A study of a new medicament in the chemomechanical preparation of infected root canals

The effectiveness of Gly-Oxide (a solu­ tion of 10 per cent urea peroxide in a vehicle of anhydrous peroxide) was com­ pared with that of aqueous hydrogen peroxide in the chemomechanical prep­ aration of infected root canals in 77 single-rooted teeth. With both solutions, growth-free cultures were obtained in more than 90 per cent of instances after the initial cleansing and enlarging of the canal. However, with the initial culture at the second visit, Gly-Oxide was sub­ stantially more efficient than aqueous hy­ drogen peroxide in producing growthfree cultures (65.7 per cent versus 48.5 per cent).