510(k) · Cleared

Cleared

Lifecore O-Ring Abutment;Lifecore Dalla Bona Abutment

K970776510(k) TraditionalCleared May 27, 199784-day reviewClass II21 CFR 872.3640

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

Lifecore Biomedical, Inc. · DZE Implant, Endosseous, Root-Form

Cleared on May 27, 1997 as substantially equivalent to K921764 (Implant Support Systems, Inc., 1992) and 1 other predicate after an 84-day review. Its family tree reaches back 1 generation to 1992.

Decided: May 27, 1997
Review: 84 days
Class: Class II
Product code: DZE
Recalls: None
Predicates: 2

Its longest line of descent runs back 1 generation to K921764 (1992). 2 ancestors in all. No later device cites it as a predicate yet.

By dateBy generation

Root · 1 generation backK921764 Dalla Bona Ball & Sockey Attach. Snap Type PrecisImplant Support Systems, Inc. · 1992
This deviceK970776 Lifecore O-Ring Abutment;Lifecore Dalla Bona AbutmentLifecore Biomedical, Inc. · 1997

View FIG. 1 as a table

Line of descent and top descendants

Generation	Number	Device	Applicant	Decided	Recalls
−1	K921764	Dalla Bona Ball & Sockey Attach. Snap Type Precis	Implant Support Systems, Inc.	1992	—
0 (this device)	K970776	Lifecore O-Ring Abutment;Lifecore Dalla Bona Abutment	Lifecore Biomedical, Inc.	1997	—

Other ancestors by year cleared

Year cleared	Devices	With a Class I recall
1993	1	0

FIG. 1 — Lineage of K970776, 1992–1997Source: FDA 510(k) summaries, read by 510(k) Report · How lineage is built

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 DZE? 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 DZE device

#1 K211090 ZENEX Implant Systemscore 25.4 · 15 generations · no Class I recall
#2 Held for the reportin the report
#3 Held for the reportin the report

Get a 510(k) Report

What was it cleared against? (2)

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	Applicant	Decided	Recalls
*	K921764	Dalla Bona Ball & Sockey Attach. Snap Type Precis Summary page 1 …r 21 CFR 872.3165). 3. ’équivalent Device: The device is substantially equivalent to the commercially marketed products known as Lifecore Overdenture Abutments Systems (K921764, K924190). 4. Device Description: The abutment is designed for use with an endosseous implant which is implanted in the lower or…	Implant Support Systems, Inc.	1992	—
*	K924190	Iss O-Ring Attachment Summary page 1 …872.3165). 3. ’équivalent Device: The device is substantially equivalent to the commercially marketed products known as Lifecore Overdenture Abutments Systems (K921764, K924190). 4. Device Description: The abutment is designed for use with an endosseous implant which is implanted in the lower or upper ja…	Implant Support Systems, Inc.	1993	—

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?

None of the 2 ancestors has a recall.

How does its category compare?

All DZE devices

DZE Implant, Endosseous, Root-Form: FDA decisions, review times, recalls and adverse event reports over 20 years.

FDA decisions per year · DZE

31in 2025

2007high 61 (2008) · low 26 (2011)2026

2026 to Oct 25, outlined.

Median 510(k) review, days · DZE

184in 2025

2007high 265 (2014) · low 107 (2007)2026

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

Recalls per year · DZE

1in 2025

2007high 15 (2016) · low 0 (2011)2026

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

Adverse event reports per year · DZE

465,788in 2025

2007high 537,585 (2023) · low 164 (2009)2025

MAUDE reports naming product code DZE, 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	43	107	11	225
2008	61	118	4	393
2009	41	110	3	164
2010	34	162	3	360
2011	26	194	0	362
2012	39	174	11	358
2013	42	195	1	391
2014	36	265	7	1,124
2015	36	215	3	2,894
2016	40	219	15	1,116
2017	48	223	4	9,719
2018	41	200	4	12,892
2019	31	231	8	167,016
2020	41	230	0	255,524
2021	34	182	6	479,618
2022	34	243	0	483,224
2023	35	248	0	537,585
2024	40	222	1	473,629
2025	31	184	1	465,788
2026	15	194	2	—

What is it indicated for?

The Lifecore Sustain and Restore Dental Implant Systems are intended for use in either partially or fully edentulous mandibles or maxillae in the following areas:

Support of fixed (cemented) restorations utilizing multiple abutments;

Support of fixed detachable (screw retained) prosthetics utilizing multiple abutments;

Overdenture retention by means of a ball overdenture attachment, o-ring attachment, dalla bona or hader bar;

Terminal or intermediate abutment support for fixed bridgework;

Free standing restorations without involvement of adjacent dentition.

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/K970776 · printed Nov 6, 2026

Cite this page

510(k) Report. “K970776: Lifecore O-Ring Abutment;Lifecore Dalla Bona Abutment.” Lineage record from FDA 510(k) data and the FDA summary. Updated Nov 3, 2026. Accessed Nov 6, 2026. https://510kreport.com/device/K970776

Report an extraction error

Are you the manufacturer?

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