This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
University of Michigan School of Dentistry. University of Michigan School of Dentistry own AndrewHorne talk created this work entirely by myself March UTC AndrewHorne talk AndrewHorne Original upload log en Kafuffle CommonsHelper page en UniversityofMichiganSchoolofDentistry AndrewHorne bytes no like this one in Fall