| calculus |
Calcified material formed by hardened plaque attached firmly to the tooth and which cannot be removed simply by brushing.
출처: www.pvdp.co.uk/glossary.html
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| calculus |
A method of calculation. One of several highly systematic methods of treating nproblems by a special system of algebraic notations.
출처: academic.evergreen.edu/curricular/mit2005/mit2004/...
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| calculus |
plaque left on the teeth, also called tartar.
출처: www.dentalsavingsplans.com/commondentalterms.htm
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