Periodontal risk-assessment tools are widely promoted as a means of standardising dental hygiene therapy planning, yet their incremental effect on treatment-planning concordance in resource-constrained teaching-hospital settings remains poorly quantified. The indicator had a mean of 56.118 (SD 14.335), ranging from 20.10 in Morocco to 76.10 in Sao Tome and Principe. The estimation framework treats the periodontal risk-assessment tool as a cluster-level intervention, with dental hygiene therapists as the unit of analysis and treatment-planning concordance as the primary outcome. The design permits separation of risk-stratification effects from secular trends and from therapist-level heterogeneity. The contribution is a transferable estimation architecture for evaluating risk-assessment tool deployment in African dental hygiene therapy contexts, together with a demonstration that existing cross-national risk-communication data can anchor the design's external validity. The analysis indicates that concordance effects are likely to be conditional on baseline risk-communication performance and on the supervision environment in which therapists practise.
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Aciro et al. (2026) studied this question.
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