THE ROOT CANAL PROCEDURE, STEP BY STEP. 1  An opening is drilled through the biting surface to allow access to the tooth pulp. 2  Tooth roots are cleaned and disinfected using special needles and rinsing substances (e.g., sodium hypochlorite, EDTA, and chlorhexidine).
In 1973 the Widowmaker 7 was confirmed as the fastest motorcycle on Earth by Guinness Book of World Records, recording an 8.68-second 1/4 mile run at 172 mph. Obviously it's been dethroned since then, but it's still a cool piece of two-wheeled history. Most Popular.
Fastest production bike in the world is the MTT Turbine Superbike. The 320 horsepower base model has a top speed of 227 MPH. The 420 horsepower Street Fighter model hasn't been tested yet. To be fair, though, manufacturers agreed not to sell any bike that went faster than 186MPH for years.