In a significant ruling on June 17, 2026, the Appellate Division of the Supreme Court of the State of New York reinstated dental malpractice claims against several defendants in the case of Rosenzweig v. Singer. This decision impacts the rights of patients seeking redress for alleged malpractice and clarifies the legal standards for such claims.
The court's decision comes after Bart P. Rosenzweig, the plaintiff, appealed judgments that dismissed his claims against dental professionals, including Alan B. Singer and the Hirsch defendants. The court found that the lower court had made errors in dismissing parts of Rosenzweig's case, which could have significant implications for future dental malpractice cases.
Background
The dispute centers around Bart P. Rosenzweig, who received dental treatment from various practitioners, including Jack Hirsch and Alan B. Singer, from 2003 to 2017. The case began when Rosenzweig, then an infant, underwent dental procedures that he later claimed resulted in serious complications.
In June 2017, Rosenzweig sought treatment for pain and swelling in his jaw, leading to a diagnosis of ameloblastoma, a benign tumor. Following surgery to remove the tumor and reconstruct his jaw, Rosenzweig filed a lawsuit on October 15, 2017, alleging dental malpractice against the involved dentists. The case progressed through the courts, eventually leading to motions for summary judgment by the defendants.
The Ruling
The Appellate Division ruled in favor of Rosenzweig, reversing earlier judgments that had dismissed his claims. The court found that the lower court had incorrectly granted summary judgment to the defendants, particularly regarding claims based on acts occurring after October 14, 2007.
The court stated, "the Supreme Court erroneously granted that branch of the Hirsch defendants' motion which was for summary judgment dismissing so much of the dental malpractice cause of action as was based on alleged acts that occurred after October 14, 2007."
Additionally, the court ruled that Singer had not met the necessary burden to dismiss the claims against him. The judges involved in the decision included Francesca E. Connolly, Paul Wooten, Lourdes M. Ventura, and Phillip Hom.
Impact
This ruling has significant implications for dental malpractice claims in New York. By reinstating Rosenzweig's claims, the court emphasized the importance of allowing patients to pursue legal action when they believe they have been harmed due to substandard care.
The decision also clarifies the responsibilities of dental professionals in proving that they did not deviate from accepted practices. This sets a precedent that may influence how future cases are handled, particularly regarding the burden of proof in malpractice claims.
What's Next
Following this ruling, the case will return to the lower court for further proceedings. The defendants may have the option to appeal this decision to a higher court, but details on any potential appeals were not available in the court filing. The outcome of this case could affect how dental malpractice claims are evaluated in the future.