CAMLOG SCREW-LINE

Also known as: CAMLOG SCREW-LINE Implant, SCREW-LINE

A CAMLOG implant in grade 4 titanium using the Tube-in-Tube connection, offered with a 1.4 mm machined shoulder (Promote) or a 0.4 mm machined shoulder (Promote plus).

Compare this implant

Quick facts

Current status	Current. CAMLOG publishes a SCREW-LINE work instruction and lists the CAMLOG implant system on its site.Manufacturer-reported[1][2]
Implant level	Manufacturer documentation not located(CAMLOG specifies a machined shoulder of 1.4 mm on the Promote version and 0.4 mm on the Promote plus version, but does not classify the implant by level.)
Body geometry	Screw implant with a machined shoulder measuring 1.4 mm on the CAMLOG SCREW-LINE Promote implant and 0.4 mm on the Promote plus implant.Manufacturer-reported[1]
Thread design	Self-cutting thread, with features that CAMLOG states induce self-centring during insertion, varying by length and diameter.Manufacturer-reported[1]
Apex design	Apical diameter ∅ 2.7 mm on the ∅ 3.3 mm implant, ∅ 3.5 mm on ∅ 3.8 mm, ∅ 3.9 mm on ∅ 4.3 mm, ∅ 4.6 mm on ∅ 5.0 mm and ∅ 5.5 mm on ∅ 6.0 mm.Manufacturer-reported[1]
Material	Titanium grade 4.Manufacturer-reported[1]
Surface	Promote — an abrasive-blasted, acid-etched surface — or Promote plus, which extends the treated surface further coronally, leaving only a 0.4 mm machined shoulder.Manufacturer-reported[1]
Connection	CAMLOG Tube-in-Tube — a 5.4 mm deep implant-abutment connection with an antirotational locking mechanism, using three symmetrically arranged grooves in a 1.9 mm deep cylindrical bore in the coronal region. Implants of ∅ 3.3 mm have only the lower inner thread.Manufacturer-reported[1]
Platform switching	Manufacturer documentation not located(The SCREW-LINE work instruction does not make a platform-switching claim; CAMLOG attributes integrated platform switching to the CONELOG line instead.)
Available diameters	∅ 3.3, 3.8, 4.3, 5.0 and 6.0 mm.Manufacturer-reported[1]
Available lengths	9, 11, 13 and 16 mm for ∅ 3.8, 4.3, 5.0 and 6.0 mm; 11, 13 and 16 mm for ∅ 3.3 mm.Manufacturer-reported[1]

Overview

CAMLOG SCREW-LINE is defined by its connection rather than its body: the Tube-in-Tube interface is a 5.4 mm deep cylindrical engagement with three grooves, which indexes the abutment mechanically instead of relying on a friction cone. That is the essential difference from CONELOG, the sister line, which replaces the same-shaped body with a 7.5° conical connection — the two share a great deal but their components do not interchange. Within SCREW-LINE the choice between Promote and Promote plus is really a choice about how much machined collar sits at the shoulder: 1.4 mm on the former, 0.4 mm on the latter. CAMLOG is unusually direct in its documentation about the ∅ 3.3 mm implant being mechanically weaker, which is a more useful statement than the general encouragement most manufacturers give around narrow implants.

Technology

Clinical positioning

What the manufacturer says this system is designed for. This is not the same thing as independent clinical evidence, which is set out separately below.

CAMLOG states that ∅ 3.3 mm implants are an alternative where space is restricted, and that their lower mechanical strength compared with larger diameters must be taken into account, particularly when they are not splinted to larger implants.Manufacturer-reported

Further detail

Narrow implant option	The ∅ 3.3 mm implant is the narrow option and carries only the lower inner thread of the Tube-in-Tube connection.Manufacturer-reported[1]

Clinical evidence

We have not yet completed a system-specific evidence review for CAMLOG SCREW-LINE. Insufficient system-specific evidence How we grade evidence

Similar implant systems

CONELOG PROGRESSIVE-LINE

Popular comparisons

CAMLOG SCREW-LINE vs CONELOG PROGRESSIVE-LINE

The clearances below are held by CAMLOG at brand level and cover its implant range, not CAMLOG SCREW-LINE specifically. We show them here because that is the level at which regulators actually issue them.

Regulatory record

Read this before drawing conclusions. A clearance or certificate means a device may legally be sold in a market. It is not a finding that the implant performs well, and it is not a comparison against other implants. In particular, FDA "clearance" is not FDA "approval" — clearance means the FDA accepted the device as substantially equivalent to one already on the market. What these actually mean →

Other1 record

Registered device establishment in Switzerland. Registration records where a device is made or handled; it is not a clearance, an approval, or any assessment of the product.

Number	Device	Holder	Date
3007283751	—	CAMLOG Biotechnologies GmbH	—

Clearance records for CAMLOG were retrieved from the issuing authority's own database, not from the manufacturer's marketing material. We attribute a clearance to a brand only when the filing holder belongs to that brand's corporate family — third-party clearances for compatible components are excluded, because they belong to the company that made the component, not to CAMLOG.

Sources

Numbers match the citations beside each claim above.

Primary sources

[1]CAMLOG® SCREW-LINE Implant — Basic Information, Surgical Procedures (J8000-0230) — CAMLOG Biotechnologies GmbH, 2017. Accessed 2026-07-21.
[2]CAMLOG Implant System — Surgery — CAMLOG Biotechnologies GmbH. Accessed 2026-07-21.