Abstract
It is of interest to document data on oral health care services for adults with cognitive and intellectual disabilities. Hence, a study protocol was registered at the International Prospective Register of Systematic Reviews (PROSPERO) with registration number: CRD42020150759. We used PubMed, Science Direct, LILACS and SCIELO to collect data from known literature using keywords containing MESH (Medical Subject Headings) terms. The risk of bias rating for the collected data was calculated using the Newcastle-Ottawa assessment Scale. The AHRQ (Agency for Healthcare, Research and Quality) was used for classifying the level of evidence in the collected data. Analysis of available data shows that there is a lack of dentists with adequate skills to treat people with disabilities resulting in high cost for dental treatment. Thus, we conclude that inconvenient location of dental clinic, lack of dentists willing to treat people with disabilities and attitude of dental staff towards people with learning disabilities were considered as barriers and challenges faced for dental health service utilization in this context.