Cleared Traditional

VARIOSURG (K073678) - FDA 510(k) Clearance

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

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Jul 2008
Decision
195d
Days
Class 2
Risk

K073678 is an FDA 510(k) clearance for the VARIOSURG. Classified as Drill, Bone, Powered (product code DZI), Class II - Special Controls.

Submitted by Nakanishi, Inc. (Washington, US). The FDA issued a Cleared decision on July 10, 2008 after a review of 195 days - an extended review cycle.

This device falls under the Dental FDA review panel, regulated under 21 CFR 872.4120 - 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: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Dental review framework, consistent with the majority of Class II 510(k) submissions.

View all Nakanishi, Inc. devices

Submission Details

510(k) Number K073678 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received December 28, 2007
Decision Date July 10, 2008
Days to Decision 195 days
Submission Type Traditional
Review Panel Dental (DE)
Summary Statement
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
68d slower than avg
Panel avg: 127d · This submission: 195d
Pathway characteristics
Predicate-based equivalence. No clinical trials required.

Device Classification

Product Code DZI Drill, Bone, Powered
Device Class Class 2 - Special Controls
CFR Regulation 21 CFR 872.4120
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 - DZI Drill, Bone, Powered

All 47
Devices cleared under the same product code (DZI) and FDA review panel - the closest regulatory comparables to K073678.
VarioSurg 4
K254163 · Nakanishi, Inc. · Dec 2025
MT-Bone
K242432 · Mectron S.P.A. · Aug 2024
Surgical Drive System (Model: ES70, ES90, E8)
K240340 · Guangdong Jinme Medical Technology Co., Ltd. · Jul 2024
Guided Surgery Kit
K231087 · Implant Direct Sybron Manufacturing, LLC · Aug 2023
TRAUS SUS20
K192561 · Saeshin Precision Co., Ltd. · Jul 2020
Surgical Drills
K200265 · Implant Direct Sybron Manufacturing, LLC · Jun 2020