1. Non-carious lesions of hard tissues of teeth arising after eruption: hyperesthesia of teeth, necrosis of hard tissues.
2. Non-carious lesions of hard tissues of teeth arising after eruption: enamel erosion, wedge-shaped defects.
3. Non-carious lesions of hard tissues of teeth arising after eruption: abrasion of hard tissues.
4. 4. Non-carious lesions of hard tissues of teeth arising after eruption: tooth injuries.
5. 5. Non-carious lesions of the hard tissues of the teeth that occur after eruption: medications and toxic disorders of the development of hard tissues of the teeth
6. Non-carious lesions of the hard tissues of the teeth occurring before eruption: hyperplasia.
7. Non-carious lesions of hard tissues of teeth arising before eruption: anomaly of the development and eruption of teeth.
8. Non-carious lesions of hard tissues of teeth arising before eruption: hereditary disorders of tooth development.
9. 9. Non-carious lesions of the hard tissues of the teeth occurring before eruption: hypoplasia.
10. Non-carious lesions of the hard tissues of the teeth occurring before eruption: endemic fluorosis.