Assertion: ligament's fiber | /r/HasProperty | described
Facets:
value: traditionally
type: OTHER
value: as spanning the interproximal tissue
type: OTHER
Source sentences:
text: - these fibers are unique in that they exist entirely within the gingiva and do not contact the tooth transseptal group - these fibers have traditionally been described as spanning the interproximal tissue between adjacent teeth, into which they are embedded.  
text: - these fibers have traditionally been described as spanning the interproximal tissue between adjacent teeth, into which they are embedded.