, rather than having an assistant or other staff member do it for them.

Summary of takeaways:

  • Criticizing prior work without full context can increase malpractice risk.
  • Keep patient communication objective and avoid assigning blame.
  • Thorough documentation is critical for defending care decisions.
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A teen patient’s persistent maxillary pain led to multiple root canal treatments, but the true cause went undiagnosed for months. The case highlights the risks of narrow diagnosis, missed referrals, and how treating a minor can extend malpractice exposure well beyond the expected timeframe.

Key Concepts

  • Malpractice risks associated with missed diagnoses
  • Minors and the statute of limitations
  • The importance of tail coverage

Background facts

Dr. S was a well-experienced dental practitioner who focused on the care of children, although not a pediatric dentist: she found the work challenging, yet rewarding, especially when those children later brought their own children to be treated.  R, age 16, was one such patient, whose father, as a teenager, treated with Dr. S when she was new to practice.  Severe, right maxillary pain, with persistent headaches led R to come to the office, outside of the routine of his usual 6-month recall visits.  By way of evaluating appropriate periapical films of the upper right molars and premolars, as well as a clinical examination with multiple dental testing modalities that demonstrated equivocal findings, Dr. S concluded that the problem was most likely originating with tooth #3 and/or tooth #4, as both had deep MOD restorations placed approximately 3 years prior.

The more likely offending tooth, in the opinion of Dr. S, was the first molar, so, with the approval of R's father, root canal therapy was completed on that tooth, without any apparent complication, and with the finding of a vital pulp.  Nearly a month later, R's symptoms continued as before the endodontic treatment, so, again with the father's agreement, Dr. S completed RCT on tooth #4, also without complication and also with a vital pulp.  Despite both teeth being subsequently restored, R's initial presenting complaints remained, and were even subjectively worse, now approaching 6 months later; additionally, R began to have right-sided sinus congestion.

R's parents arranged for him to see an ENT, who, after performing a limited clinical assessment, sent R for a CT of the sinuses.  The study clearly showed a well-circumscribed, lima-bean-sized mass in the right maxillary sinus, located seemingly entirely deep to the Schneiderian Membrane and just above the maxillary posterior teeth.  Because of its localized appearance, the ENT expressed to R and his parents that the lesion was likely benign, so a plan was developed to perform an exploratory surgical procedure, through a Caldwell-Luc approach, to excise the mass and examine it microscopically.  Surgery at a local hospital went forward under general anesthesia, with the lesion removed and the sinus debrided.  The biopsy report determination was that the lesion was a polyp which was, as anticipated, benign and in need of no further treatment.

Within 2 weeks, R was, for the first time in the better part of a year, free of pain and headaches.  The ENT concluded and stated to his patient and his parents that all of the symptoms were all along not due to any dental problem, but instead the sinus polyp.  It was not until over a year after the RCTs were completed that R's father questioned Dr. S as to why she failed to diagnose "something" abnormal in the sinus, why she failed to consider any source for R's complaints other than teeth, and why she performed root canal therapy on 2 teeth without any objective basis for doing so.  Although she apologized and expressed empathy for all that R had gone through, she was not able to provide any answers to the direct questions posed to her.

Legal action

R's father read online that teeth which have had root canal therapy are more likely to fracture, and therefore be prematurely lost, so he began to consider costs that would likely and unnecessarily need to be borne by R in the future, as well as the emotional distress he would endure if he had to go through multiple dental extractions and their replacements.  He sought out and retained an attorney to act on his son's behalf by suing Dr. S for dental malpractice.

When Dr. S was served with papers that had commenced a lawsuit against her, she was immediately faced with a practical reality that she was aware of but had not realistically considered would arise: she had recently changed malpractice carriers but had not purchased extended reporting coverage – a "tail" – for the first carrier's claims-made policy; because the treatment of R which was at issue took place during the period of the earlier policy, she had no insurance coverage, either for defense or indemnification (payment).  After looking at the legal costs she would have to personally bear as a result, she opted to represent herself – acting pro se – counting on some "unofficial" help from a close friend who was an attorney, although not one who had ever practiced in the professional malpractice arena.

Dr. S learned that the state in which she practiced dentistry had a 1-year statute of limitations period for dental malpractice cases, meaning, as she interpreted it, that no such suit against her could validly go forward if it had been started more than 1 year after the date(s) of the claimed negligent treatment, as this suit had.  She asked her attorney friend what she could do to stop the suit in its tracks because it was not timely begun: her friend said that the mechanism for doing that was to make a motion to the court for dismissal, on that specific basis.  With her friend unwilling to assist her beyond that sole piece of advice, Dr. S thoroughly researched how to place that before the court, realizing that this was her only true hope to be successful in defending the case, acknowledging that she had fallen short in diagnosing the actual problem R had, and instituting incorrect and unneeded treatment.  Dr. S's motion was quickly and decisively opposed by the lawyer for the plaintiffs, R and his father.

The opposition made it clear that Dr. S had relied on only a portion of the law which guided the statute of limitations, ignoring the critical part here, namely that R, as a minor, was entitled to an extension of that time period, such that he was permitted to file his case until 1 year after he reached the age of majority; given that R was well short of age 19, the judge denied Dr. S's motion and allowed the case to move forward.  This left Dr. S with 3 basic options: (1) hire a lawyer to represent/defend her (which she was not willing to do); (2) continue to represent herself through discovery and potentially trial; or (3) try to reach a settlement to end the case. She weighed the costs, likelihood of success, and an unknown amount of money to be paid out if R later prevailed, if she proceeded with her defense, versus taking the bitter pill right then and there, and resolving the case for a sum of money that would be acceptable to all involved. She opted for the latter, and was able to work with R's attorney to reach an amicable settlement amount, which covered out-of-pocket expenses and compensation for R's pain and suffering after Dr. S completed her treatment.

Takeaways

The statute of limitations is the amount of time a plaintiff has to initiate suit.  States differ as to whether that time clock begins at the time of the negligent action, or when the effects of that negligent action are discovered, or small variations on those themes.  But regardless of those differences, the amount of time allowed by each state is strictly fixed for the vast majority of cases.  The most frequent exception in nearly all, if not all, of the states is that minors are entitled to an extended amount of time within which to begin a suit in dental malpractice, with the exact length of that time extension also specific to each state.  As a tandem concept, many states also require that dentists maintain records for minors longer than for adult patients; practitioners need to be aware of these details, lest they destroy records prematurely, thereby setting up significant legal issues if they cannot produce records during litigation or in response to a Board complaint, at a time when they should still have been maintained.

This case speaks also to both the type and quality of radiographs.  Here, while Dr. S was able to radiographically visualize the entirety of the teeth she treated, which is a generally agreed-upon requirement in the dental community, she was unable to visualize the neighboring maxillary sinus.  While dentists might legitimately debate whether Dr. S should have taken or ordered a radiographic study (such as a panoramic or CBCT) that also captured the sinus, there is no such dispute that, regardless of how and with what diagnostics she went about it, it was her obligation to assure that she was treating the situation for which the patient was seeking treatment.  According to the ENT – by way of what might reasonably be viewed as a joust – Dr. S did not do so.  But whether a joust or simply a statement of symptom causation, it was that conclusion by the ENT which most prominently led Dr. S to settle the matter rather than fight it.

Finally, we address the factors which left Dr. S without professional liability coverage: her claims-made policy and her not having purchased a tail upon leaving that policy behind in favor of another.  While an occurrence policy will forever protect a dentist – whenever a lawsuit might be filed – if a negligent action took place while that policy was in effect, a claims-made policy will only provide coverage if it is in effect at the time a claim of negligence/malpractice is made, unless a tail was purchased to extend the coverage umbrella of a claims-made policy which is no longer in effect.  Some exceptions to the need for a tail – such as death, disability, or retirement – might exist, based upon the stated policy terms, but for the most part, it is the norm that a dentist will be left as Dr. S was if they close a claims-made policy without purchasing tail coverage.

Summary of takeaways:

  • Broaden the diagnosis: Persistent or unclear symptoms should prompt consideration of non-dental causes and appropriate referral.
  • Avoid unnecessary treatment: Repeating irreversible procedures without clear evidence increases patient harm and liability risk.
  • Know your legal exposure: Treating minors can extend the statute of limitations, and gaps in malpractice coverage can leave you personally liable.
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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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Additional Risk Tips content

A dropped crown became a malpractice claim. Learn how prevention, follow-up, and patient communication can help reduce dental risk.

Criticizing prior dental work can heighten malpractice risk. Learn how communication, professionalism, and documentation influence legal outcomes.

A misdiagnosed teen patient undergoes unnecessary root canals, revealing key risks in narrow diagnosis, delayed referral, and extended malpractice exposure due to minor status.

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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