510(k) Report

510(k) · Cleared

Cleared

SmarTooth

K231722510(k) TraditionalCleared May 1, 2024323-day reviewClass II21 CFR 872.1745

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

Smartooth Co., Ltd. · NBL Light-Induced Fluorescence Caries Detector

Cleared on May 1, 2024 as substantially equivalent to K051909 (Kavo America, 2005) after a 323-day review. Its family tree reaches back 2 generations to 2000.

Decided
May 1, 2024
Review
323 days
Class
Class II
Product code
NBL
Recalls
None
Predicates
1

Its longest line of descent runs back 2 generations to DEN990002 (2000). No later device cites it as a predicate yet.

DEN990002 · Kavo Diagnodent · Kavo America · 2000K051909 · Diagnodent · Kavo America · 2005200020052010201520202025
  1. Root · 2 generations backDEN990002 Kavo DiagnodentKavo America · 2000
  2. 1 generation backK051909 DiagnodentKavo America · 2005
  3. This deviceK231722 SmarToothSmartooth Co., Ltd. · 2024
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−2DEN990002Kavo DiagnodentKavo America2000—
−1K051909DiagnodentKavo America2005—
0 (this device)K231722SmarToothSmartooth Co., Ltd.2024—
FIG. 1 — Lineage of K231722, 2000–2024Source: 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 NBL? 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 NBL device

  1. #1 K252464 Surgical Microscope (OMS2360, OMS2380)score 12.4 · 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
*K051909Diagnodent
Summary page 6
…oint. Users can start the measurement by clicking the “Measure” button on the application screen. Predicate Device ● KaVo DIAGNOdent® 2190 (KaVo Dental Corporation K051909, 10/21/2005) - Common Name: Laser fluorescence caries detection device - Regulation Name: Dental Hand Instrument, Laser F…
Kavo America2005—

Also cleared against K051909: 2 other devices →

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 24 years and passes through 2 companies; a new generation was cleared every 18.5 years on median.
  • None of the 2 ancestors has a recall.
  • 2 other devices also cite its predicate K051909.

How does its category compare?

All NBL devices

NBL Light-Induced Fluorescence Caries Detector: FDA decisions, review times, recalls and adverse event reports over 20 years. 2024, this device’s year, is highlighted.

FDA decisions per year · NBL

1in 2025

2007: 12009: 22010: 22011: 12012: 22013: 12016: 12017: 12018: 12020: 12022: 12023: 12024: 22025: 12026 (partial year): 1
2007high 2 (2009) · low 0 (2008)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · NBL

Too few NBL 510(k)s in any year since 2007 to give a median.

Recalls per year · NBL

No recall names NBL since 2007.

Adverse event reports per year · NBL

1in 2020

2015: 12016: 12017: 12020: 1
2007high 1 (2015) · low 0 (2007)2025

MAUDE reports naming product code NBL, 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
20071—00
20080—00
20092—00
20102—00
20111—00
20122—00
20131—00
20140—00
20150—01
20161—01
20171—01
20181—00
20190—00
20201—01
20210—00
20221—00
20231—00
20242—00
20251—00
20261—0—

What is it indicated for?

For use as an aid in the diagnosis of dental caries

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K231722: SmarTooth.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K231722

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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