SummaryThe goal of this study was to determine the frequency of anomalies in incisor teeth depending on the horse's age, sex, diet, diseases and floating frequency. A total of 255 horses from three Polish voivodeships, KuyavianPomeranian, Greater Poland and Upper Silesia, were examined. The testing of incisor teeth was non-invasive and protocol-based. The most common defects were sharp edges of incisors in the maxilla and mandible, as well as a shortened mandible in relation to the maxilla. A relationship was proved between incisor anomalies and the horses' age, floating frequency and bad habits. Anomalies of incisors are a common problem in horses in Poland, but they do not cause serious problems in the use of these animals.