<https://data.doctorgenius.com/definition/incisal-ridges.rdf>
<http://schema.org/sameAs>
<https://www.encyclo.co.uk/meaning-of-incisal_ridge>
<https://www.dentalexcellencegroupnj.com/dumont-nj/which-is-better-invisalign-or-braces/>