This book aims to collect and present the state of evidence in the field of oral health as it pertains to people living with disabilities. This aspect of dental/oral care has, in recent years, begun to garner the attention it deserves. This is evidenced by the recommendation of the General Dental Council (UK) that Special Care Dentistry, which seeks to improve the oral health of people and societal groups with disability, is to be recognized as a separate specialty in 2005. In light of such developments, it is necessary to build a scientific evidence base to support trainees and courses which attempt to impart education to practitioners and caregivers. A dedicated collection of the current state of evidence will be of help to students and practicing dentists as well as medical practitioners and caregivers to emphasize the importance and application of oral health maintenance in such individuals.