Exploring the contexts, mechanisms and outcomes of a torture, abuse and dental anxiety service in Norway: a realist evaluation.

Background: Torture, abuse and dental anxiety (TADA) are often precursors to developing a pathological relationship with dental care due to elevated anxiety. Consequently, patients who suffer from one or more of these tend to avoid dental services. This could leave them with severe tooth decay, which could affect their general and psychosocial health. Norwegian dental services have implemented the TADA service to specifically alleviate dental anxiety and restore oral health for the TADA patient group. However, the service has not been evaluated, and there is a need to understand how and why this service works, for whom, under what circumstances. Therefore, this study aimed to develop theories on how the service's structure alleviates dental anxiety and restores these patients' oral health. Although developed in a Norwegian context, these theories may be applicable to other national and international contexts.

Methods: This realist evaluation comprised multiple sequential methods of service and policy documents (n = 13), followed by interviews with service developers (n = 12).

Results: The analysis suggests that, by subsidising the TADA service, the Norwegian state has removed financial barriers for patients. This has improved their access to the service and, hence, their service uptake. National guidelines on service delivery are perceived as open to interpretation, and can hereby meet the needs of a heterogeneous patient group. The services have become tailored according to the available regional resources and heterogeneous needs of the patient population. A perceived lack of explicit national leadership and cooperative practices has resulted in regional service teams becoming self-reliant and insular. While this has led to cohesion within each regional service, it is not conducive to interservice collaborations. Lastly, the complexity of migration processes and poor dissemination practices is presumed to be the cause of the lack of recruitment of torture survivors to the service.

Conclusions: Policy documents and service developers described the TADA service as a hybrid bottom-up/top-down service that allows teams to practise discretion and tailor their approach to meet individual needs. Being free of charge has improved access to the service by vulnerable groups, but the service still struggles to reach torture survivors.