Devices descending from K161239

2 later devices reach MTA2.2 Material through their predicates, nearest generation first.

Generation	Number	Device	Applicant	Decided	Own descendants	Recalls
+1	K181917	MTA2.3 Materials	NuSmile, Ltd.	2019	1	—
+2	K241457	Vista BC Putty	Inter-Med, Inc.	2024	0	—