How Long have you had it and how do you know when it needs replacing?
I think mine needs looking at. Have had it 6 years, brush and floss regularly (okay maybe not flossing as regularly but flossing was what snapped my original tooth so I’m wary!) but on Friday i noticed some blood coming from the crowned tooth and I think it wobbles slightly.
Can it need replacing already? In my head they lasted a good 10 years but from a quick google they may need replacing after 5!
I’ll call my dentist tomorrow and see when they can fit me in. I’ve got a wedding to go to in a couple of weeks and I’m scared it’s going to just fall out and leave me with a gap 
I do go to the dentist every 6 months as I have shit teeth and always need something doing inbetween appointments. Dp and the dc only go once a year 