Department of Paediatric Dentistry and Special Care, PAECOMEDIS Research Cluster, Ghent University, Ghent, Belgium. Electronic address: elanagai.rathinam@ugent.be. Department of Paediatric Dentistry and Special Care, PAECOMEDIS Research Cluster, Ghent University, Ghent, Belgium. Department of Oral Pathology, School of Dentistry, Faculty of Medical Sciences, University of the West Indies, St. Augustine, Trinidad and Tobago. Tissue Engineering and Biomaterials Group, Department of Basic Medical Sciences, Ghent University, Ghent, Belgium. Oral Biology, Dental School, Ghent University, Ghent, Belgium.