In the present work, the most common dental affections were recorded in large ruminants in twenty nine cases, including brown teeth, diastasis dentium, rotation of the rostral teeth, dental calculus, sharp enamel points, enamel flecks, false polyodontia and prognathism. Many dental affections in ruminants had no bad effect on the animal. Other produce severe pain to the patient animal and subsequently lead to complications. The later affections could be treated surgically in routine proceedures.