Metallic snip and clunk of shears through bone with some squishing of soft tissue during an operation.
Electric drill operate, rev in reverse
Furnace bubble and crackle
Furnace bubbles crackle with a low rumble
Ambient room noise of the emergency room or operating room with heart monitor beeps and crowd chatter.
Dentist drill high speed with air
Dentist drilling slow in tooth
Dentist amalgamator machine
A dentist cleaning teeth with sprayer.
A dentist excavating and picking at a tooth.