Table 1.

Overview of the two reviews.

	Review 1	Review 2
Research Question	How effective are interventions in improving oral health and related health behaviours in adults with SMD?	What factors influence implementation of interventions to improve oral health and related health behaviours in adults with SMD?
Evidence Type	Quantitative—comparative trials of interventions	Qualitative—e.g., interview/focus group studies of perceptions/experiences of interventions Quantitative evidence on implementation (e.g., retention levels, numeric ratings of acceptability)
Scope	Weighing body of evidence of trials testing effectiveness of oral health and related health behaviour interventions Focus on effect sizes, and resource implications (e.g., costs) where available Meta-analysis (if data permits)	Synthesis of stakeholders’ perceptions and experiences of interventions Focus on implementation issues, including settings, acceptability, and potential adverse effects of interventions Meta-synthesis of qualitative studies