This article provides a brief review of oral health in persons with intellectual disability (PWIDs) within Singapore, and considerations for the family physician. The oral health status of PWIDs appears poorer than neurotypical Singaporeans. Oral health issues have a significant effect on a person’s general health and can worsen risk of certain chronic medical conditions such as diabetes mellitus and pneumonia. Multiple barriers affect PWIDs’ pathway to dental care, and this can be categorised into six barriers as described by the British Dental Association’s case mix tool. The medical physician may be the first healthcare professional to pick up on the atypical presentation of dental problems in PWIDs. Adequate history-taking, understanding how barriers affect health-seeking, cross-disciplinary communication, and advocating for oral health’s importance can all support PWIDs achieve appropriate dental care. This justly helps our society achieve oral health, and health equity for PWIDs.