Experiment Study and Mechanism Analysis of Ca(OH)_2 as the Retarder of High-Sulphur Coal;

Methods The paste powder of Tinidazole,Ca(OH)_2,Iodoform,mixed with Clove oil were used for one time treatment of root canal and compared with the using of regular root canal filling applied in many-time therapy.

Ca(OH)_2 Catalytic Gasification of Coal Humic Acid Experimental Study;

Study on the situ production of calcium hydroxide particle under the polyacrylamide solution;

Reaction behavior between calcium oxide or calcium hydroxide and aluminate solution with heavy caustic soda;

Development of a new colorific calcium hydroxide adsorbent;

CuO Added to the coal can improve the action of sulfur fixation of CaO, CaOH and CaCO 3, of which the improvement of Ca(OH) 2 was largest and the efficiency of sulfur fixation of Ca(OH) 2 added with CuO reached 83.

AIM:To compare the antimicrobial activity of Ca(OH) 2、Iodoform、FC and Vitapex to the bacteria in the root canal of human extracted teeth in vitro.

Methods Ac-cording to bacterial occurrence and clinical effect,40cases of infectious root canal of deciduous teeth disinfected with Ca(OH) 2 were investigated,the other40cases with traditional way of using FC and CP respectively,were used as the control.