About the Authors

Yuping Li

Affiliation Minnesota Dental Research Center for Biomaterials and Biomechanics (MDRCBB) Department of Restorative Sciences, University of Minnesota School of Dentistry, Minneapolis, Minnesota, United States of America

Conrado Aparicio

apari003@umn.edu

Affiliation Minnesota Dental Research Center for Biomaterials and Biomechanics (MDRCBB) Department of Restorative Sciences, University of Minnesota School of Dentistry, Minneapolis, Minnesota, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: YL CA. Performed the experiments: YL. Analyzed the data: YL CA. Wrote the manuscript: YL CA.