Russian Version of OHIP-EDENT-19 for Adults With Complete Tooth Loss

The Oral Health Impact Profile for Edentulous Patients (OHIP-EDENT-19) is a 19-question survey about how complete tooth loss and dentures affect daily life. This study will translate and culturally adapt the questionnaire into Russian and assess its validity and reliability in Russian-speaking adults who have lost all teeth in both jaws and wear complete removable dentures. The study includes cognitive interviews with up to 30 participants and a psychometric assessment in 300 participants. A subgroup of 60-80 clinically stable participants will complete the questionnaire again after 10-14 days. No treatment is assigned or changed; participation involves questionnaires, interviews, and collection of limited demographic and clinical information.