i have used ur hammer flow 2.0 for 2 years now. currently switched to hammer
ultra flow 2.0 and found that theres is a diffrence in brush head size and the ultra flow vibartions to be abit too strong on the gums..i have used for 2 weeks and getting used to it..seems to be abit better now.. i just want to check and see if it causes abrasion of the teeth.if i am satisfied with ultra flow .. willm recomend it to my patients here in malaysia.However here there are plenty of electric tooth brush bands fro other countries and the price rangess from 20- 250 rinngit malaysia..if bought in bulk would there be reduction in the price cost .would like to speak to representative from ur company.my number+[****]