Master's Thesis from the year 2023 in the subject Medicine - Dentistry, grade: A, Teerthanker Mahaveer University (Teerthanker Mahaveer University), course: MDS, language: English, abstract: It is important to understand how a very common prevalent condition of tooth wear (TW) impacts a person¿s day-to-day oral health. An emerging concept of measuring the parameter of oral healthrelated quality of life (OHRQoL), which evidently impacts the daily living of a person, makes it practical to examine the correlation between TW and OHRQoL. For measuring the OHRQoL, we can apply various methods, and the most effective is the use of the Oral Health Impact Profile (OHIP) questionnaire. Accordingly, the aim of this study was to assess the correlation between TW and the OHRQoL among adult patients attending a dental college and hospital. Methods: A cross-sectional research was performed on patients who visited the outpatient department of Teerthanker Mahaveer Dental College and Research Centre, Moradabad, India. Initially, the sociodemographic details of patients, including their oral hygiene and dietary habits, were recorded. This step was followed by the assessment of TW using the Smith and Knight TW index. Then, the translated version of the OHIP questionnaire was filled up, in which the patients were asked to rate each question on a Likert scale, with five points ranging from 0 to 4, where 0 = never, 1 = hardly ever, 2 =occasionally, 3 = fairly often, and 4 = very often.