O-Ring

The FDA filing lists O-Ring as one of the ball abutment designs in the Preat Abutments system. Preat Abutments are intended for use with endosseous dental implants in the maxilla or…

Registry build 21.09.26

The FDA filing lists O-Ring as one of the ball abutment designs in the Preat Abutments system.

Preat Abutments are intended for use with endosseous dental implants in the maxilla or mandible to support single-unit or multi-unit prosthetic restorations.

Listed Item

BioHorizons®-compatible 3.5mm X 4.5mm Non-Engaging Titanium Base

Abutment Design

The summary describes the O-Ring as a ball configuration and states that the system also includes corresponding abutment screws. The subject abutment platform diameters range from 3.0 mm to 6.5 mm.

15manufacturers in China registered for this device type
78catalogue numbers in this listing
3510(k) clearances naming this product code
9recalls on this code

Who Else Makes It

Concentrated in Guangdong (11), Jiangsu (2), Shanghai (1). 10 of them are registered as contract manufacturers, able to build to a buyer’s own specification.

Chinese manufacturers registered for FDA product code NHA
Manufacturer City Province Registered as Device types
LX Precision Shanghai Co Ltd Shanghai Shanghai Contract manufacturer 19
Modern Dental Laboratory (DG) Co., Ltd. Dongguan Guangdong Contract manufacturer 15
Exceldent Dental Technology Development Co., Ltd. Zhuhai Guangdong Contract manufacturer 12
DTS Digital Dental LAB Shenzhen Guangdong Contract manufacturer 11
KTJ Medical Technology Co., Ltd. Shenzhen Guangdong Contract manufacturer 11
Shimmer Computerized Dental Technology Co., Ltd. Zhuhai Guangdong Contract manufacturer 10
Zhuhai Crystal Dental Technology Co., Ltd. Zhuhai Guangdong Contract manufacturer 9
NEW Perfect Dental LAB Shenzhen Guangdong Contract manufacturer 8
Shenzhen Jiahong Dental Technology Co., Ltd. Shenzhen Guangdong Contract manufacturer 7
Jiangsu Trausim Medical Instrument Co., Ltd. Changzhou Jiangsu Contract manufacturer 3
Chengdu Besmile Medical Technology Co., Ltd. Chengdu Sichuan Manufacturer 14
CBD Dental LAB, Inc Shenzhen Guangdong Manufacturer 11

Showing 12 of 15. All 15 manufacturers in China registered for Abutment, Implant, Dental, Endosseous

Record

Regulatory record for O-Ring
Listed by Preat Corporation, United States
FDA product code NHA
Device type Abutment, Implant, Dental, Endosseous
Device class Class 2
Regulation 21 CFR 872.3630
Establishment Specification developer, Repacker / relabeller, Complaint-file establishment, Manufacturer
510(k) K183518
Record published 2022-06-28
Record revised 2024-02-09 (version 7)

Specifications

Specifications
MRI safety MR Conditional
Sterilisation Moist Heat or Steam Sterilization
Single use Yes
Prescription Prescription only
Supplied as a kit Yes
Label carries lot or batch number, manufacturing date

Catalogue Numbers

Catalogue numbers for O-Ring
Catalogue number Size Status
1708004 In distribution
1600825 In distribution
1600821 In distribution
1700603 In distribution
1701402 In distribution
1705402 In distribution
1700601 In distribution
1705401 In distribution
1705602 In distribution
1700902 In distribution
1701406 In distribution
1700556 In distribution
1701201 In distribution
1708003 In distribution
1701505 In distribution
1600824 In distribution
1600823 In distribution
1705405 In distribution
1700575 In distribution
1701204 In distribution
1700503 In distribution
1700554 In distribution
1708001 In distribution
1701403 In distribution
1701404 In distribution
1700905 In distribution
1701601 In distribution
1701603 In distribution
1700402 In distribution
1700571 In distribution
1708006 In distribution
1700553 In distribution
1705604 In distribution
1705404 In distribution
1700576 In distribution
1701701 In distribution
1700500 In distribution
1700505 In distribution
8005459 In distribution
1701703 In distribution
1700602 In distribution
1705603 In distribution
1702101 In distribution
1700604 In distribution
1700574 In distribution
1701401 In distribution
1701503 In distribution
1708005 In distribution
1700903 In distribution
1700405 In distribution
1700506 In distribution
1701200 In distribution
1701203 In distribution
1705403 In distribution
1700403 In distribution
1702103 In distribution
1701504 In distribution
1700573 In distribution
1701500 In distribution
1705605 In distribution
1700901 In distribution
1702203 In distribution
1701405 In distribution
1700605 In distribution
1701501 In distribution
1700904 In distribution
1700401 In distribution
1701202 In distribution
1700404 In distribution
1700501 In distribution
1705606 In distribution
1700551 In distribution
1700552 In distribution
1700572 In distribution
1700400 In distribution
1800000 In distribution
1705406 In distribution
1702201 In distribution

Same Product Code

Other products under the same FDA product code
Product Sold by Catalogue numbers
MEDENTiKA Medentika GmbH 2,553
LW Vis Abutment Ossvis Co., Ltd. 2,520
Dess dental smart solutions Terrats Medical SL 1,715
Locator Zest Anchors, LLC 1,643
NobelProcera® Nobel Biocare AB 1,526
Azure Terrats Medical SL 1,360
Neodent Jjgc Indústria e Comércio de Materiais Dentários S.A. 1,308
LW Vis Abutment SET Ossvis Co., Ltd. 1,260
Abutment, Implant, Dental, Endosseous Southern Implants (PTY) Ltd 1,240
Healing Abutment Megagen Implant Co., Ltd. 1,218
Chaorum Implant System Medimecca Co Ltd 1,084
OT Equator Rhein 83 SRL 1,051

Showing 12 of 6,204. All products under Abutment, Implant, Dental, Endosseous

510(K) Clearances

FDA 510(k) clearances naming this product code
Clearance Decision date
K243824 2025-05-08
K220823 2022-10-26
K183518 2019-03-18

Recalls Naming This Product

3 recalls name this product by its own identifiers, the 510(k) it is cleared under.

Recalls naming the identifiers of O-Ring
Recalled by Identified by Initiated FDA class Root cause Reason Quantity
Preat Corporation 510(k) number 2025-06-25 Class II Process control Engaging titanium base was manufactured 180 degrees around the post from where it should be located in relation to the connection geometry; if the flat is on the wrong side of the post, the crown will not fit onto the abutment in the correc 11
Preat Corporation 510(k) number 2025-04-02 Class II Process control Due to manufacturing issues, abutment products were manufactured with screw seat located too high, which may cause the mating screw to have a shorter engagement length into the associated implant. 145 abutments
Preat Corporation 510(k) number 2024-02-09 Class II Process change control Due to a manufacturing issue, the screw seat location on the abutment product may be too high, causing mating screw to have a shorter engagement length into the associated implant. 561 units

Recalls

6 of these are Class II. Class II means a temporary or reversible health consequence. Volume alone is not a quality signal: a manufacturer that ships more recalls more.

Recalls referencing this product code
Initiated FDA class Root cause Reason Quantity
2025-06-24 Class II Employee error Due to manufacturing error, digital analog rotational feature is 180 degrees off. 44 units
2024-04-10 Class II Process control Due to incorrect milled titanium abutment being packaged and labeled. 7 abutmens
2023-07-18 Class II Process change control The healing abutments contain a dimensional condition that may lead to a gap between the healing abutment and the implant allowing for microleakage 13 units
2023-07-18 Class II Process change control The healing abutments contain a dimensional condition that may lead to a gap between the healing abutment and the implant allowing for microleakage 23 units
2023-07-18 Class II Process change control The healing abutments contain a dimensional condition that may lead to a gap between the healing abutment and the implant allowing for microleakage 4 units
2023-02-21 Class II Process design Engaging titanium base contains a dimensional condition that allows vertical movement of the titanium base after the prosthetic screw is torqued to the recommended value, which if undetected and installed on the implant, may lead to abutmen 26

Source: U.S. FDA establishment registration and device listing records, public domain. Restructured for clarity and searchability. Not affiliated with or endorsed by the FDA. Records are records: nothing here is an offer of sale.

Where China Actually Supplies

Every device page names the company that lists it and the factories registered to make the same thing. These are the sections with the most of them.

5,100manufacturers registered in China
2,581device types they are registered for
340,248device records, each naming its maker
31provinces with a registered manufacturer