I replaced mine yesterday after like .... 11 months. God, it feels a lot better now 
The only reason I wated so long waw sit's hard to find the replacement heads around here.
How often do you guys replace the head on it? I usually brush once or twice a day for 10 minutes each time.
The only reason I wated so long waw sit's hard to find the replacement heads around here.
How often do you guys replace the head on it? I usually brush once or twice a day for 10 minutes each time.