4.7. Dental Anaesthetic Videos

The videos in this section document the behaviour of dental anaesthetic preparations under dark field microscopy, particularly during sessile droplet evaporation and related post-evaporation change. Although these observations emerged from the broader Pfizer investigations, the dental preparations proved to be materially different systems. Unlike the Pfizer Comirnaty preparations, which were often colloidally dense from the outset, many of the dental anaesthetics initially appeared microscopically clear before progressively developing visible organisation over time.

These videos therefore became important for understanding emergence itself: how apparently simple liquids may reorganise into vesicular, fibrous, colloidal, gel-like, and crystalline structures under changing local conditions. Across multiple preparations, recurring motifs were observed, including Circle–Rectangle Motifs, Crystal–Fibre Assemblies, distributed crystallisation, boundary formation, and phase transitions associated with metastability and structural persistence.

The early videos were initially interpreted through the language available at the time, including nanotechnology and engineered systems terminology. Over time, the work has shifted toward a broader soft matter framework grounded in direct observation, phase behaviour, confinement effects, evaporation dynamics, and material reorganisation. The videos presented here are therefore best approached as observational records of evolving soft matter systems rather than as demonstrations of a single established mechanism.