French authorities have placed several individuals under formal investigation over an alleged €58 million fraud against the national health insurance system, involving fictitious patients and billing for treatments never carried out. The scheme reportedly came to light partly through an anonymous tip rather than routine oversight, pointing to the limits of existing monitoring structures. According to the investigating magistrate, multiple dental centres began submitting large volumes of false claims shortly after ownership changed hands at the end of 2024, raising questions about whether transfer-of-management moments receive adequate regulatory scrutiny. The case follows earlier sanctions by the French health insurance system against dental centres for irregular billing, suggesting a recurring pattern rather than an isolated incident. The European Federation of Periodontology and Preventive Dentistry (FEPPD) argues that mandatory transparency measures could reduce the window in which such fraud goes undetected. Specifically, the federation calls for patients to have a clear, enforceable right to receive a copy of the dental technical invoice for their treatment. This would allow discrepancies between prescribed, produced, and billed care to surface earlier and reduce dependence on whistleblowers or chance discoveries.