For decades, the conclusion of a root canal treatment was synonymous with a few final, critical steps: cleaning, shaping, and then sealing the intricate inner world of a tooth's roots. This final seal, the barrier against future reinfection, has long been the domain of materials like zinc oxide-eugenol or epoxy resins. But in the quiet halls of endodontic advancement, a revolution has been taking place, one that promises not just to seal, but to integrate.