Definition of knack. 1  1 : a special ready capacity that is hard to analyze or teach. 2  2a : a clever trick or stratagemb : a clever way of doing something. 3  3 archaic : an ingenious device; broadly : toy, knickknack.
Medical Definition of gingivoplasty. plural. gingivoplasties. : a surgical procedure that involves reshaping the gums for aesthetic or functional purposes.
Gingivitis is considered the earliest stage of periodontal disease. This stage is reversible with proper care. It is indicated by inflammation of the gingiva, or gums. In the early phases of gingivitis, some plaque is present and there is a mild redness of the gums, but the gingival surfaces are smooth. Dental calculus is calcium phosphate and carbonate mixed with organic matter.