Dental education: Lecture versus flipped and spaced learning

Area of Science:

• Dental Education
• Medical Pedagogy
• Educational Technology

Background:

• Traditional lectures dominate dental institutions, limiting diverse teaching strategies.
• Innovative methods like flipped classrooms and spaced learning are underutilized.
• This study addresses the need to evaluate alternative pedagogical approaches in dental education.

Purpose of the Study:

• To compare the effectiveness of traditional lectures, flipped classrooms, and spaced learning in dental education.
• To assess both short-term and long-term knowledge retention across different teaching methodologies.
• To gather student feedback on the implemented teaching strategies.

Main Methods:

• A prospective cohort study design was employed.
• Dental students were randomized into three groups, each receiving a different teaching method.
• Knowledge retention was evaluated using multiple-choice questions immediately and six months post-intervention, with student feedback collected via a standardized questionnaire.

Main Results:

• Spaced learning yielded the highest mean scores for short-term knowledge gains (165.85), followed by traditional lectures (163.70) and flipped classrooms (153.25).
• A statistically significant difference (P=0.003) was observed in short-term learning gains among the groups.
• Long-term knowledge retention showed no significant differences between traditional lectures (147.50), spaced learning (146.90), and flipped classrooms (145.05) (P=0.657).

Conclusions:

• Spaced learning demonstrated superior immediate knowledge acquisition compared to traditional lectures and flipped classrooms.
• Flipped classroom and spaced learning methods proved comparable to traditional lectures for long-term knowledge retention.
• The findings suggest that innovative teaching methods can be effective alternatives in dental education.