The article discusses oral health-related quality of life (OHRQoL), a multidimensional concept that includes an individual's subjective evaluation of oral health, functional well-being, emotional well-being, expectations, satisfaction with care, and self-perception. OHRQoL is an essential part of general health and well-being and is recognized by the World Health Organization (WHO) as an important segment of the Global Oral Health Program. It has wide-reaching applications in survey and clinical research. The paper defines OHRQoL, explains its importance for dental practice and research, describes how it is used in research, and identifies implications for health policy and oral health disparities. It presents a theoretical model for OHRQoL that incorporates biological, social, psychological, and cultural factors. The model links health status, functional status, oral-facial appearance, psychological status, OHRQoL, and overall quality of life (QoL). It recognizes the effects of environmental or contextual factors on oral health perceptions and related QoL. OHRQoL is a function of various symptoms and experiences and represents the person's subjective perspective. The paper also discusses the use of OHRQoL in survey research and as an outcome measure in clinical studies. It highlights the importance of OHRQoL in assessing the impact of oral health on overall health and well-being, and its implications for health policy and disparities. The article emphasizes the need for OHRQoL research to inform public policy and improve access to care. It also discusses the role of OHRQoL in evaluating treatment effectiveness and patient-centered care. The paper concludes that OHRQoL has significant applications in dentistry, healthcare, and dental research, and that it can be used to inform public policy and help eradicate oral health disparities.The article discusses oral health-related quality of life (OHRQoL), a multidimensional concept that includes an individual's subjective evaluation of oral health, functional well-being, emotional well-being, expectations, satisfaction with care, and self-perception. OHRQoL is an essential part of general health and well-being and is recognized by the World Health Organization (WHO) as an important segment of the Global Oral Health Program. It has wide-reaching applications in survey and clinical research. The paper defines OHRQoL, explains its importance for dental practice and research, describes how it is used in research, and identifies implications for health policy and oral health disparities. It presents a theoretical model for OHRQoL that incorporates biological, social, psychological, and cultural factors. The model links health status, functional status, oral-facial appearance, psychological status, OHRQoL, and overall quality of life (QoL). It recognizes the effects of environmental or contextual factors on oral health perceptions and related QoL. OHRQoL is a function of various symptoms and experiences and represents the person's subjective perspective. The paper also discusses the use of OHRQoL in survey research and as an outcome measure in clinical studies. It highlights the importance of OHRQoL in assessing the impact of oral health on overall health and well-being, and its implications for health policy and disparities. The article emphasizes the need for OHRQoL research to inform public policy and improve access to care. It also discusses the role of OHRQoL in evaluating treatment effectiveness and patient-centered care. The paper concludes that OHRQoL has significant applications in dentistry, healthcare, and dental research, and that it can be used to inform public policy and help eradicate oral health disparities.