EXERCISE 4 Вставьте артикли, где это необходимо: 1. ... tooth consists of a crown and one or more roots. ... crown is ... visible part, ... root is ... hidden part. 2. ... tooth is composed of enamel, dentine, cementum and pulp. 3. Enamel is ... hardest substance in the body. 4. Cementum is ... outer covering of ...root. 5. Dentine occupies ... interior of the crown and root. 6. ... vessels and ... nerves of the pulp enter ... root apex through the apical foramen. 7. ... space occupied by the pulp is called ... pulp chamber.