Beverly to Mr. Smith: "This is dental calculus and is what many people refer to as tartar. Calculus is primarily made up of 70-90% inorganic salts. Bacterial plaque/biofilm adheres to the calculus very easily and thus plays a role in periodontal disease as a carrier for the bacteria. I will remove the calculus in order to provide a smooth, slick surface on the crown and root surfaces which are then less likely to attract bacteria."
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