2.5 billion people worldwide have untreated dental caries. The chemistry to fix them already exists. The delivery mechanism is the problem. This is the solution.
Deep cavity treatment has not fundamentally changed in decades. A dentist drills, applies an antibacterial agent, waits, fills the cavity, hopes the seal holds. Each step is a separate instrument. Each instrument is a separate failure point. The patient returns two or three times. The infection sometimes comes back anyway.
The chemistry works. Silver Diamine Fluoride arrests decay and kills bacteria effectively. Bioactive glass initiates mineralisation. Calcium-phosphate composites seal reliably. The problem is not what to use — it is how to get all of it, precisely, deep into the cavity, in one motion, in one appointment. That is the gap. That is where this idea lives.
"The chemistry works. The delivery mechanism is the problem. That is exactly where startups win."
The outer layer is stiff enough to reach deep into the cavity without collapsing — even through a small access hole. No additional instruments needed.
The inner lumen delivers optimised SDF+ formula under slight pressure — reaching infected dentin tubules. The micro-perforated distal tip allows lateral diffusion into demineralised zones that conventional applicators cannot reach.
As the tube is withdrawn, it extrudes a bioactive paste — glass ionomer or calcium-phosphate composite — back-filling the cavity from the bottom up. No voids. No air pockets. Perfect seal.
The resorbable tube — made of collagen, gelatin, or PCL — degrades over weeks to months, releasing a secondary regenerative agent such as peptide P11-4. Natural dentin repair begins from within. The tooth heals itself.
| Component | Material | Purpose |
|---|---|---|
| Outer layer | Semi-rigid PLGA polymer | Structural integrity for insertion. Degrades after sealing. |
| Inner lumen | Hydrophilic channel with pressure valve | Controlled SDF+ delivery under defined pressure. |
| Distal tip | Micro-perforated collagen membrane | Lateral diffusion into demineralised dentin. |
| Back-fill payload | Calcium-phosphate or glass ionomer | Bioactive sealing that bonds to dentin and releases fluoride. |
| Resorbable body | Collagen, gelatin, or PCL matrix | Degrades over 4-12 weeks releasing regenerative peptide. |
| Regenerative agent | Peptide P11-4 or tideglusib | Stimulates pulp stem cells. Natural dentin bridge formation. |
The same delivery tube works with different chemistries for different clinical needs. SDF+KI for caries arrest. Tideglusib for pulp regeneration. Bioactive glass for remineralisation. Antimicrobial peptides for persistent infection. The tube is the platform. The chemistry is interchangeable. That is what makes this fundable — an entire clinical category, not just one product.
This would have taken 15 years in 2010. With AI it will take 3 to 5 years. Fluid dynamics simulations model how SDF+ flows through the micro-tube in days, not years. Material degradation modelling predicts resorption rates before a single prototype is made. Machine learning identifies which polymer combinations minimise inflammation and maximise bacterial kill. The first working prototype can be built computationally before anything touches a lab bench.
A dentist or dental researcher who has sat in clinic and felt this frustration personally. Ideally paired with a biomaterials collaborator and simulation capability. Kings College London Dental Institute, UCSF, University of Michigan, and IIT Bombay Biosciences are natural starting points. Many dental researchers are actively looking for exactly this class of industry partnership.
The market is 2.5 billion people. The dental device market is $8 billion annually. The dentist who first uses this in clinic will never go back to the old way.
Developed through original thinking, refined with Grok and DeepSeek. Released freely — no patent, no equity stake, no permission needed. If you build it and it works, we would love to know. But we will not ask for anything in return.