510(k) · Cleared
ClearedEzDent-i; E2; ProraView
Data to Oct 25, 2026 (FDA decisions) Oct 12, 2026 (recalls) Sep 30, 2026 (MAUDE) refreshed weekly
Ewoosoft Co., Ltd. · LLZ System, Image Processing, Radiological
Cleared on Jan 12, 2017 as substantially equivalent to K161117 (Ewoosoft Co., Ltd., 2016) after a 27-day review. Its family tree reaches back 8 generations to 1993. 11 later devices descend from it.
- Decided
- Jan 12, 2017
- Review
- 27 days
- Class
- Class II
- Product code
- LLZ
- Recalls
- None
- Predicates
- 1
Its longest line of descent runs back 8 generations to K930527 (1993). 11 later devices descend from it, 1 citing it directly.
- Root · 8 generations backK930527 Dental LinkEscan, Inc. · 1993
- 7 generations backK955237 Tigerscan/TigerviewTau Corp. · 1996
- 6 generations backK012439 Dentaleye 2 Dental Image Management SystemRadco Data AB · 2002
- 5 generations backK050744 Kavo Ergocom/ErgocamKavo America Corporation · 2005
- 4 generations backK060178 Vix Win ProGendex Dental Systems · 2006 · Recalled
- 3 generations backK131594 Ezdenti-I; E2; Prora ViewEwoosoft Co., Ltd. · 2013
- 2 generations backK150747 EzDent-i /E2/Prora ViewLK Consulting Group USA, Inc. · 2015
- 1 generation backK161117 EzDent-i / E2 / Prora ViewEwoosoft Co., Ltd. · 2016
- This deviceK163533 EzDent-i; E2; ProraViewEwoosoft Co., Ltd. · 2017
- Descendant · cites it directly · 10 of its ownK172364 EzDent-i / E2 / Prora ViewEwoosoft Co., Ltd. · 2017
- Descendant · 2 generations on · 9 of its ownK190087 EzDent-i / E2 / Prora ViewEwoosoft Co., Ltd. · 2019
- Descendant · 3 generations on · 8 of its ownK202116 EzDent-i/ E2/ Prora View/ Smart M ViewerEwoosoft Co., Ltd. · 2020
- Descendant · 4 generations on · 4 of its ownK211795 EzDent-i/ E2/ Prora View/ Smart M ViewerEwoosoft Co., Ltd. · 2021
- Descendant · 5 generations on · 3 of its ownK222145 EzDent-i / E2 / Prora View/ Smart M ViewerEwoosoft Co., Ltd. · 2022
Showing 5 of 11 descendants. See all descendants
Descendants cleared per year
Most influential descendants
Showing 5 of 11 · See all- K172364EzDent-i / E2 / Prora ViewEwoosoft Co., Ltd. · 2017 · cites it directly10descendants
- K190087EzDent-i / E2 / Prora ViewEwoosoft Co., Ltd. · 2019 · 2 generations on9descendants
- K202116EzDent-i/ E2/ Prora View/ Smart M ViewerEwoosoft Co., Ltd. · 2020 · 3 generations on8descendants
- K211795EzDent-i/ E2/ Prora View/ Smart M ViewerEwoosoft Co., Ltd. · 2021 · 4 generations on4descendants
- K222145EzDent-i / E2 / Prora View/ Smart M ViewerEwoosoft Co., Ltd. · 2022 · 5 generations on3descendants
View FIG. 1 as a table
Line of descent and top descendants
| Generation | Number | Device | Applicant | Decided | Recalls |
|---|---|---|---|---|---|
| −8 | K930527 | Dental Link | Escan, Inc. | 1993 | — |
| −7 | K955237 | Tigerscan/Tigerview | Tau Corp. | 1996 | — |
| −6 | K012439 | Dentaleye 2 Dental Image Management System | Radco Data AB | 2002 | — |
| −5 | K050744 | Kavo Ergocom/Ergocam | Kavo America Corporation | 2005 | — |
| −4 | K060178 | Vix Win Pro | Gendex Dental Systems | 2006 | 1 |
| −3 | K131594 | Ezdenti-I; E2; Prora View | Ewoosoft Co., Ltd. | 2013 | — |
| −2 | K150747 | EzDent-i /E2/Prora View | LK Consulting Group USA, Inc. | 2015 | — |
| −1 | K161117 | EzDent-i / E2 / Prora View | Ewoosoft Co., Ltd. | 2016 | — |
| 0 (this device) | K163533 | EzDent-i; E2; ProraView | Ewoosoft Co., Ltd. | 2017 | — |
| +1 | K172364 | EzDent-i / E2 / Prora View | Ewoosoft Co., Ltd. | 2017 | — |
| +2 | K190087 | EzDent-i / E2 / Prora View | Ewoosoft Co., Ltd. | 2019 | — |
| +3 | K202116 | EzDent-i/ E2/ Prora View/ Smart M Viewer | Ewoosoft Co., Ltd. | 2020 | — |
| +4 | K211795 | EzDent-i/ E2/ Prora View/ Smart M Viewer | Ewoosoft Co., Ltd. | 2021 | — |
| +5 | K222145 | EzDent-i / E2 / Prora View/ Smart M Viewer | Ewoosoft Co., Ltd. | 2022 | — |
Descendants by year cleared
| Year cleared | Devices | With a Class I recall |
|---|---|---|
| 2017 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 2 | 0 |
| 2022 | 1 | 0 |
| 2023 | 2 | 0 |
| 2024 | 1 | 0 |
| 2025 | 2 | 0 |
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 LLZ? 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 LLZ device
- #1 K230955 syngo Application Softwarescore 21.5 · 11 generations · no Class I recall
- #2 Held for the reportin the report
- #3 Held for the reportin the report
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.
| Type | Number | Device | Decided |
|---|---|---|---|
| * | K161117 | EzDent-i / E2 / Prora ViewSummary page 5…e 2D image files, and load DICOM project files from panorama, cephalometric, and intra-oral imaging equipment. 3UHGLFDWH'HYLFH EzDent-i; E2; ProraView (K161117) by EWOO SOFT Co., Ltd. Page 19 of 67 6XEVWDQWLDO(TXLYDOHQFH … | 2016 |
What descends from it? (11)
See all 111 later device cites it directly; ranked here by how many devices descend from each in turn.
| Number | Device | Decided | Descendants |
|---|---|---|---|
| K172364 | EzDent-i / E2 / Prora View | 2017 | 10 |
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 7 companies; a new generation was cleared every 2.8 years on median.
- 1 of the 8 ancestors has a recall of any class.
- Of its descendants, K172364 (Ewoosoft Co., Ltd., 2017) has gone furthest, with 10 descendants of its own.
How does its category compare?
All LLZ devicesLLZ System, Image Processing, Radiological: FDA decisions, review times, recalls and adverse event reports over 20 years. 2017, this device’s year, is highlighted.
FDA decisions per year · LLZ
58in 2025
2026 to Oct 25, outlined.
Median 510(k) review, days · LLZ
173in 2025
Receipt to decision; years with fewer than 3 clearances left blank.
Recalls per year · LLZ
11in 2025
Class I (0 since 2007) Class II/III not classified
Adverse event reports per year · LLZ
116in 2025
MAUDE reports naming product code LLZ, not matched to any one device; reports are not rates.
View these four charts as a table
| Year | Decisions | Median 510(k) review, days | Recalls (Class I) | MAUDE reports |
|---|---|---|---|---|
| 2007 | 76 | 36 | 20 | 152 |
| 2008 | 94 | 52 | 32 | 154 |
| 2009 | 70 | 62 | 21 | 145 |
| 2010 | 51 | 98 | 17 | 145 |
| 2011 | 106 | 79 | 30 | 454 |
| 2012 | 82 | 87 | 12 | 266 |
| 2013 | 95 | 84 | 64 | 1,130 |
| 2014 | 78 | 89 | 6 | 15,631 |
| 2015 | 64 | 90 | 16 | 211 |
| 2016 | 82 | 90 | 12 | 290 |
| 2017 | 78 | 107 | 5 | 104 |
| 2018 | 104 | 105 | 7 | 72 |
| 2019 | 74 | 107 | 2 | 88 |
| 2020 | 81 | 115 | 6 | 82 |
| 2021 | 83 | 116 | 3 | 70 |
| 2022 | 65 | 137 | 4 | 28 |
| 2023 | 87 | 157 | 8 | 26 |
| 2024 | 62 | 131 | 6 | 42 |
| 2025 | 58 | 173 | 11 | 116 |
| 2026 | 45 | 110 | 14 | — |
What is it indicated for?
EzDent-i is dental imaging software that is intended to provide diagnostic tools for maxillofacial radiographic imaging. These tools are available to view and interpret a series of DICOM compliant dental radiology images and are meant to be used by trained medical professionals such as radiologist and dentist.
EzDent-i is intended for use as software to acquire, view, save 2D image files, and load DICOM project files from panorama, cephalometric, and intra-oral imaging equipment.
Indications for use read by OCR from a scanned FDA summary, so letters may be misread. Check the PDF before quoting it.
https://510kreport.com/device/K163533 · printed Nov 5, 2026
Cite this page
510(k) Report. “K163533: EzDent-i; E2; ProraView.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 5, 2026. https://510kreport.com/device/K163533
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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