Cleared Traditional

K173570 - SD Abutment (FDA 510(k) Clearance)

Class II Dental device cleared through predicate-based substantial equivalence - typically does not require clinical trials.

May 2019
Decision
543d
Days
Class 2
Risk

K173570 is an FDA 510(k) clearance for the SD Abutment. Classified as Abutment, Implant, Dental, Endosseous within the NHA classification (a category for dental implant abutments and prosthetic components), Class II - Special Controls.

Submitted by Surgident Co., Ltd. (Seongnam-Si, KR). The FDA issued a Cleared decision on May 17, 2019 after a review of 543 days - an unusually long review period, suggesting complex equivalence evaluation.

This device falls under the Dental FDA review panel, regulated under 21 CFR 872.3630 - the FDA dental device regulatory framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: High-complexity regulatory submission. Elevated predicate reliance profile. The extended review timeline suggests the FDA required additional documentation before confirming substantial equivalence - a pattern common in complex or first-of-kind Dental submissions.

Submission Details

510(k) Number K173570 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received November 20, 2017
Decision Date May 17, 2019
Days to Decision 543 days
Submission Type Traditional
Review Panel Dental (DE)
Summary Summary PDF
Regulatory Context
Review time vs. panel average
385d slower than avg
Panel avg: 158d · This submission: 543d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code NHA Abutment, Implant, Dental, Endosseous
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 872.3630
Definition To Be Used In Conjunction With An Endosseous Dental Implant Fixture To Aid In Prosthetic Rehabilitation.
What this classification means

Class II devices require demonstration of substantial equivalence to a legally marketed predicate device. This pathway does not require clinical trials - it relies on engineering equivalence and performance data. Most Dental devices follow this clearance model.

Regulatory Peers - NHA Abutment, Implant, Dental, Endosseous

All 105
Devices cleared under the same product code (NHA) and FDA review panel - the closest regulatory comparables to K173570.
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EK MULTI ANGLED 30 ABUTMENT
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K253253 · Implant Protesis Dental 2004, S.L. · Jan 2026
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K253315 · Institut Straumann AG · Jan 2026