Calculus:

Calculus:
- Calculus, sometimes called tartar.
Dental calculus is a hardened deposit of dental plaque found on your teeth and under your gums. This is also one of the pre-disposing factors for gingival inflammation. Calculus forms on natural teeth surface and dental prosthesis. Presence of plaque is necessary for the formation of calculus.
Treatment:
Generally, it can only be removed with special instruments by a dentist or dental hygienist.