510(k) Report

510(k) · Cleared

Cleared

Concentrix MX-AC High-Speed Handpiece

K173465510(k) TraditionalCleared Mar 28, 2018140-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. · EFB Handpiece, Air-Powered, Dental

Cleared on Mar 28, 2018 as substantially equivalent to K113301 (Dentalez, Inc., 2012) after a 140-day review. Its family tree reaches back 2 generations to 1996.

Decided
Mar 28, 2018
Review
140 days
Class
Class I
Product code
EFB
Recalls
None
Predicates
1

Its longest line of descent runs back 2 generations to K960719 (1996). No later device cites it as a predicate yet.

  1. Root · 2 generations backK960719 Star Dental 430 Series High Speed HandpieceDentalez Group · 1996 · Recalled
  2. 1 generation backK113301 Concenpiece,High-Speed Handpiece SeriesDentalez, Inc. · 2012
  3. This deviceK173465 Concentrix MX-AC High-Speed HandpieceDentalez, Inc. · 2018
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−2K960719Star Dental 430 Series High Speed HandpieceDentalez Group19961
−1K113301Concenpiece,High-Speed Handpiece SeriesDentalez, Inc.2012—
0 (this device)K173465Concentrix MX-AC High-Speed HandpieceDentalez, Inc.2018—
FIG. 1 — Lineage of K173465, 1996–2018Source: 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 EFB? 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 EFB device

  1. #1 K262144 DIAMED Handpiece;DIAMED Airmotor;DIAMED…score 13.3 · 5 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
*K113301Concenpiece,High-Speed Handpiece Series
Summary page 4
…uct Code: EFB III. PREDICATE DEVICE Primary Predicate: Concentrix High‐ Speed Handpiece Series ‐ Concentrix MX, Concentrix PX Concentrix FX and Concentrix SX (K113301) as manufactured by StarDental Reference Device: Lube Free Autochuck Turbine with Vortex Air Seal for Use with StarDental…
Dentalez, Inc.2012—
†K982593Lube Free Autochuck Turbine with Vortex Air Seal for Use with Star Dental 430 Series…Dentalez Group1998—

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 22 years and passes through 2 companies; a new generation was cleared every 15.8 years on median.
  • 1 of the 2 ancestors has a recall of any class.

How does its category compare?

All EFB devices

EFB Handpiece, Air-Powered, Dental: FDA decisions, review times, recalls and adverse event reports over 20 years. 2018, this device’s year, is highlighted.

FDA decisions per year · EFB

1in 2025

2007: 122008: 72009: 112010: 82011: 42012: 82013: 32014: 72015: 72016: 32017: 72018: 32019: 32020: 52021: 22022: 52023: 42024: 52025: 12026 (partial year): 4
2007high 12 (2007) · low 1 (2025)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · EFB

209in 2024

2007: 61 days median2008: 97 days median2009: 120 days median2010: 116 days median2011: 168 days median2012: 130 days median2013: 207 days median2014: 200 days median2015: 296 days median2016: 205 days median2017: 246 days median2018: 210 days median2019: 348 days median2020: 259 days median2022: 430 days median2023: 158 days median2024: 209 days median2026 (partial year): 252 days median
2007high 430 (2022) · low 61 (2007)2026

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

Recalls per year · EFB

No recall names EFB since 2007.

Adverse event reports per year · EFB

83in 2025

2007: 132008: 192009: 402010: 782011: 962012: 972013: 612014: 732015: 872016: 1222017: 1532018: 812019: 1172020: 942021: 1232022: 1572023: 1162024: 1042025: 83
2007high 157 (2022) · low 13 (2007)2025

MAUDE reports naming product code EFB, 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
20071261013
2008797019
200911120040
20108116078
20114168096
20128130097
20133207061
20147200073
20157296087
201632050122
201772460153
20183210081
201933480117
20205259094
20212—0123
202254300157
202341580116
202452090104
20251—083
202642520—

What is it indicated for?

The Concentrix MX-AC High-Speed Handpiece is used by trained dental professionals for a variety of procedures including but not limited to caries and amalgam removal, restorative work and crown preparations.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K173465: Concentrix MX-AC High-Speed Handpiece.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K173465

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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