ABSTRACT
The study group comprised a total of 21 subjects (10 women and 11 men) from the urban area aged 20 to 72 who presented themselves to treatment at the Dental Office during July-December 2018. The purpose of the study was to identify the etiological factors responsible for the occurrence of non-carious lesions in the patients involved in the study. The study group of 21 patients (10 women and 11 men) from the urban area, aged 20 to 72 years, were clinically examined and dental impressions were obtained in order to ascertain the study patterns. Subjects diagnosed with non-carious lesions filled a questionnaire based on which the risk factors that led to these changes were identified. The study models were used to assess the degree of cervical tooth damage, according to SMITH-KNIGHT index. The main etiological factors found to be responsible for the occurrence of non-carious lesions in the studied group were the excessive consumption of acidic and carbonated beverages (71.42%), the presence of gastro-esophageal reflux disease (14.28%), incorrect technique of brushing (28.57%), vicious habits-nail biting (14.28%), daily consumption of sunflower seeds (9.52%), use of toothpicks as auxiliary hygiene (19.04%) and night teeth grinding (4,76%).