The II describes a revised thread, not a replacement product — Dentium continues to list both alongside Implantium, and all three share a prosthetic platform. SuperLine II has sharper, deeper threads with an increased pitch, which is the usual way manufacturers pursue primary stability in less dense bone.
Side by side
Rows appear only where at least one side has data. Where a value is not verified we say
so rather than leaving it blank.
Unalloyed commercially pure titanium grade 4, to ASTM F67Manufacturer-reported[1]
Commercially pure titanium grade 4, to ASTM F67Manufacturer-reported[3]
Surface
S.L.A. — sandblasted with large grit and acid-etchedManufacturer-reported[1]
S.L.A. — sandblasted with large grit and acid-etchedManufacturer-reported[3]
Connection
Internal hex within a conical connection, with one prosthetic platform, one abutment screw and one hex driver across all diametersManufacturer-reported[1]
Internal hex within a conical connection, with one connection and one abutment screw shared across all diameters and across SuperLine, SuperLine II and ImplantiumManufacturer-reported[3]
Available diameters
3.6, 4.0, 4.5, 5.0, 6.0 and 7.0 mmManufacturer-reported[1]
3.6, 4.0, 4.5, 5.0, 6.0 and 7.0 mmManufacturer-reported[3]
Unalloyed commercially pure titanium grade 4, to ASTM F67Manufacturer-reported[1]
Dentium SuperLine II
Commercially pure titanium grade 4, to ASTM F67Manufacturer-reported[3]
Surface
Dentium SuperLine
S.L.A. — sandblasted with large grit and acid-etchedManufacturer-reported[1]
Dentium SuperLine II
S.L.A. — sandblasted with large grit and acid-etchedManufacturer-reported[3]
Connection
Dentium SuperLine
Internal hex within a conical connection, with one prosthetic platform, one abutment screw and one hex driver across all diametersManufacturer-reported[1]
Dentium SuperLine II
Internal hex within a conical connection, with one connection and one abutment screw shared across all diameters and across SuperLine, SuperLine II and ImplantiumManufacturer-reported[3]
Available diameters
Dentium SuperLine
3.6, 4.0, 4.5, 5.0, 6.0 and 7.0 mmManufacturer-reported[1]
Dentium SuperLine II
3.6, 4.0, 4.5, 5.0, 6.0 and 7.0 mmManufacturer-reported[3]
Both are double-threaded tapered bone-level implants in commercially pure grade 4 titanium to ASTM F67, finished with the S.L.A. surface and using an internal hex within a conical connection. SuperLine II changes the thread geometry — sharper, deeper, wider pitch — and its apical flutes are described as three long cutting flutes running from apical to coronal, where SuperLine has three tapered apical flutes with a flat end.
Where they are alike
Diameters are identical at 3.6, 4.0, 4.5, 5.0, 6.0 and 7.0 mm. Material, surface and connection are unchanged. Dentium explicitly presents SuperLine, SuperLine II and Implantium alongside one another with interchangeable abutments and does not state that SuperLine II replaces SuperLine. That is worth stating plainly, because a version number normally implies obsolescence and here it does not.
Design
The one catalogue difference is at the short end: SuperLine II adds a 7 mm length to the 8, 10, 12 and 14 mm options both share. Everything else about the sizing is the same, which is consistent with a thread revision rather than a new system.
Prosthetic ecosystem
Because the connection is unchanged, a laboratory or clinician working on an older Dentium case will generally find the components still available — which is the practical reason this pair is worth understanding. The prosthetic platform is common across all diameters and across the three bone-level lines.
What may influence clinical selection
A sharper, deeper thread with a wider pitch is designed to find grip where bone is soft. In dense bone that same thread offers nothing extra and compresses more. So the sensible framing is that SuperLine II gives the surgeon another option for a specific problem, not that it supersedes the implant it is named after.
So which is better?
Neither is universally better, and any page telling you otherwise is selling something.
These are different designs with different trade-offs, and the right choice depends on the
bone available, the position in the mouth, the planned restoration, and what the treating
clinician is equipped and experienced to place and to service years from now.
That last point is easy to overlook and matters more than most specification
differences: components need to remain obtainable for as long as the implant is in place.
Regulatory record
US FDA 510(k) clearances held by each side, retrieved from the FDA's own database.
Clearances are held at brand level, so every system from the same brand shares this record.
Dentium SuperLine
via Dentium
11
FDA 510(k) clearances
2004 – 2022
Filed by Dentium Co., Ltd.
Dentium SuperLine II
via Dentium
11
FDA 510(k) clearances
2004 – 2022
Filed by Dentium Co., Ltd.
A clearance count is not a quality ranking, and the
larger number is not the better implant. A brand with more clearances usually
has a longer history or a broader component range. FDA "clearance" also is not FDA
"approval" — it means the device was accepted as substantially equivalent to one already
on the market, generally without a clinical trial. A blank here means we could not match
a filing with confidence, not that the brand lacks authorisation.
What these actually mean →
Sources
Numbers match the citations beside each claim above.
