Devices descending from K921979
24 later devices reach Root ZX through their predicates, nearest generation first.
| Generation | Number | Device | Applicant | Decided | Own descendants | Recalls |
|---|---|---|---|---|---|---|
| +1 | K112665 | Tri Auto Mini - Endodeontic Treatment Motorized Handpiece | J. Morita USA, Inc. | 2012 | 1 | — |
| +1 | K090925 | Multiple (Apex Locator), Model RCM-7 | J. Morita USA, Inc. | 2009 | 2 | — |
| +1 | K073185 | APX21 | Techdent Technologies, Ltd. | 2008 | 1 | — |
| +1 | K032743 | Apex NRG | Medicnrg, Ltd. | 2004 | 7 | — |
| +1 | K972407 | Root Apex Locator | Toei Electric Co., Ltd. | 1997 | 16 | — |
| +2 | K210475 | EQ-M | Meta Systems Co., Ltd. | 2022 | 0 | — |
| +2 | K171867 | Dr’s Finder NEO | Good Doctors Co., Ltd. | 2018 | 0 | — |
| +2 | K151274 | Dr's Finder | Good Doctors Co., Ltd. | 2016 | 1 | — |
| +2 | K103123 | Apex Pointer+; Measruing Cable, Hook, Lip Clip, Touch Probe (Accessories) | Micro-Mega Societe Anonyme | 2011 | 0 | — |
| +2 | K071133 | Apexnrg-Blue Electronic Apex Locator | Medicnrg, Ltd. | 2007 | 4 | — |
| +2 | K063843 | Apexnrg XFR | Medicnrg, Ltd. | 2007 | 5 | — |
| +2 | K053235 | NSK Precision Apex Locator (Pal) | Medicsense USA | 2006 | 0 | — |
| +2 | K022020 | Justwo Model Tme-601 Root Apex Locator | Toei Electric Co., Ltd. | 2002 | 15 | — |
| +3 | K090598 | Cariescan Pro | Cariescan, Ltd. | 2009 | 1 | — |
| +3 | K080113 | Apex Dal Electronic Apex Locator | Medicnrg, Ltd. | 2008 | 1 | — |
| +3 | K030526 | Pediguard Nerve Detector System | Spine Vision, Inc. | 2004 | 6 | — |
| +4 | K170822 | Electronic Caries Detector | Ortek Therapeutics, Inc. | 2017 | 0 | — |
| +4 | K143159 | Cannulated PediGuard Needle#1, Cannulated PediGuard Needle#2, Cannulated PediGuard… | Spineguard S.A. | 2015 | 4 | — |
| +4 | K123390 | Pediguard Nerve Detector System | Spineguard S.A. | 2013 | 5 | — |
| +4 | K101177 | Apexnrg Rider | Medicnrg, Ltd. | 2010 | 0 | — |
| +5 | K201454 | DSG Connect Technology | Spineguard S.A. | 2021 | 1 | — |
| +5 | K152747 | DSG Threaded Drill System | Spineguard S.A. | 2016 | 3 | — |
| +6 | K222106 | Waypoint GPS | Waypoint Orthopedics, Inc. | 2023 | 0 | — |
| +6 | K162884 | SpineGuard DSG Zavation Screw System | Spineguard S.A. | 2017 | 2 | — |