JOHAL, AMACOLONIO-SALAZAR, FIORELLABADABAAN, GHOFRAN MOHAMMED S2025-08-212025https://hdl.handle.net/20.500.14154/76232Introduction: The aim of this mixed-methods study is to understand the training and experience of GDPs (of less and more than 10 years qualified), in providing CAT for adults in private practice. Materials: A mixed methods approach was adopted, including an online questionnaire and one-to-one semi-structured interviews with GDPs who had completed a 32Co webinar course in CAT. Quantitative data were analysed descriptively using MS Excel and SPSS v24 (Part 1) and qualitative data using framework methodology (Part 2). The qualitative and quantitative data were integrated through the triangulation process (Part 2). Results: In total, 100 completed surveys (55 males; 55 >10 years qualified) and 16 semi-structured interviews (9 males, 11 >10 years qualified) were conducted, 10 main themes and 29 sub-themes were generated from the interviews. GDPs (qualified >10 years) had gained basic understanding of the theoretical background of CAT. GDPs working experience in CAT (regardless of the years of qualification) was limited to simple mild-moderate malocclusion traits. Participants explored several reasons for choosing a specific provider. GDPs (>10 years of qualification) were more confident in complex treatment mechanics, including IPR and more aware of the reasons for undertaking and staging IPR and various attachment shapes. A retention preference following CAT provision was laboratory-made upper and lower fixed retainers, especially in complex malocclusions that have a high risk of relapse, as well as VFRs either in isolation or in combination. Conclusions: The findings from this study suggest that the training courses were of limited benefit to gain deep understanding of theoretical and clinical aspects of CAT. GDPs felt confident in treating mild or moderate malocclusion traits. GDPs with longer years qualified were more comfortable in using complex treatment mechanics and aware of the reasons for using and staging IPR. Retention preference following CAT to adult patient varied widely.186enClear aligner treatment (CAT)General dental practitioners (GDPs)Thesis