The bulk update request #10371 is pending approval.
create alias toothy_grin (4075) -> grin (99243) # has blocking transitive relationships, cannot be applied through bur
create implication grin (99243) -> teeth (866331)
Reason: The wiki defines a grin as a smile wide enough to see teeth. Toothy grin, then, is a redundant tag. Also, by that definition, teeth should be visible.