THE Žalgiris Clinic in Vilnius University Hospital collects data on patients' dental disorders through surgery. The data period shall be from 2015 to 2024. The data set shall include the protocol identifier of the operation carried out, the patient's code encrypted, the year of birth, the TLK-10-AM disease code and the verbal name, the start, end times of the operation, the type of anaesthesia used, the risk codes and the start and end times of the operation. In addition, the name of the patient insurer, the Jaris code and the type of insurance shall be provided and the data shall be taken from Smirra.