Background
Dental education has evolved from traditional pedagogy with major didactic information acquisition towards the accomplishment of learning outcomes in competency-based education [Undeniably, feedback is regarded as a key component of formative assessment and one of the elements with the greatest impact on learning [Feedback may be delivered in a variety of ways which include the feedback sandwich model and the Ask-Tell-Ask (ATA) model. The term "feedback sandwich" appears to have originated in the 1940s [On the other hand, the ATA feedback was designed as a notion for bidirectional feedback that facilitates feedback conversation [Dental materials science is a crucial preclinical course in most undergraduate dental programmes that integrates the concept of chemical engineering and materials science into the field of dentistry [Nevertheless, it is critical to consider individual differences that may affect how feedback is received and perceived when evaluating students’ perceptions of various feedback models. Ethnicity is an important factor, as a previous study showed that cultural values and norms can influence attitudes towards feedback. According to the study, Asian medical students typically respond better to feedback that is given in a respectful and positive manner [