There are often opportunities to gain experience of research as a dentistry/DCP student. Some dental degree courses require completion of a research project and there is no reason why this couldn’t be education focused. See if your school has an active education research group to identify a member of staff who would be willing to talk to you about your research ideas and possibly supervise you.
If there is not a defined education research group it is still likely that there will be staff within your school with an interest in educational research, even if this is focused on evaluating current and or new teaching practices and models.
If you don’t have to complete a research project as part of your degree requirements there may be other opportunities to undertake educational research – for example vacation scholarships or internships, or intercalated research degrees. Some of these may even pay you a small salary/stipend.