Pressing the receiver against his shoulder, Dr. Miller watched the digital clock on his desk flick over to . Outside his office in Louisville, the afternoon light was beginning to bruise into a deep purple, the kind of light that usually signals the end of a productive day.
Instead, he was trapped in an auditory purgatory of distorted MIDI jazz, waiting for a human being to tell him something that a catalog couldn’t. He needed to know if a specific zirconia-cutting diamond bur, the one with the green band he’d used for six years, was still the best choice for the new high-translucency monolithic crowns he’d just started seating. It was a clinical question. It was a question about tactile feedback and heat generation.
26
Minutes
The auditory purgatory: The average threshold where logistical efficiency becomes clinical friction.
When the representative finally answered, the voice was bright, professional, and entirely hollow. It was the voice of a person who had never stepped foot in a wet lab, let alone felt the vibration of a handpiece against a stubborn substrate. The representative didn’t ask about the RPMs Miller was running or the cooling spray volume.
They didn’t discuss the risk of micro-fractures in the ceramic matrix. Instead, they verified his account number, confirmed the SKU, and read a three-sentence blurb from