AimThis study aimed to review the qualitative scientific literature investigating experience of the mouth and oral health amongst adults with disabilities and/or complex health conditions.MethodsA scoping review methodology was applied in accordance with the methodological framework of Arksey & O'Malley and the PRISMA‐SCR checklist. Electronic searching was performed using the databases Pubmed, Embase, and PsychInfo.ResultsThirty articles were included in the final selection. The populations included in the selected studies were very varied in terms of health conditions and disabilities. Three major themes relating to the experience and understanding of the mouth, oral health, and function were highlighted in the review: the representation of oral health, the influence of oral health on the participant's life, and the influence of the socio‐environmental context on oral health. No study explicitly described the functional, social, and psychological roles of the mouth in a comprehensive manner.ConclusionsPerception of the mouth and oral health differs depending on the individual and their health condition. Oral health is described as dependent on the socio‐environmental context, however, outside of the experience of dental care services, this context is not investigated in the literature. This scoping review demonstrated that exhaustive understanding of the dimensions of the mouth and oral health has not been explored in published research for this population.