Devices descending from K031664

2 later devices reach Elements Obturation Unit through their predicates, nearest generation first.

Generation	Number	Device	Applicant	Decided	Own descendants	Recalls
+1	K042828	Obtura Gutta Percha Delivery System, Model 823-700	Young O/S, LLC	2004	1	—
+2	K060347	B&L L-Beta, Model WL-B1	B&L Biotech Co., Ltd.	2006	0	—