About Arch•OS

A Platform Built to Help Standardise Full-Arch Reconstruction.

Arch•OS was built on a single conviction: that treatment for the loss of a full dental arch should be more predictable and accessible for suitable patients at qualified clinics, ideally within a single surgical day.

The Problem We Solve

Full-arch dental implant reconstruction is one of the most complex procedures in modern dentistry. Historically, it demanded thousands of hours of accumulated experience before a clinician could plan and deliver cases with real confidence. Outcomes varied. Patients waited months — sometimes years — between extractions and a final smile.

Arch•OS is designed to reduce that variability. Our in-house designers use our AI design engine to turn your CBCT scans, intraoral data and facial photographs into a proposed surgical plan, which you review and approve. Our 3D-printed surgical guides are designed to help transfer that plan to surgery with a high degree of accuracy. And with our Immediate protocol, suitable patients can leave with fixed provisional teeth on the day of surgery.

The Arch•OS Certified network is growing, extending access to the Arch•OS workflow to more communities of patients.

About The Founder

Dr. Vijay, founder of Arch•OS

Dr. Vijay.

33 years in dentistry.
27 years in full-mouth implant reconstruction.

After more than two decades treating patients, I stepped away from chairside clinical practice in 2019 to focus on a bigger challenge:

How do we make complex full-mouth implant reconstruction more predictable, repeatable and accessible?

Today, I combine decades of clinical experience with the latest developments in digital dentistry, AI, guided surgery and engineering to improve patient outcomes and streamline the clinical workflow.

The goal is simple:

To make full-mouth implant reconstruction a standardised, consistently predictable and repeatable treatment that can be delivered at scale to the millions of people around the world who need it.

Founder — 21D

Creator & Founder — Arch•OS

Founder — EvoDental | Retired 2019

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The Arch•OS Team

Paul Smullen, CTO of Arch•OS

Paul Smullen - CTO

Paul has more than 30 years of experience building software, teams and businesses, and now specialises in applied AI.

At Arch•OS, Paul built an AI research team whose 3D medical imaging models now have patents filed and are used in the Arch•OS design and planning workflow. He also built the Arch•OS portal and led a custom LLM project for context-aware patient conversations designed with safety guardrails. Operationally he has moved the engineering teams onto AI-assisted development platforms and assists all departments to safely and securely adopt AI tools.

Paul is now focussed on scaling Arch•OS globally leveraging the latest in AI technology at every opportunity.

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Dr Izabela Turek, Lead clinician at Arch•OS and 21D

Dr Izabela Turek

I am Lead clinician at Arch•OS and 21D. Since dedicating my career to full-arch rehabilitation in 2014, I have seen how life-changing this treatment can be.

At 21D, I work with a team I am incredibly proud of, supported by advanced technology and centres designed specifically for the care we provide.

But it is the patients who keep me hooked - their joy, renewed confidence and heartfelt gratitude make this work so rewarding.

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Dr. Brittney Barrow, Advisor to Arch•OS

Dr. Brittney Barrow, DMD

Advisor

Board-Certified Oral and Maxillofacial Surgeon

Dr. Brittney Barrow is a board-certified oral and maxillofacial surgeon based in Atlanta, specialising in dental implant surgery, full-arch reconstruction and bone grafting. She earned her DMD at Boston University. She then completed an oral and maxillofacial surgery fellowship at Harlem Hospital Center and four years of surgical training at Harbor-UCLA Medical Center, a Level I trauma centre. She has performed more than a thousand surgical cases and is skilled in IV sedation and general anaesthesia.

Dr. Barrow is excited to support Arch•OS’s expansion into the United States and its mission to advance dental implant care through innovative technology and surgical solutions. She is committed to shaping the future of implant dentistry by combining surgical expertise with emerging technologies that improve treatment planning, precision and clinical outcomes.

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What We Stand For

AI-First

AI powers each stage of our design work, from the initial plan to prosthetic design. Our designers are amplified, not replaced, and you approve every plan.

Clinical Precision

Our surgical guides are manufactured to tightly controlled tolerances under our quality management system.

Global by Design

Based in the UK and Dubai, our systems are designed to scale across geographies and regulatory environments, delivering consistent protocols wherever Arch•OS is available.

Clinician Partnership

Arch•OS is not a replacement for clinical judgment — it is the infrastructure that lets clinicians deliver consistent, high-quality care at scale.

ARCH•OS

The Operating System for Full-Arch Reconstruction.
AI-assisted design and lab service.

Contact & Legal

© 2026 21D Clinical Limited. Arch•OS is a product of 21D Clinical Limited, registered in England and Wales, company number 09476584. Registered office: Unit 602, Birchwood One Business Park, Dewhurst Road, Birchwood, Warrington WA3 7GB.

Arch•OS is intended for use by qualified dental professionals. Information on this site is not medical advice. Treatment outcomes vary and not all patients are suitable for full-arch or immediate-load treatment. Product availability and regulatory status vary by country.