Antibacterial therapy. People who are very prone to tooth decay may need antibacterial therapy. Dentists first remove cavities and seal all pits and fissures in the teeth. Then dentists prescribe a powerful mouth rinse (chlorhexidine) that is used for 2 weeks to kill off the bacteria in any remaining plaque.
Though GM stock prices were exorbitantly high, the market interest in Chevrolet made the five-for-one trade irresistible to GM shareholders. With the sale, concluded on May 2, 1918, Durant regained control of GM.
That first year Ford outsold Chevy about 30 to 1. By 1920 Chevro-let had cut the margin to 3 to 1. In 1924 Chevrolet named a new leader, William Knudsen, a former Ford executive. Ford outsold Chevy by more than a million cars that year, and Knudsen was not at all pleased.