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 speed on a quad bike (ATV) Share. The highest speed on a quad bike (ATV) is 315.74 km/h (196.19 mph) achieved by Terry Wilmeth (USA) onboard his ALSR Rocket Raptor version 6.0, a modified Yamaha 700 Raptor at the Madras Airport, Madras, Oregon, USA, on 15 June 2008. The ATV was augumented with a hybrid rocket thruster.