510(k) Report

510(k) · Cleared

Cleared

Star E900 Electric System

K251701510(k) TraditionalCleared Jan 12, 2026224-day reviewClass I21 CFR 872.4200

Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly, last Nov 3, 2026

Dentalez, Inc., Stardental Division · EBW Controller, Foot, Handpiece And Cord

Cleared on Jan 12, 2026 as substantially equivalent to K163402 (Nakanishi, Inc., 2017) after a 224-day review. Its family tree reaches back 6 generations to 1997.

Decided
Jan 12, 2026
Review
224 days
Class
Class I
Product code
EBW
Recalls
None
Predicates
1

Its longest line of descent runs back 6 generations to K970339 (1997). 18 ancestors in all, the oldest K964860 (1997). No later device cites it as a predicate yet.

  1. Root · 6 generations backK970339 Tri Auto ZXJ. Morita USA, Inc. · 1997
  2. 5 generations backK022147 Denta PortJ. Morita USA, Inc. · 2002
  3. 4 generations backK031204 Dentaport ZXJ. Morita USA, Inc. · 2003
  4. 3 generations backK042822 TCM Endo V, Model 1534Nouvag AG · 2004
  5. 2 generations backK150750 Endo 6:1, T1 Line Endo 6 L, SIRONiTi Apex, T1 SpraySirona Dental Systems GmbH · 2015
  6. 1 generation backK163402 NLZ Motor SystemNakanishi, Inc. · 2017
  7. This deviceK251701 Star E900 Electric SystemDentalez, Inc., Stardental Division · 2026
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−6K970339Tri Auto ZXJ. Morita USA, Inc.1997—
−5K022147Denta PortJ. Morita USA, Inc.2002—
−4K031204Dentaport ZXJ. Morita USA, Inc.2003—
−3K042822TCM Endo V, Model 1534Nouvag AG2004—
−2K150750Endo 6:1, T1 Line Endo 6 L, SIRONiTi Apex, T1 SpraySirona Dental Systems GmbH2015—
−1K163402NLZ Motor SystemNakanishi, Inc.2017—
0 (this device)K251701Star E900 Electric SystemDentalez, Inc., Stardental Division2026—

Other ancestors by year cleared

Year clearedDevicesWith a Class I recall
199710
199910
200110
200310
200410
200510
200940
201110
201210
FIG. 1 — Lineage of K251701, 1997–2026Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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Notable FDA decisions, review times and new Class I recalls. See an issue.

Sources: FDA 510(k) database (decision fields), the FDA summary (predicates and indications), FDA recall and enforcement reports, and MAUDE; processed by 510(k) Report. Verify on FDA.gov · Methodology and accuracy.

Planning a device in EBW? A 510(k) Report weighs predicate choices, recall history and review times for a new device like this one.

Top candidate predicates for a new EBW device

  1. #1 K251811 Motor and Apex Module (MaAM)score 12.0 · 8 generations · no Class I recall
  2. #2 Held for the reportin the report
  3. #3 Held for the reportin the report
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What was it cleared against? (1)

Devices the submitter claimed this one is substantially equivalent to (*), and reference devices cited for a specific test or feature (†), as written in the FDA summary.

TypeNumberDeviceApplicantDecidedRecalls
*K163402NLZ Motor System
Summary page 5
…R 872.4200 Regulation Name: Dental Handpiece and Accessories Regulatory Class: Class I Product Code: EBW III. PREDICATE DEVICE Clearance: K163402 dated August 31, 2017 Manufacturer: Nakanishi, Inc. Trade/Device Name: NLZ Motor System Common Name: Co…
Nakanishi, Inc.2017—
†K240183Star E900 Handpiece SeriesDentalez, Inc., Stardental Division2024—

What descends from it?

No later submission names this one as a predicate yet.

Has anything in its family been recalled? (0 Class I)

No FDA recall names this device.

No ancestor or descendant has a Class I recall.

What does this lineage say?

  • The line of descent spans 29 years and passes through 5 companies; a new generation was cleared every 5.5 years on median.
  • None of the 18 ancestors has a recall.

How does its category compare?

All EBW devices

EBW Controller, Foot, Handpiece And Cord: FDA decisions, review times, recalls and adverse event reports over 20 years. 2026, this device’s year, is highlighted.

FDA decisions per year · EBW

3in 2025

2009: 52010: 12011: 32012: 12013: 12014: 32015: 12016: 12017: 42018: 12019: 22020: 12021: 22022: 62024: 42025: 32026 (partial year): 3
2007high 6 (2022) · low 0 (2007)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · EBW

220in 2025

2009: 112 days median2011: 226 days median2014: 189 days median2017: 227 days median2022: 479 days median2024: 268 days median2025: 220 days median2026 (partial year): 269 days median
2007high 479 (2022) · low 112 (2009)2026

Receipt to decision; years with fewer than 3 clearances left blank.

Recalls per year · EBW

1in 2013

2013: 1
2007high 1 (2013) · low 0 (2007)2026

Class I (0 since 2007) Class II/III not classified

Adverse event reports per year · EBW

13in 2025

2009: 162010: 182011: 12012: 52013: 12014: 42015: 132016: 62017: 132018: 462019: 552020: 712021: 572022: 312023: 172024: 142025: 13
2007high 71 (2020) · low 0 (2007)2025

MAUDE reports naming product code EBW, not matched to any one device; reports are not rates.

View these four charts as a table
YearDecisionsMedian 510(k) review, daysRecalls (Class I)MAUDE reports
20070—00
20080—00
20095112016
20101—018
2011322601
20121—05
20131—11
2014318904
20151—013
20161—06
20174227013
20181—046
20192—055
20201—071
20212—057
20226479031
20230—017
20244268014
20253220013
202632690—

What is it indicated for?

The Star E900 Electric System is intended for use by dental professionals in the performance of dental restoration, prophylaxis and endodontic procedures.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K251701: Star E900 Electric System.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K251701

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Record history
  • FDA decision record loaded May 2, 2026
  • Summary read Oct 13, 2026 (extraction version 9eaa42aa01ed)
  • Lineage and recalls computed Nov 3, 2026
  • Page last updated Nov 3, 2026