Primarily soft, but
Other than the type of brush, there are other factors that can help you achieve better results.
. For example, standardizing the length of time of brushing by using an electric brush (sonicare, or oral-b) which have automatic 2 min. Timer.Also since ur gums are swollen, i strongly suggest rinsing with warm salt water twice a day, better yet dip ur brush in salt water & then brush. & see ur dentist!