Delivering smoking cessation interventions in NHS primary dental care - lessons from the ENHANCE-D trial

Introduction Smoking is a major contributor to health inequalities in the UK. The ENHANCE-D trial is evaluating three smoking cessation interventions (nicotine replacement therapy [NRT], electronic cigarettes [ECs] or 'very brief advice') delivered in NHS primary dental care. This qualitative study aimed to provide insight into the factors that could influence the adoption of the interventions in these settings.Methods Interviews were conducted at two timepoints. Purposive maximum variation sampling was used to recruit and interview a total of 24 dental patients, 12 dental professionals and three NHS dental commissioners. Thematic analysis was carried out using normalisation process theory as an analytical framework.Results Dental settings were perceived as an appropriate location to deliver smoking cessation interventions. Patients had several motivating and demotivating factors regarding use of NRTs or ECs; they often had negative preconceptions. Financial considerations were major influencers for both patients and dental teams. The time pressures for dental practices were identified as a major barrier. Some practical issues, such as procurement and stock supply, would need to be considered if the ENHANCE-D interventions were to be implemented in routine practice.Conclusion Primary dental care teams are well-placed to deliver smoking cessation interventions. However, a number of facilitators and deterrents have been identified and strategic changes are needed for successful implementation.