this study is to review an effect on the improvement of enamel crystallinity with gel method in the course of orthodontic treatment by applying gelatin gel method ( group ii ) as well as silica-hydro gel method ( group i ) to bracket-bonded enamel surfaces of extracted teeth and for a relative review , the chopped cross sections of the above teeth were analyzed by the method of micro area x-ray diffraction .
C0011350
enamel
C0040426
teeth