Sonia is a voice-powered AI assistant that automates documentation in real time. It listens during appointments, captures what’s clinically relevant, and generates a ready-to-bill chart note within seconds—fully formatted and mapped to local coding standards.
In the typical daily rhythm of a dental practice, time is scarce and multitasking is the norm. Between preparing treatment rooms, welcoming patients, and delivering care, one task often gets sidelined: documentation.
Chart notes are frequently postponed until the end of the day—or worse, late into the night at home. That’s the pain point Sonia is solving. For clinicians, that means no more late-night typing, fewer mistakes, and more time to focus on what truly matters: patient care.
“Sonia replaces the mouse and keyboard with a hands-free assistant,” says co-founder Philipp Kuhn-Régnier. “It fits seamlessly into your workflow and lets you leave the office when your last patient does.”
“Luxembourg is a country where healthcare innovation is seen as a growth lever.”
Philipp Kuhn-Régnier, co-founder of Sonia
Why Luxembourg?
Sonia operates out of Germany and Luxembourg—two locations chosen for both strategic and regulatory reasons. “Luxembourg is a multilingual, compact test bed for scaling across Europe,” explains Kuhn-Régnier. “But more importantly, it’s a country where healthcare innovation is seen as a growth lever, not just a compliance issue.”
The country’s regulatory environment, access to European institutions, and robust government support for digital health startups made it an ideal location. “It’s easier to launch complex innovations here than in larger, more fragmented systems,” he adds.
Plug-and-play AI for dentistry
Sonia was built with simplicity in mind. Installation requires no IT infrastructure—just a microphone, a browser, and a secure login. Once activated, the assistant distinguishes between the voices of dentists, assistants, and patients, and translates clinical dialogue into structured, compliant documentation.
This functionality was put to the test at the International Dental Show (IDS) in Cologne. “We did live demos in a booth smaller than three square meters,” recalls Kuhn-Régnier. “Sonia transcribed three full clinical simulations in a row. Attendees were stunned—it basically sold itself.”
“Dentists forget 12 to 15% of billable procedures each day.”
Philipp Kuhn-Régnier, co-founder of Sonia
Custom workflows, standardised output
Rather than force clinics into a rigid system, Sonia adapts to each practitioner’s preferred approach. Users can upload their existing templates, define custom fields, and even train the AI on local vocabulary or specialty-specific language.
“Think of Sonia as a translator,” says Kuhn-Régnier. “You speak your language, and it outputs what your colleagues, insurers, and regulators need to see.”
From soft gains to hard revenue
Time saved is one part of Sonia’s value proposition. But the other is revenue. Across Europe, dental services are highly segmented. A simple €100 procedure could break down into ten separate codes—and many of those are easy to forget when documentation happens hours later.
“We found that dentists forget 12 to 15% of billable procedures each day,” Kuhn-Régnier notes. “Not because they’re careless, but because they’re prioritising patient care. Sonia removes that burden.”
Practices using Sonia report time savings of up to an hour per day and revenue increases of 10–15%, thanks to more complete billing.
“We’re building Sonia to be a doctor’s co-pilot.”
Philipp Kuhn-Régnier, co-founder of Sonia
Supporting the admin backbone
The impact goes beyond dentists themselves. Administrative staff—particularly ZMVs (Zahnmedizinische Verwaltungsassistentinnen)—also benefit from Sonia’s clarity and consistency. “One practice manager told us their ZMV always knows when Sonia wrote the note—because it’s readable and complete,” Kuhn-Régnier shares. “They’re spending less time correcting records and more time with patients or payers.”
Building a scalable future for care
With over 400 dental practices already using Sonia the company is preparing for its next phase: rapid growth. But the vision doesn’t stop at dentistry.
“We’re building Sonia to be a doctor’s co-pilot,” Kuhn-Régnier says.
Structuring healthcare data—finally
Beyond productivity, Sonia’s long-term potential lies in structured, interoperable data. Today, most patient records are stored as unstructured PDFs—opaque to systems, unreadable to future providers.
Sonia flips the script by capturing clean, structured data in real time. “Imagine if a dentist notes a cavity on the lower left molar. With Sonia, that’s no longer buried in a paragraph—it’s a datapoint another doctor can see, track, and build on,” he says.
Operating in a regulated environment, Sonia was built with privacy at its core. All data is encrypted during transmission and at rest, stored exclusively in EU-based, ISO-27001-certified data centres.
“GDPR isn’t a constraint—it’s a design principle,” Kuhn-Régnier emphasizes.
“With Sonia, doctors are successful doctors.”
Philipp Kuhn-Régnier, co-founder of Sonia
The AI-powered solo practice
With rising costs and staff shortages, Sonia may also help save solo practices. “Personnel can account for >50% of a clinic’s expenses. AI makes it possible to stay independent, even in rural areas,” says Kuhn-Régnier.
It’s a subtle but powerful shift. Rather than replacing doctors, Sonia empowers them—by giving time back, capturing revenue, and laying the groundwork for a healthcare system that’s more connected, transparent, and humane.
Although focused on dentistry today, Sonia’s ambitions extend further. “Our mission is simple,” says Kuhn-Régnier. ‘With Sonia, doctors are successful doctors.’ That principle will guide our expansion into other medical fields.”
The company is already in discussions with public and private stakeholders to deploy Sonia more widely across Europe’s healthcare landscape. “We’re committed to helping health systems—nationally and at scale—move toward structured, AI-supported documentation that truly serves care delivery.”
Sonia isn’t just a tool for faster notes. It’s a vision for what healthcare can be: intelligent, efficient, and human-centred. As Europe’s healthcare systems face rising complexity, Sonia offers a clear, accessible, and scalable answer—one voice command at a time.
This article was published in Silicon Luxembourg magazine.
