Hiossen Dental Implants
Hiossen publishes more specific numbers about its surface than most manufacturers, a 45 % larger surface area, 20 % faster healing, loading as early as six weeks. Specific claims are easier to evaluate than vague ones, so this page takes them at face value and then examines what they are measured against.
At a glance
- Signature surface
- SA, sandblasted and acid-etched
- Connection
- 11° Morse taper, self-sealing
- Platform switching
- Yes, abutment narrower than implant
- Price tier
- Mid to value
- Range
- Unusually broad, including overdenture and narrow systems
- Best known for
- ET III SA
Who Hiossen is
Hiossen is the North American arm of Osstem Implant, a South Korean manufacturer that is among the largest implant producers in the world by unit volume. Hiossen was established in the United States in 2006 and runs an active clinical education programme for dentists, which is a significant part of how the system spreads.
The SA surface, and what its numbers are measured against
Hiossen states plainly what SA means: sandblasted and acid etched. The company reports that compared with traditional RBM surface treatment, its SA surface shows a 45 % improvement in available surface area, a substantial quickening of the gene expression, cell differentiation and proliferation central to osseointegration, 20 % faster bone healing, and loading as early as six weeks after placement.
Every one of those figures is measured against RBM, resorbable blast media, an older surface technology. That is a fair and clearly stated comparison, and Hiossen deserves credit for naming its baseline, which many manufacturers do not. But it is not a comparison against a modern competitor's current surface. Sandblasted-and-acid-etched surfaces are the industry standard today; Straumann's SLA, for instance, is the same category of treatment. So "45 % more surface area than RBM" tells you SA is a modern surface. It does not tell you SA outperforms other modern surfaces, and it is not evidence of that.
The connection design
The ET III SA uses an 11° Morse taper connection. Hiossen states this is self-sealing, that the hermetic seal minimises micro-movement and reduces percolation of saliva and bacteria, and that a slightly smaller abutment diameter keeps the interface away from the bone.
This is platform switching, and it is worth understanding because nearly every manufacturer now does it. The junction between implant and abutment is a microscopic seam that bacteria can colonise, and bone tends to retreat from it. By making the abutment narrower than the implant top, that seam is moved inward, away from the surrounding bone. It is a small design change with a well-documented effect on preserving bone at the implant's neck, and it is one of the genuine advances of the last two decades rather than a marketing term.
Published specifications
| Fixture | Diameters | Internal connection | Abutment colour code |
|---|---|---|---|
| Mini | ∅ 3.5 mm | 2.1 mm | Yellow only |
| Regular | ∅ 4.0, 4.5, 5.0 mm | 2.5 mm | Green |
| Ultra Wide (UW) | ∅ 6.0, 7.0 mm | Pre-mounted only |
Note the constraint in the last column. Mini fixtures at ∅ 3.5 mm have a 2.1 mm internal connection and accept only yellow colour-coded abutments; regular fixtures have a 2.5 mm connection and take green-coded parts. This is exactly the kind of detail that matters years later when a crown needs replacing, and exactly the kind that gets lost if nobody writes it down.
The Hiossen system lineup
Hiossen's range is unusually broad for a mid-tier manufacturer, covering standard implants, narrow implants and dedicated denture-stabilisation systems.
ET III SA
Hiossen's principal system. Tapered and self-tapping, with a self-sealing Morse taper connection and the SA surface.
ET III NH
A variant within the ET III family documented in its own product literature.
ET IV
The later generation of the ET line, with its own surgical documentation.
SS System
A separate Hiossen platform with its own full surgical manual and component range.
MS System
Hiossen's narrow-diameter system, typically used for denture stabilisation and restricted spaces.
LODI
A dedicated locator overdenture implant system for stabilising removable dentures.
Practical considerations for patients in Canada
Cost. Mid to value tier, typically well below the European premium brands.
Canadian presence. Hiossen Implant Canada Inc. operates as Osstem's Canadian division from Toronto, with its own ordering platform and education programme. A manufacturer-owned Canadian entity is a better sign for long-term parts supply than distribution through a third-party reseller.
Scale. Osstem's manufacturing volume is genuinely enormous, it is consistently ranked among the largest implant manufacturers in the world by unit volume. That is reassuring for continuity of supply: a manufacturer producing at that scale is unlikely to discontinue a platform quickly.
Evidence base. Smaller and more recent than the European premium systems, and a greater proportion of it is manufacturer-associated. This is the main trade-off at this price point.
Questions worth asking your dentist
- Which Hiossen system and which fixture size, mini, regular or ultra wide?
- Is my abutment colour-coded yellow or green, and will you record that?
- Are you loading at six weeks, and what makes my case suitable for that timeline?
- How many Hiossen cases have you placed and over how long?
- What would the same treatment cost with a premium system?
- Will you record the system, connection size and reference number in writing?
Frequently asked questions
What does SA stand for?
Sandblasted and Acid etched. It describes how the implant surface is roughened: blasting it with abrasive particles, then etching it with acid. This is the most common surface preparation method in the industry.
Is Hiossen the same as Osstem?
Hiossen is the North American affiliate of Osstem Implant, a very large South Korean manufacturer. The systems are closely related.
What is a Morse taper connection?
A tapered shaft locking into a matching tapered socket by friction. Hiossen uses an 11-degree taper and states it forms a self-sealing, hermetic joint that reduces micro-movement and limits bacteria entering the gap between implant and abutment.
References
- Hiossen. ETIII SA Implant System Catalog. Manufacturer brochure.
- Hiossen. ET III / ET IV System. Manufacturer document PB22ETSLTR1.0.
- Hiossen. SS System and MS System manuals. Manufacturer documentation.
- Hiossen. LODI / R-Tx Doctor Brochure. Manufacturer documentation.
Specifications compiled from Hiossen's publicly available product literature. Performance figures quoted are the manufacturer's own, are measured against RBM surface technology as stated in that literature, and are identified as manufacturer claims. DentalImplantInfo.ca is not affiliated with, endorsed by or sponsored by Hiossen or Osstem. Hiossen, Osstem, ET III, LODI and R-Tx are trademarks of their respective owners, used here for identification and educational purposes.