Results
One hundred and seventy individuals fulfilled the 12-month visit. The participants’ characteristics at baseline and M12 are presented in Table Study characteristics at baseline and M12125% lowest factor250%inbetween factor325% highest factor125% lowest factor250%inbetween factor325% highest factorThe participants’ registered use of the powered toothbrush is presented (Table Registered brush data from participants’ powered toothbrushes at 6 and 12 monthsThe participants reported their self-estimated use of manual and powered toothbrushes in a questionnaire at each examination. The results are presented in Table Participants’ self-estimated daily or several times daily use of manual and powered toothbrushes in percentThe PI, BOP, and PPD ≥ 4 mm values from BL to M12 improved in the three brush groups between baseline and 12 M. The changes are statistically significant except for BOP in group 1 (Table The brush groups’ change in values for PI, BOP, and PPD ≥ 4 mm from BL to M12