That 65mil was part of their spin off of dental and spine. Spine and dental are reported in a separate operating statement starting q2 2021 which is the segment that certain r&d is. Also the classification of that expense is part of one off expenditures that are infrequent, not to be confused with extraordinary items. They are not part of r&d agreements and that includes third parties. Again the 2.5mil has nothing to do with sintx.
The hilarious part is that they spun off dental and spine when years ago that thought was apparently fud.