Surveys were carried out in cats presented for dental examination in the Netherlands (432 cats) and in the United States (78 cats). In 62% of the Dutch cats and 67% of the US cats, resorptive lesions were present. In the Dutch study, Asian Short-hair (principally Siamese) cats were most commonly involved, and male cats were more commonly affected than females. The most commonly affected teeth were the fourth maxillary premolar and the mandibular premolar and molar teeth.