Firstly, I have to congratulate TS for starting the informative and useful thread.

I'd like to ask whether calcium supplement is good for teeth?
My brush my teeth twice daily and floss occasionally but not using any rinse. I am taking a daily 500mg calcium supplement. I found that when I take calcium, the gum/ teeth border (the side facing tongue, not lips) will form some whitish soft cement. Brushing will not remove it but using finger nail can easily scratch it off. It is like 'soft cement', quite similar to calcium deposit. Is it a cause for concern?

I think my teeth had minimal calculus. Dentist charged me RM80 (i saw the table for scaling is RM80-RM150) even I did not go for scaling for 10+ years. All the while no pain, no bleeding, no shaking tooth, no sensitive teeth. But my gum is a bit receeding because I used to use HARD tooth brush. Dentist advise me to change to SOFT type tooth brush, now the gum line maintained. I also think my teeth is quite hard, I use my teeth to crack the crab claw while others use the "crab cracker tool" to break the shell.