The effectiveness of sensory adaptive dental environments to reduce corresponding negative behaviours and psychophysiology responses in children and young people with intellectual and developmental disabilities: a protocol of a systematic review and meta-analysis

People with Intellectual and Developmental Disabilities (IDDs) are disproportionately vulnerable to poorer oral health due to their complex needs specifically sensory processing difficulties. This leads to increased maladaptive behaviours and psychophysiology responses of dental anxiety amplified by the overstimulating aspects of the dental environment. Although, there is a growing body of evidence to suggest that sensory adaptions are an effective strategy for individuals with IDDs in a wide range of settings, there is a lack of high-quality evidence detailing the effectiveness in a dental setting. The objective of this review is to assess the effectiveness of sensory adaptive dental environments (SADE) to reduce dental anxiety, corresponding negative behaviours and psychophysiology responses in children and young people with IDDs. The systematic review will include all Randomized Controlled Trials (RCTs) that investigate the effectiveness of SADE compared to control (no intervention), waitlist or usual care (regular dental environment) to reduce dental anxiety and the corresponding negative behaviours and psychophysiology responses in children and young people (upto the ages of 24 years) with IDDs. This review will be conducted according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Databases including MEDLINE (Ovid), The Cochrane Library, Embase, Google Scholar, Web of Science and OT Seeker will be searched using appropriate keywords. Additionally, citation searching will be conducted. Screening based on titles and abstracts will be done after de-duplication, followed by full-text reading for selection based on the inclusion criteria. Data extracted from the included studies will be tabulated and assessed for risk of bias. If applicable, a meta-analysis of the pooled data will be conducted. The review is registered with PROSPERO (CRD42022322083).