Introduction:
DH is a frequent complaint of dental patients accompanying cervical dental pathology.

Aim of the study:
To determine DH prevalence in young people of Donetsk region of Ukraine; reveal the correlation between DH indicators and manifestations of psycho-emotional stress, its features in patients with cervical dental pathology.

Material and methods:
A clinical examination of 272 patients aged 18-44 years was carried out to diagnose DH and cervical dental pathology. The information about presence of parafunctional habits, symptoms of temporomandibular disorders (TMD), complaints of overtiredness and frequent headache was entered into the developed questionnaire. The level of personal anxiety was determined using Ch.D. Spielberger State-Trait-Anxiety-Inventory.

Results:
Medium strength correlation between sex and DH prevalence and intensity has been determined. Direct correlation has been observed between TMD symptoms and the level of personal anxiety and habit of tooth clenching. Medium strength correlation has been determined between unilateral type of chewing and complaints of overtiredness and bruxism. In patients with erosion DH prevalence was in inverse correlation with age, and it was in direct correlation with habit of biting and licking lips. Its intensity in patients with cervical caries was directly correlated to age and parafunction of biting the mucous membrane of the cheeks. Medium-strength correlation has been observed between DH prevalence and the number of teeth with a wedge-shaped defect and combination of cervical pathology.

Conclusions:
We suggest taking into account established correlations during history taking, clinical examination and treatment of a young dental patient, especially with cervical dental pathology in order to reduce DH prevalence and intensity and prevent its development.