The KNMT Complaints Service received 916 complaints in 2025, nearly 120 more than in 2024, and resolved approximately 70 percent through mediation or advisory consultations. Of the total, 672 were forwarded to a complaints officer for mediation. Separately, 111 advisory consultations were conducted by a complaints adviser, who helps patients determine how to proceed before a formal mediation process begins. Of those 111 cases, 23 eventually progressed to full mediation. The 70 percent resolution rate is consistent with previous years. The largest complaint categories were dental treatment (31 percent), communication, conduct, and language issues (31 percent), and costs and billing (21 percent), with the remaining 17 percent classified as other. The KNMT advises practices to make their complaints procedure easy to find on their website, including the name and contact details of the person responsible for handling complaints, information about the KNMT Complaints Service, and a reference to the Geschilleninstantie Mondzorg for cases that cannot be resolved through internal mediation. All links and contact details should be kept current.