Photofunctionalisation, in plain language.
Every titanium implant ages biologically from the moment it is manufactured. UV light reverses that aging — returning the surface to the bioactive state your bone wants to bond with. SQUVA delivers exactly that, in 10 seconds, chair-side.
Biological aging of titanium
The implant surface has an approximately 50-nm-thick TiO₂ oxide film. From the moment the implant leaves the production line, hydrocarbons in the air adsorb onto that film. The longer the implant sits in its packaging, the more contaminated and hydrophobic the surface becomes.
This is the now-recognised phenomenon of biological aging — it doesn’t change the geometry of the fixture or the marketing claims on the box, but it quietly erodes the very surface property your body relies on for osseointegration: hydrophilicity.
UV light cleans, charges and rewets the surface
UV irradiation does three things at once. It photo-oxidises hydrocarbon contamination, it generates reactive electron sites on the TiO₂ surface, and it shifts surface charge from negative to positive — the state proteins, blood and osteogenic cells prefer.
The visible result is dramatic: a water droplet that beaded up on an aged implant collapses and spreads completely on a SQUVA-activated one. That spreading is the same spreading that protein and blood do inside the osteotomy.
Cells stick. Cells multiply. Bone follows.
When the surface is restored, biology responds — every step of the cascade that ends in osseointegration accelerates.
Source: DENTIS internal in-vitro studies (UV-treated SLA surface vs. untreated control).
The four generations of implant surfaces.
SQUVA does for any modern implant what each generational change tried to do for the next one — without changing the fixture itself.
| Generation | Surface treatment | Goal |
|---|---|---|
| 1st generation | Machined titanium | Mechanical interlock with bone |
| 2nd generation | Sandblasted & acid-etched (SLA) | Macro/micro roughness for retention |
| 3rd generation | Chemical surface modification | Hydrophilicity at point-of-care |
| 4th generation | Biomimetic coatings | Bioactive surface chemistry |
| SQUVA | In-clinic UV photofunctionalisation | Restores hydrophilicity to any implant, in 10 seconds |
Selected literature.
Photofunctionalisation has been examined extensively in the peer-reviewed literature. A short, illustrative reading list:
Att & Ogawa, JPD 2012
“Biological aging of implant surfaces and their restoration with UV light treatment.”
Ogawa, IJOMI 2014
“UV photofunctionalization of titanium implants.” Comprehensive review of mechanism & clinical effect.
YH Kim et al, JOMI 2003
Foundational clinical assessment of implant surface aging and bone-implant contact.
Niklaus P. Lang et al, COIR 2011 (22:349–356)
Effect of hydrophilicity on bone apposition during early healing.
References are listed for educational context. SQUVA is a UV activator device manufactured by DENTIS CO., Ltd.
See the science put to work.
Six split-mouth clinical cases, real ISQ data, and panoramic imaging — all collected and authored by an independent clinician.