We conducted a comparison of the preoperative airway and teeth status assessment with a dedicated postoperative assessment. We included 211 patients with a preoperative airway and teeth assessment performed by the designated physicians at the department of anaesthesia. 27% of the patients had an incomplete preoperative assessment. 66% were not informed about the risk of damages to the teeth and 16% of the patients were postoperatively considered to have periodontitis compared to only 3% preoperatively. Postoperatively we found, that many more patients had an overall poor dental status.