The study aimed at assessing the cooperation of orthodontists and technicians, in the field of disinfection procedures and identification of work stages that may cause the transmission of cross‑infection while making impressions and plaster models. Research material were answers to survey questions provided by participants of the 21st Congress of the Polish Orthodontic Society and the 3rd Congress of Polish Orthodontic Technician Society in 2018 in Wroclaw. The obtained data was also analyzed in relation to scientific publications and binding law regulations. The survey concerned procedures of dental impressions disinfection and mutual knowledge of these procedures between physicians and technicians. In the analyzed literature, special attention is paid to the need of establishing detailed procedures related to disinfection, transport, and handling impressions and orthodontic appliances between the orthodontic office and technical laboratory. Mutual knowledge of impression decontamination procedures is insufficient among both technicians and physicians. Disinfection of an impression and marking it as sterilized in the office is essential to limit transmission of microbes to the laboratory. It is necessary to implement common, unified procedures for decontamination of impressions and appliances for orthodontic offices and laboratories.