Devices descending from K212448

2 later devices reach NightGuard Flex through their predicates, nearest generation first.

Generation	Number	Device	Applicant	Decided	Own descendants	Recalls
+1	K221022	NextDent Ortho Flex	Vertex-Dental B.V.	2022	1	—
+2	K251415	Additively Manufactured Aligner Resin	Aidite (Qinhuangdao) Technology Co., Ltd.	2025	0	—