510(k) Report

510(k) · Cleared

Cleared

Scaletron Piezo Ultrasound Scaler

K033120510(k) TraditionalCleared Jan 29, 2004121-day reviewClass II21 CFR 872.4850

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

Pac-Dent International (Suzhou), Ltd. · ELC Scaler, Ultrasonic

Cleared on Jan 29, 2004 as substantially equivalent to K014238 (Deldent, Ltd., 2002) after a 121-day review. Its family tree reaches back 1 generation to 2002.

Decided
Jan 29, 2004
Review
121 days
Class
Class II
Product code
ELC
Recalls
None
Predicates
1

Its longest line of descent runs back 1 generation to K014238 (2002). No later device cites it as a predicate yet.

K014238 · Delsonic 2000 · Deldent, Ltd. · 20022000200220042006
K014238 · Delsonic 2000 · Deldent, Ltd. · 20020
  1. Root · 1 generation backK014238 Delsonic 2000Deldent, Ltd. · 2002
  2. This deviceK033120 Scaletron Piezo Ultrasound ScalerPac-Dent International (Suzhou), Ltd. · 2004
View FIG. 1 as a table

Line of descent and top descendants

GenerationNumberDeviceApplicantDecidedRecalls
−1K014238Delsonic 2000Deldent, Ltd.2002—
0 (this device)K033120Scaletron Piezo Ultrasound ScalerPac-Dent International (Suzhou), Ltd.2004—
FIG. 1 — Lineage of K033120, 2002–2004Source: 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 ELC? 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 ELC device

  1. #1 K260773 Varios Combi Pro2score 12.5 · 6 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
*K014238Delsonic 2000
Summary page 2
…ces in the United States. ScaletronTM Piezo Ultrasonic Scaler functions in a same manner and is intended for the same use as the Delsonic 2000TM Piezo Ultrasonic Scaler (K014238) designed by Deldent Ltd. 11 DEPART…
Deldent, Ltd.2002—

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?

  • Its one ancestor has no recall.

How does its category compare?

All ELC devices

ELC Scaler, Ultrasonic: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · ELC

2in 2025

2007: 62008: 42009: 42010: 42011: 32012: 12013: 132014: 62015: 52016: 32017: 22018: 12019: 42020: 12021: 32022: 22023: 52024: 42025: 22026 (partial year): 2
2007high 13 (2013) · low 1 (2012)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · ELC

104in 2024

2007: 92 days median2008: 216 days median2009: 121 days median2010: 201 days median2011: 122 days median2013: 174 days median2014: 193 days median2015: 150 days median2016: 88 days median2019: 192 days median2021: 196 days median2023: 258 days median2024: 104 days median
2007high 258 (2023) · low 88 (2016)2026

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

Recalls per year · ELC

2in 2022

2022: 2
2007high 2 (2022) · low 0 (2007)2026

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

Adverse event reports per year · ELC

284in 2025

2007: 122008: 582009: 1082010: 792011: 52012: 32013: 62014: 372015: 1352016: 1692017: 3562018: 2892019: 3022020: 1642021: 1662022: 1652023: 2102024: 2192025: 284
2007high 356 (2017) · low 3 (2012)2025

MAUDE reports naming product code ELC, 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
2007692012
20084216058
200941210108
20104201079
2011312205
20121—03
20131317406
20146193037
201551500135
20163880169
20172—0356
20181—0289
201941920302
20201—0164
202131960166
20222—2165
202352580210
202441040219
20252—0284
20262—0—

What is it indicated for?

The ScaletronTM is a Piezo Ultrasonic Scaler intended for use in fast and reliable removal of light to heavy calculus deposits and stains from teeth.

Indications for use as stated in the FDA summary.

Cite this page

510(k) Report. “K033120: Scaletron Piezo Ultrasound Scaler.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 3, 2026. https://510kreport.com/device/K033120

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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