Calculus is mineralized plaque that accumulates on hard tooth surfaces, both supra- and sub-gingival. Calculus accumulates faster on the buccal surface of teeth, in particular adjacent to the maxillary 4th premolars and parotid and zygomatic salivary duct openings. Whilst calculus does not directly result in periodontal disease, it certainly aids in the accumulation of plaque, acts as a local irritant and prevents healing of subgingival tissues. The treatment aim is to thoroughly remove all calculus form the tooth surface. Calculus accumulation can be classified by coverage of tooth surface area where the Calculus Index (CI #) refers to:
The treatment aim is to thoroughly remove all calculus form the tooth surface.