Put it in! Talent in different fields isn't mutually exclusive. If you're applying to dental school, you obviously have a passion for it and should be able to come up with an answer to the inevitable "why dentistry" be it working with your hands, the artistic aspect of it, having an opportunity to work with people closely, whatever. Hell, if anything, those extracurriculars could put you ahead because 1) it makes you stand out as an applicant 2)it gives you something comfortable to get excited about and talk about during more chill interviews 3) you can easily turn that talent as a jumping point into how you can improve the field on a larger scale.
Good luck!